For CHICAGO MIDWAY INTERNATIONAL AIRPORT AIRPORT ......drawing E302 says to provide a new Caterpillar Diesel Generator. Please confirm any of the three manufacturers listed in the

ADD-/Page 1 of 19 SPEC. NO. 433280

ADDENDUM NO. 3

ForCHICAGO MIDWAY INTERNATIONAL AIRPORT

AIRPORT MAINTENANCE COMPLEX (AMC) IMPROVEMENTS

SPECIFICATIONS AND CONTRACT DOCUMENTS NO.433280

CDA Project Number: M8119.15-00

For which Bids were scheduled to be opened in the office of the Chief Procurement Officer, Department ofProcurement Services, Room 103, City Hall, 121 N. LaSalle Street, Chicago, IL 60602 on May 15, 2018 at11:00 a.m., Central Time.

The following changes and/or revisions are incorporated into the Contract Documents as noted. All otherprovisions and requirements as originally set forth, except as amended by previous addenda, remain inforce and are binding. Any additional work required by this Addendum must conform to the applicableprovisions of the original Contract Documents.

In accordance with Paragraph 13 of the “Requirements for Bidding and Instructions for Bidders” in Part Oneof Three of the Specifications, the deadline for questions has passed. No additional questions will beanswered prior to bid opening except as the Chief Procurement Officer, in her sole discretion, deems to bein the best interest of the City.

UPON SUBMITTING THE BID, THE BIDDER MUST ACKNOWLEDGE RECEIPT OF THE ADDENDUMNO. 3 IN THE APPROPRIATE PLACE AT THE TOP OF THE SIGNATURE PAGE OF THE PROPOSALEXECUTION FORM.

REVISIONS TO CONTRACT DOCUMENTSNOTICE OF ADDITIONS/REVISIONS

BID OPENING HAS BEEN POSTPONED TO May 21, 2018

1. The Bid Opening Date has been postponed to May 21, 2018. For which Bidsare due in the Department of Procurement Services, Bid & Bond Room, Room103, City Hall, 121 N. LaSalle Street, Chicago, Illinois, 60602, at 11:00 a.m.,Central Time.

PART THREE OF THREE

07110 See attached Technical Specification, Section 07110 has been included intoContract Documents.

08411 Replace entire Technical Specification, Section 08411 with attached revisedTechnical Specification 08411

08800 Replace entire Technical Specification, Section 08800 with attached revisedTechnical Specification 08800

09900 See attached Technical Specification, Section 09900 has been included intoContract Documents.

15950 See attached revised Technical Specification, Section 15950 that has replacedexisting Technical Specification 15950 of the Contract Documents.


DRAWING

7460-01 Temporary Critical Points (See Attached)A103 Roof Plan (See attached)

CLARIFICATIONS TO QUESTIONS

Question 1: Would it be possible to include Tubelite and EFCO as an approvedmanufacturer for the aluminum framed storefront for this project? AmarliteMfg. is no longer in business.

Response: Tubelite, Inc. and EFCO Corporation will be considered ApprovedManufacturer’s under paragraph 2.01.A of Technical SpecificationSection 08411 Aluminum-Framed Storefronts. Please refer to addendumdocuments.

Question 2: Section 01010-6, Paragraph 1.11 (Soil Borings) states that subsurface

investigations were performed as part of this Project and are included in the

Plans. Plan sheet C009, Note 1 states to Refer to Specifications for soil

boring logs. Soil boring logs are not in the specifications nor in the plans.

Can the soil boring logs be provided ?

Response: Soil Boring Logs included with Addendum. Please refer to addendumdocuments. (See attached)

Question 3: Section 03300-6 (b) states that the Contractor must transport and deliver thetest specimens to the QA Testing Laboratory. Where is the QA TestingLaboratory located ?

Response: The QA Testing Laboratory to be utilized is located at the AviationAdministration Building: 10510 West Zemke Road Chicago, IL 60666.

Question 4: Can you please confirm this project is Union only? MDW – AMCImprovements 433280 Project No. M8119.1500

Response: Confirmed. Please review the Instructions and Execution Documents,Specifically Part 6 – Multi-Project Labor Agreement, for all requirements.

Question 5: We would like to schedule a time with the contract team to visit the site for asite walk through. Can a date, time, location, contact name and number for asite visit with a contract representative be provided?

Response: A site visit for all potential bidders was provided on March 21 at10:30AM.

Question 6: Please advise if meeting minutes will be published in a vendor pool ftp site orsimilar in addition to the addenda that has been posted for the 3/8 pre-bidmeeting?

Response: No meeting minutes will be made available. All questions must besubmitted officially via email, at [email protected].

Question 7: Please provide clarification on whether or not there is no cap on the


associated contract Liquidated Damages (LD’s).

Response: Liquidated Damages will be assessed based on the information found inPart 4 of the Part One of Three, Instructions and Execution Documents.There is no cap on LD’s.

Question 8: Will site walks be conducted with contractors on an individual basis or will onecollective site walk be conducted will all contractors invited?

Response: A site visit for all potential bidders was provided on March 21 at10:30AM.

Question 9: Will contractors, subs, and vendors be able to request a site visit after thequestion cut-off date and time of 3/15 at 5 P.M.?

Response: A site visit for all respondents and potential bidders was provided onMarch 21 at 10:30AM. A revised question cut-off date was provided aspart of Addendum #1.

Question 10: Can the question cut-off date be extended?

Response: A revised question cut-off date was provided as part of Addendum #1.

Question 11: Will the bid due date be extended?

Response: A revised bid opening date was provided as part of Addendum #1.

Question 12: IFB states that this contract is Federally Funded, please clarify whether or notthe following applies with regards to LD penalties associated with DBE targetgoals“…For contracts funded in whole, or in part, by Federal HighwayAdministration, Federal Transit Administration, Illinois Department ofTransportation: When the contract requirements are completed, in the eventthat the City has determined that the bidder/proposer/contractor failed tocomply with the Contract DBE Participation Goal proposed by thebidder/proposer/contractor and accepted by the City, the City will thereby bedamaged in the failure to provide the benefit of participation to DBEs to thedegree set forth in the Special Conditions. Therefore, in such case ofnoncompliance, the City will deduct as liquidated damages cumulativeamounts computed as follows: For each one percent (or fraction thereof) ofshortfall toward the Contract DBE Participation Goal, one percent of the basebid for this contract shall be surrendered by the bidder/proposer to the City ofChicago in payment as liquidated damages.” Please confirm this applies tothis contact.

Response: This is found written in Part 1 of the Contract Documents, SpecialConditions Regarding Disadvantaged Business Enterprise Commitment,page, S5-25 through S5-26, Section 1.11, Non-Compliance, letter B, andparagraph two.

Question 13: When and where will the next Addendum be published?

Response: All Addenda will be published on the City’s website, and will be available


for pick-up at the Bid & Bond Room inside City Hall.

Question 14: Please reference Spec Section 03300, 1.01-B.11. Hydraulic cement is listedas a cast-in-place product for the project. Is this needed for slab to walljoints? This is not shown on the drawings. Please advise.

Response: No hydraulic cement used in project.

Question 15: Please reference Spec Section 03300, 3.01-E, which states "acceleratingadmixtures must not be used." Please advise if a non-chloride acceleratingadmixture can be used if submitted and approved by the Commissioner.

Response: A non-chloride accelerating admixture may be used if approved as partof the mix design.

Question 16: Various pre-fabricated metal building manufacturers are listed in theSpecification. On Drawing S001 base reactions and design loads are listed.Please indicate which PEMB manufacturer's design these loads are based on.

Response: Reactions and loads listed are based on RS&H calculations and areconsidered preliminary prior to final calculations and drawings beingsubmitted.

Question 17: Please reference Spec Section 03300, 2.01-L.1. Various types of PVCwaterstops are listed as approved manufacturers. However, the drawings donot show waterstops of the PVC type, for example Det 6/S201 is referencingan RX-type waterstop. Please advise if an RX waterstop is acceptable ifsubmitted and approved by the Commissioner.

Response: Acceptable if approved by commissioner and complies with allapplicable building codes.

Question 18: Please confirm that there is no telephone, data, Wifi, intercom, public address,sound system, Audio Visual system, etc. work in the existing AMC or the newvehicle storage building, as there are no specifications or drawings showingthese scopes of work.

Response: These systems are NOT included in the project per scope of work.

Question 19: Please confirm that there is no access control, CCTV, or intrusion detectionwork in the existing AMC or the new vehicle storage building, as there are nospecifications or drawings showing these scopes of work.

Response: These systems are NOT included in the project per scope of work.

Question 20: Please confirm that Liquidated Damages will be the sole and exclusiveremedy for delay.

Response: Confirmed.

Question 21: Please confirm a mutual waiver of consequential damages, as listed, will beinserted into the final contract documents: “In no event shall any IndemnifiedParty or the Contractor be liable to the other for any indirect, special orconsequential damages (including, but not limited to, loss of profits, interest,


earnings or loss of use) whether arising in contract, tort or otherwise.”

Response: The Part Two of Three, General Conditions, are part of the ContractDocuments that are non-negotiable.

Question 22: Please confirm that The Owner is the generator of all unknown pre-existinghazardous material and will sign transportation manifests as such in the eventthat abatement is necessary.


Question 23: Please confirm that Owner will indemnify the Contractor for any loss, cost,expense, or fine related to any pre-existing hazardous material.

Response: The CDA does not anticipate finding any existing hazardous materialduring this project. The Contractor is required to notify theCommissioner when any potential hazardous material is discovered.Compensation for any required abatement and/or removal and disposalwill be dealt with via the field order process.

Question 24: Several subcontractors have requested a site visit to the existing AMC.Please schedule a site visit to view the existing equipment and conditions.

Response: A site visit for all respondents and potential bidders was provided onMarch 21 at 10:30AM. A revised question cut-off date was provided aspart of Addendum 1. No additional site visit will be provided.

Question 25: Drawing PS101 indicates to upgrade the existing underground PP-2 TankPumps (pumps as in more than one), however the potassium acetate pumpschedule only indicates one pump. Please provide the number of pumps to beupgraded.

Response: As-Builts indicate only (1) one underground pump. See excerpts fromAs-Builts below.


Question 26: Please provide the geotechnical report and soil borings for the site.

Response: Soil Boring Logs included with Addendum. Please refer to addendumdocuments.

Question 27: Specification 16620 lists 3 manufacturers for the Diesel Generator. However,drawing E302 says to provide a new Caterpillar Diesel Generator. Pleaseconfirm any of the three manufacturers listed in the specification areacceptable.

Response: Caterpillar is the basis of design coordinated with the CDA. TechnicalSpecifications indicate two other acceptable manufacturers.

Question 28: Details 1, 2, 5 & 7/A401 indicate the metal wall and roof panels are to receiveintumescent paint to achieve a 1 hour rating. Please advise if the 10" steel Zgirts on the wall and roof assemblies are to receive intumescent paint.

Response: Intumescent paint shall NOT be required on the walls or roof. Metal wallpanels shall be Fire Rated Insulated Metal Wall Panels rated to 1 hourper UL Design No. 050 requirements. Basis of Design shall beThermalSafe panels by Metl-Span. Per UL Design No. 050, panels shallbe 42” wide by min 4” thick. Thickness of Insulated Metal Wall Panels tohave a total R-Value of R-13 min. Provide additional R-13 of batt


insulation between the girts. Color of metal panels to match metal wallpanels on existing adjacent AMC building. Insulated metal roof panelsare to remain as specified. However, the intumescent paint on theunderside of the roof panels is no longer required.

Question 29: Specification 16495 references standard automatic transfer switches andautomatic transfer switches with isolation bypass. The drawings are notclear as to which type we are to provide. Please advise if we are to providestandard automatic transfer switches or automatic transfer switches withisolation bypass.

Response: Provide automatic transfer switchers with isolation bypass.

Question 30: If we are to provide standard automatic transfer switches, do they need to bedraw out type electrically operated?

Response: Yes, CDA Standard specifications call for draw-out type.

Question 31: General Note 5 on Drawing E001 says to provide rough-in for telecom outletsconsisting of outlet boxes, conduit and sleeves. There are no locations fortelecom outlets shown on drawings. Please provide telecom outlet locations.

Response: This is just a general note and would only apply if locations werespecifically called for in the drawings. The engineer is unaware of anyrequired telecom outlet locations. Should one be added either throughaddendum or through a change order during construction, this note willapply.

Question 32: Detail 2A/S202 indicates a "Waterproofing Membrane" on the foundation wallbelow exterior grade. No other wall sections (Structural or Architectural) showwaterproofing. Specification Section 07260 - Vapor Barrier does not includeinformation for waterproofing products for below grade vertical waterproofingapplications. Please confirm the extent (if any) of the below gradewaterproofing on the foundation walls and provide appropriate specifications.

Response: Bituminous Dampproofing should be applied where the building slab islower than grade. Included with this addendum is TechnicalSpecification, Section 07110 Bituminous Dampproofing. (See Attached)

Question 33: No painting specification has been provided in the project contract documents.Please confirm that all hollow metal doors are to be painted. Reference sheetA-701 Maintenance Complex Door Schedule & Vehicle Storage Facility DoorSchedule as well.

Response: Confirmed. Colors to be selected by architect from manufacturer’sstandard colors. Paint specifications per Section 09900 have beenincluded with this addendum. (See attached)

Question 34: General Note 3 on Drawing E302 says to "Provide an allowance for incidentalpower connections to the following: generator, load bank, fire alarm system."Please provide a value for this allowance.

Response: Intent is for contractor to provide all required connections for a


complete installation. Electrical Contractor to provide the requireddollar amount to cover their efforts.

Question 35: Key Note 7 on Drawing E302 references a "Deduct Alternate." There is noplace for this on the bid form. Please issue new bid form with this DeductAlternate.

Response: Please update bid form to include Deduct Alternate. Minimal EM Circuitsare required in the new truck storage building. See below for details onrequested deduct.

Question 36: Key Note 9 on Drawing E302 says to provide "Simplex Neptune 650kWresistive load bank." Please confirm an equivalent manufacturer is acceptablefor this resistive load bank.

Response: Language is based on the standard CDA specifications. Equivalentmanufacturers will be considered based on CDA approval.

Question 37: Please provide the maximum allowable equipment height allowed for a craneto work onsite erecting and positioning materials during the day.

Response: The maximum allowable equipment height varies depending on thelocation on site. See Sheet 7460-01 included with this addendum forclarification.

Question 38: Please define required full time positions that will be required on site full timefor the duration of project.

Response: This is an open-ended question, which can vary based on Contractor’smeans and methods. Please note that all requirements must be met aslisted in the Instructions and Execution Documents, Specifically Part 6 –Multi-Project Labor Agreement, for all project labor. Additionally, pleasereview the Quality Control and Safety requirements of the project forrequired QC and Safety staffing.

Question 39: Please confirm responsible party to conduct and pay for all material testingand special inspections as noted.

Response: Full-time Contractor Quality Control is to be included in the base bid.The City will provide Quality Assurance as needed.

Question 40: Please confirm if contractor QA Program Administrator and Quality ControlTechnicians will be required full time on the project for the duration. Will theseindividuals be able to perform production functions or only be allowed to solely


perform QC functions?

Response: The QA Program Administrator does not need to be onsite full time. TheQuality Control (QC) Techs are required to be onsite full time. QC Staffcan only perform QC functions and are not allowed to be part ofproduction.

Question 41: Please provide Commissioner's expectation for quantity of Quality Controlstaffing chart that is to ultimately be approved by Commissioner. Pleaseconfirm if these individuals will be allowed to also perform production work.

Response: Every division of work is required to be inspected by Quality Controlstaff. At a minimum 1 QC Technician would be required for each divisionof work, dependent on the activities & the aggressiveness of theschedule, would aid in determining how many staff members are neededat any time. QC Staff can only perform QC functions and are not allowedto be part of production.

Question 42: Will a full time qualified field technician or ITL be required for inspections ofinstallations of all items noted as special inspections?

Response: Yes.

Question 43: Please confirm that access to the jobsite for General Contractor andsubcontractors will be on 63rd and Laramie entrance and not on CentralAvenue as mentioned during the pre bid meeting.

Response: Per General Phasing Note 8 on Plan Sheet C005, “All site access shall bethrough APD Post 3 located on S. Laramie Ave.”

Question 44: Paragraph 1.02 C.1 in specification section 16620 references "Section 15484 -Fuel Dispensing and Storage System." There is no section 15484 in the biddocuments. Please confirm that a Base-mounted fuel tank oil tank is requiredfor the diesel generator, and that there is not a requirement for an additionalfuel oil storage and dispensing system.

Response: Specification section 16620 in only related to the generator. As such, abase mounted fuel tank oil tank is only required for the diesel generator.There is no fuel dispensing as part of this project.

Question 45: Paragraph 1.02 B.3 in Specification Section 16620 references a "Day Tank".Please confirm that a day tank is not required for the diesel generator.

Response: It is actually paragraph 1.01 B.3 of specification 16620 that references aday tank. A day tank is indeed required for the diesel generator. Pleasesee section 2.05 of specification 16620 for tank details.

Question 46: The section views on Drawing A401 indicate a 1-hour rating of intumescentpaint on the walls and roof deck of the new storage facility. This is anextraordinarily costly item. Please confirm it is the City's intent to useintumescent paint on the walls and roof deck of the new building.

Response: Intumescent paint shall NOT be required on the walls or roof. Metal wallpanels shall be Fire Rated Insulated Metal Wall Panels rated to 1 hour


per UL Design No. 050 requirements. Basis of Design shall beThermalSafe panels by Metl-Span. Per UL Design No. 050, panels shallbe 42” wide by min 4” thick. Thickness of Insulated Metal Wall Panels tohave a total R-Value of R-13 min. Provide additional R-13 of battinsulation between the girts. Color of metal panels to match metal wallpanels on existing adjacent AMC building. Insulated metal roof panelsare to remain as specified. However, the intumescent paint on theunderside of the roof panels is no longer required.

Question 47: Elevations on Drawing A304 refer to the lower 8' of the new storage buildingas a concrete wall. The section views on Drawing A401 show this as a fullygrouted 8" CMU wall. Please confirm this wall should be a CMU wall.

Response: Wall to be fully grouted 8” CMU wall per Structural Drawings andarchitectural sections.

Question 48: We believe some paint touch-up will be required adjacent to the replacedglazing on the second floor of the existing building, however no paintingspecification is provided. Please provide a painting specification.

Response: Paint specification provided are per Section 09900 with this addendum.Colors to match existing. (See attached)

Question 49: A specification for Gypsum Board is provided, however we could not locateany work related to gypsum board on the drawings. Please identify thegypsum board scope.

Response: It is to be used for any patchwork. Or replacement work only due todamage while removing the glazing.

Question 50: The existing window treatments at the second floor of the existing building willneed to be removed when the glazing is replaced. Should this be salvagedand re-installed or is new window treatment required in its place?

Response: Replacement of the existing window treatments is not currently part ofthe scope of the project. So, yes, they must be salvaged and re-installed.

Question 51: Please confirm the existing building must remain operational duringconstruction.

Response: Yes.

Question 52: The Airport Operations room appeared to have computer equipment locatedvery close to the glazing that will be removed and replaced. Please confirmthis equipment will remain in place during construction and that we arerequired to provide temporary partitions to protect this equipment duringglazing demolition and replacement.

Response: Any provisions to protect existing conditions to remain from damage ordirt shall be included in the bid. Contractor may negotiate phasing ormoving of specific pieces with the commissioner prior to commencingwork.


Question 53: Will additional Specifications be issued? There is no Flooring, Painting, Div10, 11 or 12 specs.

Response: There is no flooring included in the scope of the project. A specificationfor paint (09900 Paints and Coatings) has been included per thisAddendum. (See attached.) There are no Division 10 Specialties,Division 11 Equipment or Division 12 Furnishings included in the scopeof the project. If you feel a specific section is missing or needed, pleaserequest specific sections.

Question 54: What are drainage devices in the SOG at the new Vehicle Storage Buildingshown on 1/A-104? Are they trench drains as depicted on un-numbered detaillower left on S-202? The Plumbing plans call out floor drains and clean-outs.Also, there is no cathodic protection spec but CP is noted in the plumbing anddrainage spec 15400. Will a Cathodic Protection Spec be provided?

Response: The trench drains on A104 are not accurate. They have been be deleted.Drainage systems for the new building should consist of floor drains perplan sheet P101.

Question 55: Glass specifications have no performance requirements in the Specificationsection 08880. Please confirm/advise the glass to be installed on the project.For example, Solarban 60; Solarban 70; Solarban 70XL, etc etc.

Response: Specification 08800 Glazing, Paragraph 2.02 is amended to read asfollows:

2.02 TYPE AND QUALITY:

A. Insulating Glass: Low-E-Coated, Reflective, InsulatingLaminated Glass.

1. Overall Unit Thickness: 1 inch.2. Lites: 6.0 mm heat strengthened glass.3. Interspace Content: Argon.4. Low-E Coating: Pyrolytic or sputtered on second or

third surface.5. Visible Light Transmittance (VLT): 17 percent min.6. U-Factor: .29 maximum7. Solar Heat Gain Coefficient (SHGC): .18 max.8. Visible Light Reflectance Exterior: 14 percent min9. Visible Light Reflectance Interior: 29 percent min.10. Basis of Design: PPG Solarcool (2) Solarblue +

Solarban 60 (3) Clear.Question 56: FP-001 note titled ”Criteria” states that we are to design the fire sprinkler

system based on Occupancy Hazard H3 and hydraulically designed to providea .25 gpm/sf density over 2500 sf per the Chicago Code but goes on to say..”and FM Global”. Please confirm the design is required to be per the City ofChicago Code or FM Global. If the design is to be per FM Global pleaseprovide the hazard category, data sheet corresponding to the hazard and thedensity required for the hydraulic design of the system.

Response: The project is required to meet City of Chicago Code. FM Global doesnot need to be met.


Question 57: If the intent is to design per City of Chicago design criteria (.25gpm/sf over2500 sf) and based on the note indicating the water supply is directly from theCity of Chicago water mains, then based on the average water supply fromthe City of Chicago a fire pump rated at 750 GPM at 100 Psi would besufficient for the City of Chicago design criteria noted above. Please confirmthe lower rated fire pump can be provided.

Response: Bid per Bid Documents. Fire Pump size is based on building/systemdemand. Not to exceed 135% of rated capacity of pump and no less of75% of pump capacity.

Question 58: Under the “Fire Protection Notes” on FP-001 it states we are to provide aReduced Pressure type backflow preventer, City of Chicago requires us to usea Double Detector Check for fire protection. Please confirm we are to use theDDC type backflow preventer.

Response: Yes, the Double Detector Check type backflow preventer is required.

Question 59: Spec section 15300, 2.02 paragraph (c) indicates all pipe is to be schedule 40A53 or A120. Please confirm if pipe type A135/A795 is also acceptable.

Response: Bid per Bid Documents and comply with ASTM Standards.

Question 60: Further in the spec section 15300 it references schedule 10 pipe, pleaseconfirm if schedule 10 pipe is acceptable to be used in the sprinkler system.

Response: Yes, schedule 10 black pipe is acceptable.

Question 61: Spec section 15300, 2.05 paragraph (c) indicates an Alarm Check Valve andRetard Chamber is required. We do not normally provide these in Chicagoespecially with a fire pump that has a jockey pump providing maintenancepressure. Please confirm if the alarm check valve and retard chamber isrequired.

Response: Bid per Bid Documents.

Question 62: Spec section 15300, 2.06 paragraph (4) is calling for an 8” wall mountedpressure recorder. The pressures in the system are obtained in the digitaldisplay of the fire pump controller and can be downloaded through a USBport. Please confirm if the wall mounted pressure recorder is required.

Response: Bid per Bid Documents.

Question 63: Page 08710-14 of the specifications for this project lists door hardware set 1,used on all standard hollow metal doors for both the Storage Facility and theMaintenance Complex. Set calls for one mortise lockset and one heavy dutypush bar exit device. Please clarify desired lockset function and which doorsare receiving the mortise lockset vs. the exit device.

Response: Hardware for the new storage facility is specified under TechnicalSpecification, Section 13125-17. Technical Specification, Section 08710-14 is only for the existing building renovation. All doors should haveExit Devices on interior side of the door with Lever Trim on opposite


side and a keyed night latch. Storeroom lockset function.

Question 64: Does the Buy American Act need to be met?

Wind speed will be 90 mph, not 75 as shown on S001?

Live load 20 not 15?

2.3 N in PEMB specs does not apply since panels are insulated?

Can roof panels be 40” or 42” wide?

Can wall panels be 40” wide?

Are roof curbs required with no units on roof?

Please provide the collateral load required.

Please provide gauge of steel on roof & wall panels for the outside skin andfor the inside skin.

Are the doors to follow 13125 spec or 08100?Response: The Buy American Act needs to be met. Wind Speed and Live Load as

indicated on the drawings are per the City of Chicago Code and shallremain as is. Regarding the Wall and Roof R-Values, see response toQuestion 28. Roof R-Value should be R-30 per the drawings, not asspecified in Paragraph 2.3.N.1. Panels are to be 42” wide to meet firerating specified in Question 28. Roof curbs are not required on the NewBuilding. Should something change during construction to requirethem, they should be provided as specified. Exterior and Interior Gaugesteel to be 26 GA. Doors for PEMB should follow 13125. TechnicalSpecification, Section 08100 is for the existing building renovation.

Question 65: Glazing Spec 08800 calls for 1” Insulated Glass, what is the makeup of this?Ie; 1" IG - 1/4" Clear Low E #2 - Tempered - airspace - 1/4" Clear Tempered

Response: Specification 08800 Glazing, Paragraph 2.02 is amended to read asfollows:


B. Insulating Glass: Low-E-Coated, Reflective, InsulatingLaminated Glass.

1. Overall Unit Thickness: 1 inch.2. Lites: 6.0 mm heat strengthened glass.3. Interspace Content: Argon.4. Low-E Coating: Pyrolytic or sputtered on second or

third surface.5. Visible Light Transmittance (VLT): 17 percent min.6. U-Factor: .29 maximum7. Solar Heat Gain Coefficient (SHGC): .18 max.8. Visible Light Reflectance Exterior: 14 percent min


9. Visible Light Reflectance Interior: 29 percent min.10. Basis of Design: PPG Solarcool (2) Solarblue +

Solarban 60 (3) Clear.

Question 66: Will the General Contractor require that “ALL” contractor employees attend theGeneral Contractor Safety Training and Drug/Alcohol testing prior to workingon site?

Response: This is a question for the General Contractor on the project. All labormust meet the requirements as outlined in the Contract Documents.

Question 67: Please confirm if the Pre-engineered Metal Building contractor will be requiredto provide professional liability insurance since they will be providing structuraldesign of pre-engineered metal building. If professional liability insurance isrequired, please provide the required limits of the policy.

Response: The Professional Liability Insurance requirements are found in Part 1 ofthe IFB Specification under Insurance Requirements, page S2-2,Professional Liability.

Question 68: Please clarify if a more standard profile of the insulated metal panel can beused (i.e. Metl-Span Lt. Mesa which has a much less reveal) in lieu of thepanel profile specified. In order to get a minimum R-26 rating for the wallpanel in the basis of design profile specified the panels are required to be 6”thick, whereas the Metl-Span Lt. Mesa panel can be 4” thick to achieve theminimum R-26 rating.

Response: The wall panel requirements have been modified per Addendum 2 toachieve the required fire rating.

Question 69: Please clarify what if any collateral load is required on the building. Thespecifications indicate to see the drawings, however nothing is listed on thedrawings.

Response: 5 psf was used in the calculations.

Question 70: At the prebid meeting it was mentioned that daytime hours can be utilized onthis project as long crane heights are below a certain height. Please clarifywhat the maximum boom height of the crane (or other equipment) is in orderto work standard daytime hours for the erection of the Pre-engineered MetalBuilding.

Response: See attached Addendum Documents.

Question 71: Please clarify if the completion date of the Pre-engineered Metal Building canbe moved out an additional 60-90 days minimum due to the fact that PEMB’shave long lead times and roof and wall panels on the building cannot bestarted until after the masonry wall is installed around the perimeter of thebuilding (then wall panels are installed, then roof panels are installed last).

Response: Based on similar installations, the Vehicle Storage Facility can becompleted in the time allotted per the documents. Upon Contract award,


the Contractor will be required to submit a baseline schedule per thecontract, with material lead times built in.

Question 72: What is the correct eave height? Elevations show 32’-0” but the section 1/401is calling out 31’-0”

Response: 32’-0”

Question 73: I do not see a roof collateral load shown on the chart under design criteria onSheet S001 for user imposed loads such as lights, sprinker piping, otherhanging loads, etc. What psf should be added to the structure design for theroof collateral load?

Response: 5 psf

Question 74: Detail 2/S202 states that the panel cannot laterally load the masonry wall.Can the metal panel wall put vertical load into the masonry? If not, a veryspecial design will be required to ‘hang’ the wall panels above the masonry.

Response: The wall panels are intended to be separated from the wall as shown onthe detail per plan sheet S202. Typically, the metal panels are supportedby the girts. Rods are used by PEMB manufacturers to provide verticalsupport for the girts.

Question 75: On the floor plan on Drawing A104 there are 8 lines running north-southbetween approximately Column Lines B and E. Please identify what theselines represent.

Response: These are trench drains from a previous design and should not be there.Provide floor drains per Plan Sheet P101.

Question 76: Please refer to the Project Overview description bullet point 1, which states to"Demolish and install revised mechanical, electrical, plumbing, and fireprotection systems in the existing AMC." No work for plumbing or fireprotection is shown on the drawings in the existing AMC building. Pleaseconfirm there is no plumbing or fire protection work to be done in the existingAMC building.

Response: There is no fire protection work at the existing AMC. The only plumbingwork would be the de-icing systems.

Question 77: Please provide details of the composition of the current roof that is beingreplaced on the existing building.

Response: See Plan Sheet A103. Details are reproduced from as-builts provided byCDA. It is believed to be a PVC Membrane.

Question 78: Please confirm the current roof that is being replaced on the existing buildingdoes not contain asbestos.


Question 79: Specification Section 07542-2.1A specifies a PVC sheet roofing. Part 2.2A ofthe same sections specifies a CSPE sheet. Please clarify which is to beprovided.

Response: PVC.

Question 80: Please clarify if the fascia and gravel stops on the existing building are to bereplaced and if so provide specifications. Section 076200 lists these items butdoes not provide details.


Response: Details are shown on Plan Sheet A103. The intent is to match existing.

Question 81: Please confirm if contractor QA Program Administrator and Quality ControlTechnicians will be required full time on the project for the duration. Will theseindividuals be able to perform production functions or only be allowed to solelyperform QC functions?

Response: The QA Program Administrator does not need to be onsite full time. TheQuality Control Techs are required to be onsite full time. QC Staff canonly perform QC functions and are not allowed to be part of production.

Question 82: Please provide Commissioner's expectation for quantity of Quality Controlstaffing chart that is to ultimately be approved by Commissioner. Pleaseconfirm if these individuals will be allowed to also perform production work.

Response: Every division of work is required to be inspected by Quality Controlstaff. At a minimum 1 QC Technician would be required for each divisionof work, dependent on the activities & the aggressiveness of theschedule, would aid in determining how many staff members are neededat any time. QC Staff can only perform QC functions and are not allowedto be part of production.

Question 83: Will a full time qualified field technician or ITL be required for inspections ofinstallations of all items noted as special inspections?

Response: Yes.

Question 84: Detail 2A and Detail 5 on Drawing S202 call for a waterproofing membrane onthe stem wall. No specification is provided for waterproofing. Please providethis specification.

Response: Refer to Addendum documents. Specification 07110 BituminousDampproofing is provided. (See attached)

Question 85: Detail 2A on Drawing S202 shows a waterproofing membrane on the stemwall where the exterior grade is higher than the interior slab on grade. Detail1A on Drawing S202 shows a similar condition with the exterior grade beinghigher than the interior slab on grade, but there is no waterproofing shown.Please confirm waterproofing is required at all foundation walls where theinterior slab on grade is lower than the exterior grade.

Response: Confirmed, it is required where interior slab on grade is lower than theexterior grade.

Question 86: Drawing A304 shows the eave height as 32’-0” but the Drawing A401 shows itas 31’-0”. Please clarify the correct eave height.

Response: 32’-0”

Question 87: The design criteria chart on Drawing S001 does not show roof collateral loadsfor user imposed loads such as lights, sprinkler piping, other hanging loads,etc. Please indicate the psf that should be added to the structural design forthe roof collateral load.

Response: 5 psf.

Question 88: Detail 2 on Drawing S202 states that the metal panel cannot laterally load themasonry wall. Please clarify if it is permissible for the metal panel wall to putvertical load into the masonry.

Response: The wall panels are intended to be separated from the wall as shown onthe detail per plan sheet S202. Typically the metal panels are supportedby the girts. Rods are used by PEMB manufacturers to provide vertical


support for the girts.

Question 89: Schedule F requires us to list all the firms that quoted us, which is very difficultto prepare in a manner that is complete and accurate at bid time. Pleaseconfirm it is acceptable to provide Schedule F within 24 hours of bid date.

Response: In the IFB Specification Part 1, Special Conditions RegardingDisadvantaged Business Enterprise Commitment, page S5-20, Section1.6.4, Schedule F: Report of Subcontractors Solicitations, “AllBidders/Proposers must submit, together with their bid/proposal, acompleted Schedule F report containing information on allsubcontractors, DBEs and non-DBEs, solicited for participation in thecontract.”

Question 90: Please specify if Kohler will be an acceptable manufacturer for the proposedgenerator.

Response: Any and all materials and equipment not shown on the approved listmust be approved by the Commissioner, and must go through theSubstitution of Materials guidelines as outlined in the Specifications.

Question 91: Since this project is within City limits, is it required to comply with the the long-standing Building Wrecking/Demolition Pest Control Ordinance (§ 13-32-235)that was passed in 2001, and the New Construction Site Rodent AbatementOrdinance (§ 13-32-140) passed in 2015?

Response: All applicable permitting requirements must be met.

Question 92: What is the storefront metal finish?

Response: Fluorocarbon coating system. See specification, section 08411-7. (Seeattached)

Question 93: What is the glass type for the storefront?

Response: See response to question 65 of this addendum.

Question 94: This project has existing utilities that will need to be located by potholing toavoid conflicts with systems being installed under this contract. Pleasehighlight the any areas where conflicts may be possible so all bidders mayprovide the proper amount of potholing in their proposals.

Response: The locations of existing utilities are shown on the contract plans basedon available information. Bidders shall make their own determinationsas to the amount of potholing required based on the existing and


proposed utility locations shown in the contract plans.

Question 95: There is not an intumescent product that has an approved design to achieve a1 hour rating on Roof decks or walls. Please advise a different type offireproofing or exclude from project.

Response: Addendum 2 will remove the requirement for intumescent paint.Reference these changes.

Question 96: Please advise if there will a core sample and it’s make, as well, as pictureshighlighting the existing roof replacement area will be provide in theaddendum. Several roofers have requested access to the roof and sampling.

Response: There was a site visit that took place on March 21 for contractors toreview the existing conditions. Cores will not be made available prior tobidding.

Question 97: The spec is lacking in regard to the roof system. Please ask the architect toprovide a detail indicating all components of the new roof system. Here ishow I am currently interpreting the new roof system:

1. 5/8” Type X substrate board mechanically fastened to metal deck2. Rigid insulation (flat stock with tapered saddles or completely tapered?

Minimum R-Value? Mechanically attached or adhered?)3. 80 mill white PVC mechanically attached.4. Walk pad where shown on plans.

Response: See revised Sheet A103 included in this addendum for revised detailsshowing the substrate board. The interpretation above is correct. Theroof insulation may include flat stock if the required slopes to drains canbe met. The thickness is intended to match what is currently installedwhich is believed to be a minimum of 6”.

Question 98: There are various notes on plans regarding day work vs. night work. Forinstance - Spec Section 01 01 0 - 3 shows Night work as being from 10:30PMto 6:00 AM. On Sheet C002 – General notes – Airport Operations Note 13 C.defines night work as work between the hours of 9:00 PM to 6:00 AM. Will allwork need to be done after hours? Or will some work be allowed duringnormal working hours? Furthermore, what are the hours of nightwork?

Response: Normal night work hours should be considered 10:00PM to 6:00AM. Allwork must be coordinated with CDA, but for bidding purposes it shouldbe anticipated that any work involving a crane will be performed at night,and all other work will be during daytime hours.

Question 99: At the prebid, it may have been mentioned that CDA will escort contractorforces from central avenue access points to the work area. Who will beresponsible for the cost and coordination for CDA escorting vehicles everyday. Are there times of the day that CDA will be available to escort? Pleaseprovide any applicable restrictions regarding CDA Escorts into the jobsite.

Response: Escorts will be provided by the CDA as needed at no cost to thecontract. It will be the Contractor’s responsibility to coordinate all workwith CARE Plus and CDA to schedule escorts as needed.

Question 100: Section M-103 -10, 3.07B states all vehicles and construction equipmentoperating inside the active AOA, but outside of the designated haul roadsmust be escorted by CDA personnel, who will maintain radio contact with AirTraffic Control Tower (ATCT). Who is responsible for paying for this escort?


END OF ADDENDUM NO. 3CITY OF CHICAGO JAMIE L. RHEEDEPARTMENT O PROCUREMENT SERVICES CHIEF PROCUREMENT OFFICER

Response: Escorts will be provided by the CDA as needed at no cost to thecontract. It will be the Contractor’s responsibility to coordinate all workwith CARE Plus and CDA to schedule escorts as needed.

Question 101: The existing installed Temperature Control system at the facility is provided byInspiring Technologies. Are we to tie the new temperature control systems forthis project into that existing system, or is this project to have standalonecontrols? If we are to tie into the existing system, please indicate whichsystems will need tied in, and who is responsible for the programing into theexisting system.

Response: All new temperature control systems are to be integrated into theexisting system. It is the responsibility of the contractor and/or themanufacturer of the new controls to program into the existing system.

Question 102: Per drawings C004 and C007 Construction Phasing Plan, there are “notes &restrictions” that have specific dates with associated liquidated damages. Thephase completion dates that are listed have long passed. Please clarify therequired completion dates, and / or confirm that no General Contractor will beheld to the dates listed under “notes and restrictions,” numbers 3, 4, and 5shown on sheets C004 & C007.

Response: These dates still hold, disregard the year. As noted, a detailed phasingplan must be submitted and approved by CDA.

Question 103: Part A.2 of the Section 2 Insurance Requirements require separation ofinsureds. Please confirm each insured is not required to have a separate limiton the policy.

Response: The separation of insureds clause is a policy provision in generalliability policies. With regard to the question of separate limits, thegeneral contractor and any subcontractor will have separate policies asapplicable.

Question 104: Part A.2 of the Section 2 Insurance Requirements states "if a generalaggregate applies to products/completed operations the general aggregatelimits must apply per project." Please consider removing this requirement.

Response: Request denied. This is on “if applicable” basis.

CHICAGO DEPARTMENT OF AVIATION/ BITUMINOUS DAMPPROOFING

MIDWAY INTERNATIONAL AIRPORT

AIRPORT MAINTENANCE COMPLEX IMPROVEMENTS

M8119.15-00

ISSUED FOR BID, FEBRUARY 27, 2018

07110-1

BITUMINOUS DAMPPROOFING

SECTION 07110

PART 1 GENERAL

1.01 SECTION INCLUDES:

A. Work under this Section is subject to the requirements of the Contract Documents.

B. Furnish and install Damp proofing as shown on the Drawings and as specified herein, including but not limited to the following:

Cold applied asphalt

1.02 RELATED WORK:

A. As specified in the following divisions:

1. Division 2 - Site Work 2. Division 3 - Concrete 3. Division 4 - Masonry 4. Division 5 - Metals 5. Division 6 - Wood and Plastics 6. Division 7 - Thermal and Moisture Protection

1.03 REFERENCES:

A. ASTM D41 - Asphalt Primer Used in Roofing and Waterproofing.

B. ASTM D43 - Creosote Primer Used in Roofing, Dampproofing and Waterproofing.

C. ASTM D 449 - Asphalt Used in Dampproofing and Waterproofing.

D. ASTM D 1187 - Test Method for Asphalt-Base Emulsions for Use as Protective Coatings for Metal.

E. ASTM D 2822 - Asphalt Roof Cement.

F. ASTM D 3747 - Emulsified Asphalt Adhesive for Adhering Roof Insulation.

G. NRCA (National Roofing Contractors Association) - Waterproofing Manual.




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1.04 SUBMITTALS:

A. Submit the following

1. Shop Drawings a. Manufacturer's installation instructions - Indicate special

procedures and perimeter conditions requiring special attention.

2. Samples and/or Product Data a. Product Data

(1) Provide properties of primer, bitumen, and mastics.

3. Test Reports a. Test material samples in accordance with [ASTM D449.]

[ASTM D450.] 4. Manufacturer’s Certification

a. Certify that products meet or exceed the specified requirements.

5. Operation and Maintenance Manuals

1.05 QUALITY CONTROL:

A. Contractor Qualifications - Installation of Dampproofing and accessories must be performed only by a qualified installer. The term qualified means experienced in performing the Work required by this Section. The qualified installer must have a minimum of five (5) years documented experience on Projects similar in size and scope to this Project. The installer must submit evidence of such qualifications upon request by the Commissioner.

B. Perform Work in accordance with the latest edition, of the appropriate divisions, of the following:

1. National Roofing Contractors Association (NRCA), Waterproofing Manual.

1.06 DELIVERY, STORAGE AND HANDLING:

A. Materials must be delivered to the Project in sealed containers bearing Manufacturer's name and material identification. Materials must be stored in strict accordance with the Manufacturer's printed directions, copies of which must be furnished to the Commissioner.

B. Protect materials against damage from mechanical abuse, plaster, salts, acids, staining and other foreign matter by an approved means during transportation, storage and erection and until completion of




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construction work. All unsatisfactory materials must be removed from the premises, and all damaged materials replaced with new materials.

C. Access and Storage Areas

1. All access routes and storage areas must be subject to the approval of the Commissioner in order to reduce interference with Airport Operations.

1.07 WARRANTIES AND GUARANTEES:

A. The following materials have special Manufacturer’s Warranties for the periods listed with each item, which may originate, in part or in whole, with the manufacturer or the fabricator and such warranties must be passed through the Contractor to the Chicago Department of Aviation;

B. The Contractor must repair or replace defective materials and workmanship during the Contract Period and for 1 year from the date of Substantial Completion of the Project. Defective material and workmanship include, but are not limited to, the following:

1. Leaks due to failures in the membrane.

1.08 EXTRA MATERIALS AND SPARE PARTS:

A. (NOT USED)

1.09 ENVIRONMENTAL REQUIREMENTS:

A. Maintain materials and surrounding air temperature to minimum 40 degrees F (5 degrees C) 24 hours prior to, during application until membrane has cured.

1. Do not apply membrane when the ambient temperature is below 40 degrees F.

1.10 SPECIAL REQUIREMENTS:

A. Coordination - Coordinate Work of this Section with related Work specified in other divisions/Sections of the Contract Documents.

B. Job Condition

1. Foundation Wall - Two (2) coatings of asphalt dampproofing. 2. Subgrade Tunnel - Patch existing dampproofing with two (2)

coatings of new asphalt dampproofing or other compatible materials at disturbed areas.

PART 2 PRODUCTS




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2.01 ACCEPTABLE MANUFACTURERS:

A. Products of one of the following Manufacturers will be acceptable:

1. Advanced Coatings, Inc., Midland, Ontario L4R 4P4 2. Bakor Inc., Mississauga, ON, L4Z 1P4 3. Karnak Corporation, Clark, NJ 07066 4. Lambert Corporation of Florida, Inc., Orlando, FL 32805 5. Mar-Flex Company, Middletown, OH, 45042 6. Tremco, Beachwood, OH44122 7. W.R. Meadows, Inc.; Elgin, IL 60121.


A. For purposes of designating type and quality of the product specified, Drawings and Specifications are based on the products of (name of company and location).

2.03 MATERIAL:

A. Cold Asphaltic

1. Asphalt Emulsion must be Conforming to ASTM D 3747. 2. Asphalt Primer must be ASTM D 41, compatible with substrate. 3. Asphalt Cement must be ASTM D 2822 Type I.

PART 3 EXECUTION

3.01 INSPECTION:

A. Before commencing installation, examine substrate surfaces to determine that they are free of conditions which might be detrimental to proper and timely completion of the Work. Start of Work will indicate acceptance of the substrate.

B. Verify job site conditions prior to delivery and installation of any of the items. Any discrepancies or variations in related Work that may affect the proper installation of the items will be corrected to the satisfaction of the Commissioner before any installation work is started.

1. Verify substrate surfaces are durable, free of matter detrimental to adhesion or application of dampproofing system.

2. Verify items which penetrate surfaces to receive dampproofing are securely installed.




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3.02 PREPARATION:

A. Protect adjacent surfaces not designated to receive dampproofing.

B. Clean and prepare surfaces to receive dampproofing in accordance with Manufacturer's instructions.

C. Do not apply dampproofing to surfaces unacceptable to Manufacturer and/or installer.

D. Apply mastic to seal penetrations, small cracks, or minor honeycomb in substrate.

3.03 APPLICATION:

A. Prime surfaces in accordance with NRCA - Waterproofing Manual.

B. Apply cold bitumen per manufacturer’s installation instructions.

C. Apply bitumen at a temperature limited by equiviscous temperature (EVT) plus or minus 25 degrees F (14 degrees C); do not exceed finish blowing temperature for four hours.

D. Apply bitumen in two coats, continuous and uniform, at a rate recommended by manufacturer’s installation instructions.

E. Apply from 2 inches (50 mm) below finish grade elevation to top of footings.

F. Seal items projecting through dampproofing surface with mastic. Seal watertight.

G. Immediately backfill against dampproofing to protect from damage.

3.04 BACKFILL AND COVERAGE

A. Verify the UV resistance of the coating material and backfill or cover with protective panels within the time required by the manufacturer to prevent damage to the coating material from UV light.

B. Provide protection as necessary during backfilling operation to insure that dampproofing coating is not punctured or damaged.

3.05 GENERAL CLEAN-UP:

A. All rubbish and debris resulting from the Work of this Section must be collected, removed from the site and disposed of legally.




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B. All work areas must be left in a broom clean condition.

END OF SECTION 07110

CHICAGO DEPARTMENT OF AVIATION/ ALUMINUM-FRAMED STOREFRONTS



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08411-1

ALUMINUM-FRAMED STOREFRONTS

SECTION 08411

PART 1 GENERAL



B. Furnish and install Aluminum Entrances and Storefronts as shown on the Drawings and as specified herein, including but not limited to the following:

1. Exterior aluminum storefronts assembly

2. Shims, clips, fasteners, rough hardware, and all other related accessories required to install window wall and entrances.

C. Install products and materials as shown on the Drawings and as specified herein.

1.02 RELATED WORK:


1. Division 3 - Concrete

2. Division 4 - Masonry

3. Division 5 - Metals

4. Division 6 - Wood and Plastics

5. Division 7 - Thermal and Moisture Protection

6. Division 9 - Finishes

7. Division 16 - Electrical

1.03 REFERENCES:

A. AA (Aluminum Association) - Designation System for Aluminum Finishes.




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B. AAMA - Metal Curtain Wall, Window, Store Front and Entrance - Guide Specifications Manual.

C. AAMA - Curtain Wall Manual #10 - Care and Handling of Architectural Aluminum from Shop to Site.

D. AAMA 501.2 - Methods of Test for Metal Curtain Walls.

E. AAMA 603.8 - Performance Requirements and Test Procedures for Pigmented Organic Coatings on Extruded Aluminum.

F. AAMA 605.2 - Specification for High Performance Organic Coatings on Architectural Extrusions and Panels.

G. AAMA 606.1 - Specifications and Inspection Methods for Integral Color Anodic Finishes for Architectural Aluminum.

H. AAMA 607.1 - Specifications and Inspection Methods for Clear Anodic Finishes for Architectural Aluminum.

I. AAMA 608.1 - Specification and Inspection Methods for Electrolytically Deposited Color Anodic Finishes for Architectural Aluminum.

J. AAMA FC-1 - Field Check of Metal Curtain Walls for Water Leakage.

K. AAMA SFM-1 - Aluminum Storefront and Entrance Manual.

L. ANSI A117.1 - Safety Standards for the Handicapped.

M. ASCE 788 - Calculation of Wind Loads.

N. ASTM A 36/A 36M - Structural Steel.

O. ASTM A 123 - Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products.

P. ASTM A 446/A 446M - Steel Sheet, Zinc-Coated (Galvanized) by the Hot-Dip Process, Structural (Physical) Quality.

Q. ASTM B 209 - Aluminum and Aluminum-Alloy Sheet and Plate.

R. ASTM B 209M - Aluminum and Aluminum-Alloy Sheet and Plate [Metric].

S. ASTM B 221 - Aluminum-Alloy Extruded Bar, Rod, Wire, Shape, and Tube.




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T. ASTM B 221M - Aluminum-Alloy Extruded Bar, Rod, Wire, Shape, and Tube [Metric].

U. ASTM E 283 - Rate of Air Leakage Through Exterior Windows, Curtain Walls, and Doors.

V. ASTM E 330 - Structural Performance of Exterior Windows, Curtain Walls, and Doors by Uniform Static Air Pressure Difference.

W. ASTM E 331 - Test Method for Water Penetration of Exterior Windows, Curtain Walls, and Doors by Uniform Static Air Pressure Difference.

X. ASTM E 1105 - Test Method for Field Determination of Water Penetration of Installed Exterior Windows, Curtain Walls, and Doors by Uniform or Cyclic Static Air Pressure Difference.

Y. SSPC (Steel Structures Painting Council) - Paint 20 Zinc Rich Coating.

Z. SSPC (Steel Structures Painting Council) - Paint 25 Red Iron Oxide, Zinc Oxide, Raw Linseed Oil and Alkyd Primer (Without Lead and Chromate Pigments).

1.04 SUBMITTALS:


1. Shop Drawings

a. Complete shop details showing all components and details of fabrication, assembly and installation for window walls, including method of glazing.

(1) Shop details must show profile of components, thickness of metal, reinforcing, related accessories and method of anchoring.

b. Engineering calculations verifying compliance with City of Chicago Building Code Requirements for wind load, and other data substantiating the manufacturer's performance characteristics will be submitted with shop Drawings.

2. Samples and/or Product Data

a. Product Data

(1) Must include component dimensions, describe components within assembly, anchorage and




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08411-4

fasteners, glass and infill, door hardware, and internal details.

b. Samples

(1) Typical vertical mullion of each type of window wall assembly specified.

(2) Typical corner assembly of each type of entrance door specified.

(3) All samples submitted must have finish as specified.

3. Test Reports

a. Submit test reports necessary to show compliance with the Contract Documents.

(1) Test reports certified by an independent test laboratory must be made available when so required by the Commissioner.

4. Manufacturers Certification

a. Submit certification that products meet or exceed the specified requirements.

(1) Manufacturer must be required to submit evidence of having fabricated window wall assemblies and entrance doors of comparable size and type for the past five (5) years.

5. Operation and Maintenance Manuals

a.


A. Contractor Qualifications: Installation of aluminum entrances and storefronts must be performed only by a qualified installer. The term qualified means experienced in performing the Work required by this Section. The qualified installer must have a significant number of documented experience on Projects similar in size and scope to this Project. The installer must submit evidence of such qualifications upon request by the Commissioner.





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1. AAMA SFM-1 and AAMA - Metal Curtain Wall, Window, Storefront and Entrance - Guide Specifications Manual.

2. Conform to requirements of ANSI A117.1.

C. The entire assembly of the storefronts and entrances included under this Section must be provided as a "single source" responsibility. The Contractor must be responsible for providing a complete weather tight framing system including closures between the structural and masonry elements of the building and a uniform finish and color match of all components.


A. Protect finished aluminum surfaces with wrapping and/or strippable coating. Do not use adhesive papers or sprayed coatings which bond when exposed to sunlight or weather.

B. Materials must be delivered to the Project bearing Manufacturer's name and material identification. Materials must be stored in strict accordance with the Manufacturer's printed directions, copies of which must be furnished to the Commissioner.

C. Protect materials against damage from mechanical abuse, plaster, salts, acids, staining and other foreign matter by an approved means during transportation, storage and erection and until completion of construction work. All unsatisfactory materials must be removed from the premises, and all damaged materials replaced with new materials.

D. Access and Storage Areas



A. The following materials have special Manufacturer’s Warranties for the periods listed with each item, which may originate, in part or in whole, with the manufacturer or the fabricator and such warranties must be passed through the Contractor to the Department;

1. Warranty will include coverage of the complete system for failure to meet specified requirements.

2. Provide five (5) year Manufacturer warranty for glazed units.




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B. The Contractor must repair or replace defective materials and workmanship during the Contract Period and for five (5) years from the date of Substantial Completion of the Project. Defective material and workmanship include, but are not limited to, the following:

1. Correct defective work within warranty period after Substantial Completion.

2. Leaks, broken seals, cracked glazing, faulty sealant.


A. (Not Used)


A. Maintain sealants and surrounding air temperature to minimum 40 degrees F (5 degrees C) prior to, during, and 48 hours after completion of installation.

1. Do not install sealants when the ambient temperature is below 40 degrees F.


A. Field Measurements - Before proceeding with the fabrication of the aluminum entrances and storefront work, the supplier/installer must verify all dimensions and take such measurements as are required for proper fabrication and erection of the Work.

B. Coordination -Coordinate Work of this Section with related Work specified in the other divisions/Sections of the Contract Documents.

C. Dissimilar materials - Aluminum surfaces must be protected from direct contact with dissimilar materials as follows:

1. Dissimilar metals other than stainless steel, must be painted with a heavy brush coat of zinc Chromate paint, or must be separated from the aluminum by a non-absorptive tape or gasket.

2. Aluminum surfaces in contact with mortar, concrete, or other masonry materials must be given one heavy brush coat of zinc Chromate paint.




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PART 2 PRODUCTS



1. Amarilite Architectural Products, Atlanta, GA 30331.

2. Kawneer Co. Inc., Norcross, GA 30092, or

3. Vistawall Architectural Products, Terrell, TX 75160.

4. Tubelite, Inc., Walker, MI 49544.

5. EFCO, Monett, MO 65708


A. For purposes of designating type and quality of the product specified, Drawings and Specifications are based on the products of (company’s name and location).

2.03 WINDOW WALLS:

A. Exterior aluminum window wall Basis of Design is Kawneer Company - Trifab-451T framing system.

B. Thermal Break with two (2) 1/4" (6.4 mm) separations consisting of a two-part chemically curing, high-density polyurethane, which is mechanically and adhesively joined to aluminum storefront sections. Thermal break shall be designed in accordance with AAMA TIR-A8 and tested in accordance with AAMA 505.

1. Extrusions must be 6063-T5 alloy and temper (ASTM B 221 alloy G.S. 10A-T5).

2. Fasteners, where exposed, must be aluminum or stainless steel in accordance with ASTM A 164.

3. Perimeter anchors must be aluminum or steel providing the steel in properly isolated from the aluminum.

4. Glazing gaskets must be EPDM elastomeric extrusions.

C. Finish




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1. All exposed aluminum surfaces must be factory finished fluorocarbon (vinylidene fluoride) coating system, with minimum 70% resin solids.

2. Products of one of the following Manufacturers will be acceptable:

a. "Duranar" - PPG Industries, Inc., Springdale, PA 15144.

b. "Fluorpon" - DeSoto Inc.,

c. "Durlite" - DuPont Co., Wilmington, DE 19880.

d. "Nubelar" - The Glidden Co., Chicago, IL 60607.

3. All edges and surfaces must be thoroughly cleaned, etched and given a Chromate conversation pre-treatment prior to application of an epoxy prime coat.

4. The finish coating must be not less than the Manufacturer's recommended dry film thickness. Color must be selected by the Commissioner.

2.04 FABRICATION:

A. The framing system must provide for flush glazing on all sides with no projecting stops. Vertical and horizontal framing members must have a nominal face dimension of 2". Overall depth must be 4-1/2" with a 1-5/16" glass pocket width. Entrance framing members must be compatible with glass framing in appearance. All single acting entrance frames will include the Sealair positive barrier weathering.

PART 3 EXECUTION

3.01 INSPECTION:

A. Before commencing installation, examine substrate surfaces to determine that they are free of conditions which might be detrimental to proper and timely completion of the Work. Start of Work must indicate acceptance of the substrate.

3.02 INSTALLATION (WINDOW WALL):

A. Window wall assembly must be installed by an experienced erector, recommended by the window wall Manufacturer. The Manufacturer must provide a qualified field representative to work closely with the erector to assure that proper installation procedures are followed.




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B. It must be the responsibility of the Contractor to correct any construction discrepancies before erection and to coordinate all trade tolerances, and to coordinate the Work of all other related trades required for a complete installation.

C. Window wall assembly must be plumb, level and true within following tolerances:

1. Maximum deviation from true vertical or horizontal must be _” any member.

2. Maximum offset from true alignment between consecutive members in line, end-to-end must be 1/16".

3. Maximum deviation of outside face of window members in any opening, must be 1/16" from the plane of the window glass.

4. Maximum variation from square of any window opening must be 1/16".

D. All glass framing must be set in correct locations as shown in the details and must be level, square, plumb and in alignment with other work in accordance with the Manufacturer's printed installation instructions and approved shop Drawings. All joints between framing and the building structure must be sealed in order to secure a watertight installation.

3.03 CLEANING:

A. After installation the Contractor will adequately protect exposed portions of aluminum surfaces from damage that may result from grinding and polishing compounds, plaster, lime, acid, cement, or other contaminants.

B. The Contractor must be responsible for removal of protective covering and cleaning of the aluminum. All aluminum must be thoroughly cleaned with plain water, or water with soap or household detergent. The Contractor must be held responsible for damages resulting from the use of other cleaning materials.







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CHICAGO DEPARTMENT OF AVIATION/ GLAZING



M8119.15-00


08800-1

GLAZING

SECTION 08800

PART 1 GENERAL



B. Furnish and install Glazing work as shown on the Drawings and as specified herein, including but not limited to the following:

1. Sizes of lites must be obtained from actual field dimensions.

2. Type, thickness and quality must be as indicated on the Drawings and/or specified.

3. Glazing materials including compounds, blocks, preformed tapes, sealants, etc., must be as indicated on the Drawings and/or specified.

C. Install products and materials (furnished in other Sections) as shown on the Drawings and as specified herein, including but not limited to the following:

1.

1.02 RELATED WORK:


1. Division 3 - Concrete

2. Division 4 - Masonry

3. Division 5 - Metals

4. Division 6 - Wood and Plastics

5. Division 7 - Thermal and Moisture Protection

6. Division 9 - Finishes

7. Division 16 - Electrical




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1.03 REFERENCES:

A. ANSI Z97.1 - Safety Performance Specifications and Methods of Test for Safety Glazing Used in Buildings.

B. ASTM C 669 - Glazing Compounds for Back Bedding and Face Glazing of Metal Sash.

C. ASTM C 804 - Use of Solvent-Release Type Sealants.

D. ASTM C 864 - Dense Elastomeric Compression Seal Gaskets, Setting Blocks, and Spacers.

E. ASTM C 920 - Elastomeric Joint Sealants.

F. ASTM C 1036 - Flat Glass.

G. ASTM C 1048 - Heat-Treated Flat Glass - Kind HS, Kind FT Coated and Uncoated Glass.

H. ASTM C 1172 - Laminated Architectural Safety Glass.

I. ASTM E 84 - Surface Burning Characteristics of Building Materials.

J. ASTM E 283 - Test Method For Rate of Air Leakage Through Exterior Windows, Curtain Walls and Doors.

K. ASTM E 330 - Structural Performance of Exterior Windows, Curtain Walls, and Doors by Uniform Static Air Pressure Difference.

L. ASTM E 546 - Test Method For Frost Point of Sealed Insulating Glass Units.

M. ASTM E 576 - Test Method for Dew/Frost Point of Sealed Insulating Glass Units in Vertical Position.

N. ASTM E 773 - Test Method for Seal Durability of Sealed Insulating Glass Units.

O. ASTM E 774 - Sealed Insulating Glass Units.

P. FGMA - Glazing Manual.

Q. FGMA - Sealant Manual.

R. Laminators Safety Glass Association - Standards Manual.

S. SIGMA - Sealed Insulated Glass Manufacturers Association.




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T. Federal Specification DD- 451d, DD-G-1403B, and L-P-3910 Type III, latest edition.

1.04 SUBMITTALS:


1. Shop Drawings

a. Glazing details showing the use, size and shapes of tapes, gaskets, clips, snap on stops, sealants and/or glazing compounds, all in conformance with the specified requirements and the details shown including the recommended installation details of the Manufacturer and the "Referenced Standards" for

(1) Reglazing existing steel sash.

(2) Glazing new steel sash.


a. Product Data

(1) Provide structural, physical and environmental characteristics, size limitations, special handling or installation requirements.

(2) Provide chemical, functional, and environmental characteristics, limitations, special application requirements. Identify available colors.

b. Samples

(1) Four (4) of each type of glass [and plastic lite] (6" x 6" min. size).

(2) Four (4) tubes of each type of glazing compound and sealant.

(3) Four (4) of each type of spacer blocks, tapes, gaskets, and other related accessories required for a complete glazing installation.

3. Tests Reports

a. Submit test reports necessary to show compliance with the Contract Documents.

(1) Plastic lite material must meet or exceed the requirements established by ASTM D 1044, 500 g, 100 revolutions of 2% haze or less, for abrasive resistance.




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4. Manufacturer’s Certification


(1) Each lite of glass must bear a label certifying as to type, thickness and manufacturer.

(2) These labels must not be removed until lites have been inspected and approved by the Commissioner.

B. Mockup

1. Provide mockup of exterior storefront including glass in location as directed by the Commissioner.

2. Mockup may remain as part of the Work under the conditions that all work complies with the requirements of the Contract Documents, all applicable codes and ordinances and has been approved to remain as part of the Work, by the Commissioner.


A. Contractor Qualifications: Installation of glazing must be performed only by a qualified installer. The term qualified means experienced in performing the Work required by this Section. The qualified installer must have a significant number of years documented experience on Projects similar in size and scope to this Project. The installer must submit evidence of such qualifications upon request by the Commissioner.


1. FGMA Glazing Manual.

2. FGMA Sealant Manual.

3. SIGMA and Laminators Safety Glass Association - Standards Manual for glazing installation methods.


A. Materials must be delivered to the Project in sealed containers bearing Manufacturer's name and material identification. Materials must be stored in strict accordance with the Manufacturer's printed directions, copies of which must be furnished to the Commissioner.




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B. Protect materials against damage from mechanical abuse, plaster, salts, acids, staining and other foreign matter by an approved means during transportation, storage and erection and until completion of construction work. All unsatisfactory materials must be removed from the premises, and all damaged materials replaced with new materials.




A. The following materials have special Manufacturer’s Warranties for the periods listed with each item, which may originate, in part or in whole, with the manufacturer or the fabricator and such warranties must be passed through the Contractor to the Department;

1. Insulating glass must be warranted to be free of manufacturing defects resulting in seal failure, interpane dusting or misting for a period of ten (10) years from the date of Substantial Completion, and any insulating glass failing to meet this warranty must be removed and replaced by the Contractor at no cost to the City.

2. Laminated glass must be warranted to be free of manufacturing defects resulting in edge separation or obstruction of vision thru the glass for a period of five (5) years from date of Substantial Completion, and any laminated glass failing to meet this warranty must be removed and replaced by the Contractor at no cost to the City.

3. All glass and glazing work other than the warranty for the insulating glass, tempered or laminate glass or plastic must be guaranteed by this Contractor for a period of two (2) years from the date of Substantial Completion, to be weather and water-tight and any defects of material and workmanship that occur during this warranty period must be replaced or corrected at no cost to the City.

B. The Contractor must repair or replace defective materials and workmanship during the Contract Period and for listed above years from the date of Substantial Completion of the Project. Defective material and workmanship include, but are not limited to, the following:




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1. Remove and replace defective materials within warranty periods.

2. Broken seals, cracks or scratches, faulty sealant.


A. Provide two (2) of each glass type and glass size of insulated glass units.


A. Maintain materials and surrounding air temperature to minimum 50 degrees F (10 degrees C) prior to, during, and 24 hours after completion of glazing compound work.

1. When the ambient temperature is below 50 degrees F, do not install glazing, unless the Manufacturer of the glazing compound or sealant recommends and specifically agrees in writing to the application of such materials at the lower temperature.


A. Job Conditions

1. The Contractor must be held responsible to have visited the site and fully determined to his own satisfaction all physical conditions; site characteristics; means of egress and access from and to the site; or any other peculiarities of access from and to the existing site which may influence or effect the cost of this Work in any way.

2. The Contractor must accept the building and site as he finds it and must inform himself/herself as to the character and types of worked installed.

3. [The existing facilities must remain in operation during the entire construction period.]

4. All necessary precautions, safety and protective devices must be employed at all times during the progress of this Work, in full compliance with all the requirements of the General Conditions.

B. Field Measurements - Before proceeding with the fabrication of the glazing work, the supplier/installer must verify all dimensions and take




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such measurements as are required for proper fabrication and erection of the work.

C. Coordination - Coordinate Work of this Section with related Work specified in the other divisions/Sections of the Contract Documents.

PART 2 PRODUCTS



1. For Insulating Glass

a. Libbey-Owens-Ford, Toledo, OH 43697.

b. PPG Industries, Inc., Pittsburgh, PA 15272.

c. Southwall Technologies, Palo Alto, CA 94303.

d. Globe Amerada Glass Co., Elk Grove Village, IL 60007.

2. Butyl Sealants

a. “Extru-Seal” - Pecora, Corp., Harleyville, PA 19438,.

b. "Tremco butyl Sealant" - Tremco, Beachwood OH 44122,.

c. Bostik, Inc. – Wauwatosa, WI 53226

3. Glazing Tapes, Spacers, Blocks

a. General Electrics closed cell PVC Silglaze Tape.

b. Tremco's Preshim 440 Butyl Tape and Tremco's Preshim Tape.

c. PTI-606 Preformed Butyl Tape.

d. 3M Co. 5-1202T Preformed Tape and Sealant.

e. Dunn Rainey's - 4360 Preformed Tape and Sealant.

f. Schee's - 5603 Preformed Tape and Sealant.

4. Dry glazing gaskets must consist of closed neoprene sponge rubber and/or butyl-polyisobutylene and/or PVC Silglaze-40-lb. density tape and a 70 durometer wedging gasket. Assembly system to meet AAMA (Architectural Aluminum ASSO). SG-1-76 and ASTM C 509. Tape and wedge system as manufactured by:

a. Tremco, Beachwood Ohio.




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b. F.H. Maloney-Div. of Ramtek Industries, Houston, Texas 77001.

c. Approved equal based on above performance characteristics.

5. Edge tapes (for laminated glass must be)

a. "Scotch" Brand Transparent Tape 600.

b. Mystic" Brand by Borden Inc.

c. Approved equal based on above performance characteristics.


A. Insulating Glass: Low-E-Coated, Reflective, Insulating Laminated Glass.

1. Overall Unit Thickness: 1 inch. 2. Lites: 6.0 mm heat strengthened glass. 3. Interspace Content: Argon. 4. Low-E Coating: Pyrolytic or sputtered on second or third

surface. 5. Visible Light Transmittance (VLT): 17 percent min. 6. U-Factor: .29 maximum 7. Solar Heat Gain Coefficient (SHGC): .18 max. 8. Visible Light Reflectance Exterior: 14 percent min 9. Visible Light Reflectance Interior: 29 percent min. 10. Basis of Design: PPG Solarcool (2) Solarblue + Solarban 60 (3)

Clear.

2.03 MATERIALS:

A. Insulating glass is a factory-fabricated unit composed of lights of glass (float, tempered or laminated as shown on the Drawings) separated by a hermetically sealed space containing dry air. Edge seal must consist of primary seal, metal spacer, drying agent, corner clip and secondary seal.

B. Coating. Color, thickness, type and pattern as noted or as selected by the Commissioner.

C. Glazing compound for channel glazing of existing and new sash where snap in stops are not indicated, must be elastic, non-hardening and waterproof; must work readily and smoothly under a knife without




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crumbling or checking; must show maximum adhesion to the surfaces to which it is applied after being molded in place; and must hold its shape without showing any signs of sagging until set.

D. Setting blocks, spacers and wedges must be of proper size, shape and hardness; neoprene or other materials recommended by the glass Manufacturer and FGMA details.

1. Setting blocks - 70-90 durometer.

2. Side Spacer Channels - 40-50 durometer.

3. Tapes or preformed gaskets - closed cell sponge rubber; closed cell PVC Silglaze; or butyl rubber.

4. Sealants must be contain any solvents or oils which must react with the vinyl inner layer to delaminate the glass.

E. Glass stops must be snap on type. No exposed screws will be used to secure them in place, glaze with non-stretch high shore neoprene or vinyl, both faces.

PART 3 EXECUTION

3.01 INSPECTION:

A. Before commencing installation, examine substrate surfaces to determine that they are free of conditions which might be detrimental to proper and timely completion of the Work. Start of Work must indicate acceptance of the substrate.

3.02 PREPARATION:

A. All existing sash must have had existing glass and paint removed before starting any reglazing work.

3.03 INSTALLATION:

A. Installation must be in strict accordance with the glass and plastic pane Manufacturer's printed installation instructions. Employ only experienced glazers who have previous experience in setting glass and plastic panes in the glazing system to be used.

B. Field measure all sash and frame openings and cut glass to fit each opening with minimum edge clearances and bite on glass or plastic as recommended by the Manufacturer and required as by FGMA.




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Tempered glass must not be seamed, nipped or abraded at the job site.

C. Manufacturer's label showing strength and quality is to appear on all glass and plastic, and no labels are to be removed until so directed by the Commissioner. When glass is not cut to size by Manufacturer and is furnished unlabeled from local stock, the Contractor must submit an affidavit stating the quality, thickness, type and Manufacturer of glass furnished.

1. The above abbreviations are for the following:

a. T = Minimum thickness

b. EG = Minimum edge engagement.

c. EX = Minimum recommended clearance from edge of pane to rabbet (or rebate) to provide expansion.

d. R. = Recommended minimum depth of rabbet.

e. For other sizes not listed in general in above table consult Manufacturer for thickness, edge engagement, allowance for expansion and min. rabbet. Minimum thickness for any pane below 30" x 48" in size must be 3/16".)

D. No glazing work will be done when the temperature is below 50 degrees F, unless the Manufacturer of the glazing compound or sealant recommends and specifically agrees in writing to the application of such materials at the lower temperature.

E. Clean glazing stops and rabbets to receive glazing materials of all obstructions and deleterious substances which might impair the work. Remove protective coatings which might fail in adhesion or interfere with bond of sealants. Comply with Manufacturer's instructions for final wiping of surfaces immediately before application of primer and glazing compounds or tapes. Prime surfaces to receive glazing compound or sealant in accordance with Manufacturer's recommendations using recommended primers.

F. Inspect each piece of glass and/or plastic immediately before installation. Pieces which have significant impact damage at edges scratches or abrasion of faces, or any other evidence of damage must not be installed.

G. Locate setting blocks at the quarter points of sill, but no closer than 6 inch to corners of pane. Use blocks of proper size to support the glass in accordance with Manufacturer's recommendations.




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H. Provide spacers for all pane material to separate the pane material from stops, except where continuous gaskets or tape are required. Locate spacers 18" on center maximum inside and out, with a minimum of two (2) spacers per edge of glass. Provide thickness equal to sealant or compound thickness shown. Provide width as

required for minimum of _” bite on glass at all four (4) edges; for plastic.

1. Installation must conform to the referenced standards hereinbefore specified and also with the recommendations of both the glazing and approved sealant Manufacturers.

I. Use masking tape or other suitable protection to limit coverage of glazing materials to the surfaces intended for sealants.

J. Butt or lap ends of sealant tape or gasket in accordance with the Manufacturer's recommendation. Use preformed corners for the "dry system" glazing.

K. Tool exposed surfaces of glazing materials to provide a slight wash away from the glass. Install exposed tapes and gaskets with a slight protrusion above stops in the final compressed condition.

L. Clean excess sealant or compound from glass and framing members immediately after application, using solvents or cleaners recommended by Manufacturers. For plastic cleaning see paragraph below.

M. Glazing materials from different sources must not be used in the same joint system unless the Manufacturer of each material has stated in writing that his material is fully compatible with the other material.

3.04 PROTECTION AND CLEANING:

A. Protect glass from breakage immediately upon completion of installation. Use streamers or ribbons suitably attached to frames and held free from glass. Markings or warning labels applied directly to glass surfaces are not to be used.

B. Remove and replace glass which is broken, cracked, chipped or damaged in any way and from any source, including damage resulting from weather, vandalism or accidents during the construction period.

C. Prior to final acceptance of Project, remove all labels, wash and polish glass on both faces. Comply with instructions and recommendations




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of the glass Manufacturer and glazing materials Manufacturer for cleaning in each case.


A. All rubbish and debris resulting from the Work of this Section, must be collected and removed from premises and disposed of legally.



CHICAGO DEPARTMENT OF AVIATION/ PAINTS AND COATINGS



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PAINTS AND COATINGS

SECTION 09900

PART 1 GENERAL

1.01 SECTION INCLUDES


B. Furnish and install Paints and Coatings Work as shown on the Drawings and as specified herein, including but not limited to the following:

1. Surface preparation and field application of paints and coatings.

C. Install products and materials (furnished in other Sections) as shown on the Drawings and as specified herein, including but not limited to the following:

1.02 RELATED WORK


1. Section 5 - Metals

2. Section 6 - Wood and Plastics

3. Section 8 – Doors and Windows

4. Section 9 – Finishes

1.03 REFERENCES

A. ASTM D 16 - Definitions of Terms Relating to Paint, Varnish, Lacquer, and Related Products.

B. ASTM D 2016 - Test Method for Moisture Content of Wood.

C. AWWA (American Water Works Association) - C204 - Chlorinated Rubber-Alkyd Paint Systems for the Exterior of Above Ground Steel Water Piping.

D. AWWA (American Water Works Association) - D102 - Painting Steel Water Storage Tanks.




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E. NACE (National Association of Corrosion Engineers) - Industrial Maintenance Painting.

F. NPCA (National Paint and Coatings Association) - Guide to U.S. Government Paint Specifications.

G. PDCA (Painting and Decorating Contractors of America) - Painting - Architectural Specifications Manual.

H. SSPC (Steel Structures Painting Council) - Steel Structures Painting Manual.

1.04 SUBMITTALS



a. Product Data

(1) Provide data on all finishing products. (2) Manufacturer's Instructions indicating special

surface preparation procedures and substrate conditions requiring special attention.

b. Samples

(1) Three sets of sample, at least 1”x 1/2”, showing all colors and textures available for initial selection.

(2) Submit three (3) samples, 8½”x11” in size illustrating color and texture for each color selected.

B. Test Reports


2. Manufacturers Certification


(1) Indicating special surface preparation procedures, substrate conditions requiring special attention that apply to this Project.




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1.05 QUALITY CONTROL

A. Manufacturer Qualifications: manufacturers of paints and coatings must be performed only by a qualified manufacturer. The term qualified means experienced in performing the Work required by this Section. The qualified manufacturer must have a minimum of ten (10) years documented experience on Projects similar in size and scope to this Project. The manufacturer must submit evidence of such qualifications upon request by the Commissioner.

B. Contractor Qualifications: Application of paints and coatings must be performed only by a qualified applicator. The term qualified means experienced in performing the Work required by this Section. The qualified applicator must have a minimum of five (5) years documented experience on Projects similar in size and scope to this Project. The applicator must submit evidence of such qualifications upon request by the Commissioner.

C. Perform Work in accordance with the latest edition, of the appropriate divisions, of the following:

1. Applicable Sections of the City of Chicago Building Codes for flame and smoke rating requirements for finishes.

2. Applicable Federal, State and local laws and regulations regarding the use of volatile organic compounds and hazardous materials.

1.06 DELIVERY, STORAGE AND HANDLING

A. Materials must be delivered to the Project in sealed containers bearing Manufacturer's name and material identification, type of paint, brand name, lot number, brand code, coverage, surface preparation, drying time, cleanup requirements, color designation, and instructions for mixing and reducing. Materials must be stored in strict accordance with the Manufacturer's printed directions, copies of which must be furnished to the Commissioner.

1. Store paint materials at minimum ambient temperature of 45 degrees F (7 degrees C) and a maximum of 90 degrees F (32 degrees C), in ventilated area, and as required by Manufacturer's instructions.

2. All paints, varnishes, enamels, lacquers, stains and similar materials must be delivered in the original containers with the




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seals unbroken and label intact and with the Manufacturer's instructions printed thereon.

B. Protection - Protect materials against all damage by an approved means during transportation, storage and erection and until completion of construction work. All unsatisfactory materials must be removed from the premises, and all damaged materials replaced with new materials.



1.07 WARRANTIES AND GUARANTEES

A. Paints and coatings must be covered under Contractors general construction warranty.

1.08 EXTRA MATERIALS AND SPARE PARTS

A. Provide 1 gallon (4L) of each color, type, and surface texture to the Commissioner.

1. Label each container with color, type, texture, and room locations in addition to the manufacturer's label.

1.09 ENVIRONMENTAL REQUIREMENTS

A. Do not apply materials when surface and ambient temperatures are outside the temperature ranges required by the paint product Manufacturer.

B. Do not apply exterior coatings during rain or snow, or when relative humidity is outside the humidity ranges required by the paint product Manufacturer.

C. Minimum Application Temperatures for Latex Paints

1. 45 degrees F (7 degrees C) for interiors; 50 degrees F (10 degrees C) for exterior; unless required otherwise by Manufacturer's instructions.

D. Minimum Application Temperature for Varnish and Finishes




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1. 65 degrees F (18 degrees C) for interior or exterior, unless required otherwise by manufacturer's instructions.

E. Provide lighting level of 80 ft candles (860 lx) measured mid-height at substrate surface.

1.10 SPECIAL REQUIREMENTS

A. Field Measurements - Before proceeding with the fabrication of the work, the Contractor must verify all dimensions and take such measurements as are required for proper fabrication and installation of the work.

B. Coordination - Coordinate Work of this Section with related Work specified in the other divisions/Sections of the Contract Documents.

C. The Contractor must prior to starting any work meet with the Commissioner to review in detail and to agree upon a program for scheduling work so as to make certain that the various stages of the work must not interfere with the normal conduct of business.

PART 2 PRODUCTS

2.01 ACCEPTABLE MANUFACTURERS


1. Benjamin Moore & Co., Montvale, NJ 07645.

2. Detroit Graphite Co. (B Valspar Co.)

3. The Glidden Co., Cleveland, OH 44115.

4. PPG lndustries, Inc., Pittsburgh, PA 15272.

5. Pratt & Lambert Specialty Products, Cleveland, OH 44115.

6. Rust-Oleum Corp., Vernon Hills, IL 60061.

7. Sherwin-Williams Company, Cleveland, OH 44115.

8. Tnemec Co., Inc., Kansas, MO 64120.

B. The Contractor is advised that some of the above manufacturer's products may be specifically specified to meet required conditions and surface coatings.




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2.02 PAINT AND COATING MATERIALS

A. All painting materials, must be of the best quality, and will be approved by the Commissioner. They must bear identifying labels on the containers with the Manufacturer's instructions printed thereon.

B. Paint must not be settled badly, caked or thickened in the container, must be readily dispersed with a paddle to a smooth consistency and must have excellent application properties.

C. Paint must arrive on the job color-mixed except for tinting of undercoats and possible thinning.

D. All thinning and tinting materials must be as recommended by the manufacturer for the particular material thinned or tinted.

E. It must be the responsibility of the applicator to see that all mixed colors match the color selection made by the Commissioner, prior to application of the coating.

F. Coatings - Ready mixed, except field catalyzed coatings. Process pigments to a soft paste consistency, capable of being readily and uniformly dispersed to a homogeneous coating; good flow and brushing properties; capable of drying or curing free of streaks or sags.

G. Accessory Materials - Linseed oil, shellac, turpentine, paint thinners and other materials not specifically indicated but required to achieve the finishes specified, of commercial quality.

H. Patching Materials - Latex filler.

I. Fastener Head Cover Materials - Latex filler.

2.03 SHOP PRIMERS

A. Review all Sections for shop primed products to be finish coated under this Section (such as doors and frames or casework) and coordinate with providers of these products to assure that all prime coats are compatible with the intended finish coats and meet the requirements of this Section.

PART 3 EXECUTION

3.01 INSPECTION




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A. Inspect and verify that all surfaces conform to the manufacturer’s requirements for that specific substrate.

B. Before commencing installation, examine substrate surfaces to determine that they are free of conditions which might be detrimental to proper and timely completion of the work. Start of work must indicate acceptance of the substrate.

C. Test shop applied primer for compatibility with subsequent cover materials.

D. Measure moisture content of surfaces using an electronic moisture meter. Do not apply finishes unless moisture content of surfaces are below the manufacturer’s recommended level or below the following maximums, whichever is more restrictive:

1. Plaster and Gypsum Wallboard - [12] percent.

2. Masonry, Concrete, and Concrete Unit Masonry - [12] percent.

3. Interior Wood - [15] percent, measured in accordance with ASTM D 2016.

4. Exterior Wood - [15] percent, measured in accordance with ASTM D 2016.

5. Concrete Floors - [8] percent.

3.02 WORKMANSHIP - GENERAL

A. Only skilled mechanics must be employed. Application may be by brush, roller or spray, upon approval from the Commissioner.

B. The Contractor must furnish the Commissioner a schedule showing when he/she expects to have completed the respective coats of paint for the various areas and surfaces. This schedule must be kept current as the job progresses.

C. The Contractor must protect its work at all times, and must protect all adjacent work and materials by suitable covering or other method during progress of his work. Upon completion of the Work, he/she must remove all paint and varnish spots from floors, glass and other surfaces. He/she must remove from the premises all rubbish and must leave its part of the work in clean, orderly and acceptable condition.

D. Remove and protect hardware, accessories, device plates, lighting fixtures, factory finished work, and similar items; or provide ample in-




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place protection. Upon completion of each space, carefully replace all removed items.

E. Remove electrical panel box covers and doors before painting wall. Paint separately and re-install after all paint is dry.

F. All materials must be applied under adequate illumination, evenly spread and smoothly flowed on to avoid runs, sags, holidays, brush marks, air bubbles and excessive roller stipple.

G. Coverage hide must be complete. When color, stain, dirt, or undercoats show through final coat of paint, the surface must be covered by additional coats until the paint film is of uniform finish, color, appearance and coverage, at no additional cost to the City.

H. All coats must be dry to Manufacturers recommendations before applying succeeding coats.

I. All suction spots or "hot spots" in plaster and/or cement after the application of the first coat must be touched up before applying the second coat.

J. All surfaces, unless otherwise excluded, must be painted. Surfaces or items which may be adjacent to areas to be painted, but not identified in the Schedule of Painting tabulation must be painted or finished as adjacent work. Note - All colors are to be selected by the Commissioner.

K. After prime coat has been applied over any wall or ceiling surfaces, surfaces must be examined and all voids and depressions spackled and touched up before proceeding with final coating.

L. Tint each successive coat so that it is possible to determine how many coats have been applied.

3.03 PREPARATION OF SURFACES

A. Prepare all surfaces according Manufacturer’s written requirements but not less than the following:

1. General:

a. Surfaces must be clean, dry and adequately protected from dampness.




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b. Surface must be free of any foreign materials which must adversely affect adhesion or appearance of applied coating.

c. Mildew must be removed and the surface neutralized per the coating manufacturers recommendations.

d. Efflorescence on any area must be corrected before painting.

e. Where existing surfaces have been painted and new painting is required where indicated on the Drawings and in the "Room Finish Schedule" the following guide may be used to determine the degree of surface preparation required after making a through inspection of the old coating.

Surface Condition Preparation 75% Intact Remove failed portions of

coating by specified method and spot prime bare areas.

Less than 75% intact Total removal by surface preparation method specified

Brittle, eroded or Total removal by surface underfilm rusting preparation method specified.

2. Wood to be painted

a. Sandpaper to smooth and even surface, then dust off.

b. Apply shellac, 4 pound cut, to all knots, pitch and resinous sapwood prior to application of specified primer coats.

c. After priming coat has dried, putty all nail holes, cracks, open joints and other defects. Putty must be colored to match primer, if putty is not compatible with finish, spot prime puttied areas.

3. Plaster and Gypsum

a. Rake small cracks, scratches and abrasions deeply. Under large crack edges, coat cracks with shellac and fill with patching plaster. Spot coat patches with prime coat when dry, prior to applying specified prime coat.




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b. Do not leave sandpaper scratches on plaster surfaces to be painted.

c. Before painting any plaster, surfaces must be tested with a moisture-testing device. No paint or sealer will be applied on plaster when moisture content exceeds 15% except as may be required by the manufacturer of the paint materials used.

d. Test sufficient areas in each space, and as often as necessary to determine the proper moisture content for painting.

4. Drywall

a. Fill all minor irregularities with spackling paste and sand to a smooth level surface. Exercise care to avoid raising nap of paper.

5. Concrete, Masonry and Stucco

a. Patch large openings and holes and finish flush with adjacent surface. After priming, fill any remaining small holes with prepared patching material.

b. Acid etch concrete floor surface, scheduled for painting, with solution of one part 32% muriatic acid to three parts water. Flush floor with clean water and allow to dry thoroughly before painting. Check the pH#, if not neutral then correct by using 3% solution of T.S.P. or ammonium hydroxide. The etched surface should look uniform in sheen and feel like l00 grit abrasive paper.

c. Remove form oil from poured-in-place concrete by washing concrete with xylol, or exempt type form oil solvent, or as required for complete removal.

d. These surfaces must be dry. No painting will be done until surfaces have cured for 28 days and are dry.

6. Ferrous Metal Surfaces

a. Remove dirt and grease with mineral spirits and wipe dry with clean cloths.

b. Remove rust, mill scale and defective paint down to sound surfaces or bare metal using scraper, sandpaper




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or wire brush as necessary. Grind, disc sand, etc. if necessary, to prevent “photographing” thru finish coats.

c. Touch up all bare metal and damaged shop coats with specified Shop Coat Primer.

d. The surface preparation must also be in strict accord with the recommendations set forth in "Surface Preparation Specifications" issued by the "Steel Structures Painting Council" (SSPC latest issue), Pittsburgh, PA 15213.

7. Galvanized Metal Surfaces

a. Remove dirt and grease with mineral spirits and wipe dry with clean cloths.

8. Existing Surfaces to be Repainted (when and where applicable)

a. Where existing work is cut, patched, or added to, all surfaces must be painted or touched up to match present work as closely as possible.

b. Existing work, where scheduled for repainting, must be put in condition to provide good adhesion and to receive paint.

3.04 WORKMANSHIP FOR EXTERIOR PAINTING

A. Exterior Painting

1. Must not be done when the surface temperature is below that indicated by the Manufacturer but not below 50 degrees F, while the surface is damp, or during cold, rainy or frosty weather. The substrate temperature must be as indicated by the Manufacturer, but not more than 5 degrees F above the Dew Point temperature while painting and during the coatings cure.

2. Avoid painting surfaces while they are exposed to hot sun.

B. All Exterior Wood Trim

1. Must be back-primed before installation.

C. Exterior Doors

1. Must have top, bottoms, and side edges finished the same as the exterior faces of these doors.

3.05 WORKMANSHIP FOR INTERIOR PAINTING




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09900-12

A. All Interior Wood Trim

1. Must be back-primed before installation with undercoat or penetrating sealer as required.

B. Interior Doors

1. Must be sealed on the tops and bottoms with the prime coat only. Side edges of interior doors must be finished as faces of these doors.

C. All Closet Interiors

1. Must be finished the same as adjoining rooms, unless otherwise specified.

D. The insides of all drawers must be given one coat of clear varnish sealer.

E. For double-hung windows, tops of all upper sash and bottoms of all lower sash must be finished same as interior finish.

F. Paste wood filler applied on open grained wood, after commencing to flatten, must be wiped across the grain of the wood, then with a circular motion to secure a smooth, filled, clean surface with filler remaining in open grain only. After overnight dry, sand surface, with grain, until smooth before applying specified coat.

G. Enamel or varnish finish applied to wood or metal must be used with fine sandpaper and then cleaned between coats to produce an even surface.

3.06 WORKMANSHIP FOR MECHANICAL AND ELECTRICAL EQUIPMENT PAINTING

A. Refer to Division 15000 and Division 16000 for schedule of color coding and identification banding of equipment, duct work, piping, and conduit.

B. Paint shop primed equipment. Do not paint shop prefinished items occurring at interior areas.

C. Remove unfinished louvers, grilles, covers, and access panels on mechanical and electrical components and paint separately.




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09900-13

D. Prime and paint insulated and exposed pipes, conduit, boxes, insulated and exposed ducts, hangers, brackets, collars and supports, and etc. except where items are prefinished.

E. Paint interior surfaces of air ducts, and convector and baseboard heating cabinets that are visible through grilles and louvers with one coat of flat black paint, to visible surfaces. Paint dampers exposed behind louvers, grilles, and convector and baseboard cabinets to match face panels.

F. Paint exposed conduit and electrical equipment occurring in finished areas.

G. Paint both sides and edges of plywood backboards for electrical and telephone equipment before installing equipment.

H. Color code equipment, piping, conduit, and exposed duct work in accordance with [requirements indicated.] [color schedule.] Color band and identify with [flow arrows] [names] [and] [numbering.] {Consultant/Task Designer must verify and make the selections required in the preceding paragraph}

I. Reinstall electrical cover plates, hardware, light fixture trim, escutcheons, and fittings removed prior to finishing.

J. Do not paint any moving parts or items whose function will be damaged by painting them.

3.07 SCHEDULE OF PAINTING

A. The following is a general guide to the extent of painting, finishing, and decorating required, but is not necessarily limited to the items listed. Refer to Room Finish Schedules and all notes on the Drawings and herein specified.

B. Except as noted otherwise, the paint products indicated in the following schedule are by [Pratt and Lambert] and are intended as examples of type, quality and performance required. Products by any other manufacturer listed in this Section which meet or exceed the performance of the example products listed and are of the same type and quality will be acceptable. {Consultant/Task Designer must may select a different manufacture for example paints and must verify that all paints in the schedule that follows are the correct, current product designations.}

C. Paint as follows:




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09900-14

1. New Wood Frames, Trim & Wainscots - Natural Finish

a. First coat - Paste Filler on oak only.

b. Second coat - Oil Stain.

c. Third coat - White Shellac.

d. Fourth coat - "38" Pale trim Varnish - Gloss.

e. Fifth coat - "38" Pale trim Varnish - Satin.

2. Existing Wood Frames, Trim, Wainscots & Doors Natural Finish

a. Sandpaper existing surfaces.

b. Paste Filler and stain damaged surfaces

c. Second coat - Sanding Sealer

d. Third coat - "38" clear Alkyd Varnish - satin

e. See also item #18 "Refinish of Painted Wood Door Surfaces to Natural Finish"

3. New Interior Wood Doors, Frames, Trim & Sash - Paint Finish – Acrylic, 3 coat, Semi-Gloss

a. First Coat - SUPrime “8”

b. Second & Third coats - Accolade Interior Enamel Semi-Gloss.

4. New Wood Doors - Shop Finished - Natural Finish

a. Refer to Section 08210 - “Wood Doors”

b. Touch-Up damaged surfaces as in item (2) & (3) above.

5. New Exterior wood Frames, Trim & Sash - Paint Finish – Alkyd, 3-coat, Gloss

a. First coat - SUPrime “11”

b. Second & Third Coats - Effecto Enamel - Gloss

6. Refinish of Painted Wood Surfaces to Natural Finish




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09900-15

a. Remove the paint from wood surfaces that will be exposed to the public view by any standard method that will not damage the original wood surface or raise the wood grain, then fine sandpaper.

b. Paste filler - oak only.

c. Stain to match existing and/or new doors

d. Second coat - Sanding Sealer

e. Third & Fourth Coats - "38" Clear Alkyd Varnish - Satin.

7. New Plaster Surfaces - Paint Finish – Acrylic, 3 coat, Semi-Gloss.

a. First coat - Primer If less than 60 days dry: SUPrime “1”

b. Second & third Coats - Accolade Interior Enamel – Semi-Gloss

8. Existing Plaster Surfaces - Paint Refinish – Acrylic, 2-coat, Semi-Gloss.

a. Rough sand and smooth sand existing painted surfaces.

b. First coat - If greater than 60 days dry: SUPrime “12”

c. Second coat - Accolade Interior Enamel – Semi-Gloss

9. New Standard Gypsum Board Surfaces - Paint Finish - Acrylic, 3-coat, Semi-Gloss.


b. Second & Third Coats - Accolade Interior Enamel – Semi-Gloss

10. New W.R. Gypsum Board-Surfaces - Paint Finish – Acrylic, 3-coat, Semi-Gloss.

a. Back paint all W.R. Gypsum Board before erection with one coat of SUPrime “11”.

b. Exposed surface to receive

(1) First coat - SUPrime “4”




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09900-16

(2) Second & Third Coats Accolade Interior Enamel – Semi-Gloss

11. Metal Surfaces - Ferrous - Exposed to Public View, (Except Handrailings) – Alkyd Enamel, 3-coat, Gloss.


b. Second and Third coat - Permalize - Gloss

12. Metal Surfaces - Aluminum - only for ducts & conduits exposed to public view (Same as for item - "Metal Surfaces Ferrous")

13. Ferrous Metal Handrailings – Epoxy, 2 or 3-coat, Gloss

a. For Existing or New Handrailing - prepare per Manufacturer’s written requirements but not less than remove rust spots and loose paint, with wire brush and sandpaper, clean with mineral spirits and remove all rust spots.

(1) First Coat - Zinc-Rich Urethane Primer Coat -Tneme-Zinc 90-97 (by Tnemec)

(2) Second Coat - Polyamide Epoxy Intermediate Coat - Hi-Build Epoxoline 66 (by Tnemec)

(3) Third Coat: Where handrail is exposed to UV light, provide a third coat of Aliphatic Acrylic Urethane Top Coat - Endura-Shield 1075 (by Tnemec)

14. Galvanized Surfaces - Exposed to Public View – Alkyd Enamel, 3-coat, Gloss

a. Conform to Manufacturer’s requirements for surface preparation:

b. First Coat - Moore's Ironclad Galvanized Metal Primer SUPrime “3”.

c. Second and Third Coat - Permalize - Gloss

15. Galvanize Steel Handrails – Epoxy, 3-coat, Gloss

a. Primer Coat - Polyamide Epoxy Prime Coat - Hi-Build Epoxoline 66 (by Tnemec)

b. Second Coat: Polyamide Epoxy Intermediate Coat - Hi-Build Epoxoline 66 (by Tnemec)




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09900-17

c. Third Coat: Where handrail is exposed to UV light, provide a third coat of Aliphatic Acrylic Urethane Top Coat - Endura-Shield 1075 (by Tnemec)

16. Elevator Doors and Frames – Epoxy, 2 finish coats over shop applied primer, Gloss.

a. Touch-Up shop prime coat.

b. Two (2) coats of Polyamide Epoxy - Hi-Build Epoxoline 66 (by Tnemec).

17. Concrete Floors – Epoxy (for floors), 2-coat, Satin.

a. Scarify existing or new surfaces after all other paints and adhesive materials have been removed. Age of new concrete must be 90 days Prepare surface and allow curing according to Manufacturer’s written requirements.

b. Two (2) coats of Pratt & Lambert's " Palgard Epoxy Coating". Total thickness of coatings to be 4.0 mils dry.

18. Masonry - Paint Finish – Acrylic, 2 of 3-coat, Semi-Gloss.

a. Existing painted masonry - sandpaper and wash existing painted surfaces and then apply

(1) First coat - Pro-Hide Silver Heavy Duty Block Filler (2) Second coat - Accolade Interior Enamel – Semi-

Gloss

b. New Masonry

(1) First coat - Pro-Hide Silver Heavy Duty Block Filler (2) Second & Third Coats - Accolade Interior Enamel

– Semi-Gloss

19. Insulation - exposed to public view, fabric cover – Acrylic, 2-coat, Semi-Gloss.


b. Second coat - Accolade Interior Enamel – Semi-Gloss

3.08 CLEANING

A. Oily or paint filled rags, waste and other combustible materials must be deposited in metal containers with tight fitting lids and same disposed of daily.




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09900-18

B. Just prior to final completion and acceptance, the Contractor must examine all painted and finished surfaces and retouch or refinish as necessary and required to leave all surfaces in perfect condition.

C. Upon completion of work, the Contractor must remove all paint and varnish spots from floors, glass and other surfaces and remove all rubbish and accumulated materials of whatever nature from premises and leave work in a clean, orderly and acceptable condition.

3.09 GENERAL CLEAN-UP




CHICAGO DEPARTMENT OF AVIATION 15950-1 TEMPERATURE CONTROLS



M8119.15-00

ISSUED FOR BID, FEBURARY 27, 2018

TEMPERATURE CONTROLS

SECTION 15950

PART 1 GENERAL:



B. Furnish and install all temperature control equipment, materials, and accessories as shown on the Contract Drawings and as specified herein, which include, but are not limited to, the following:

1. Input devices:

a. Temperature sensors:

(1) Room temperature sensors

(2) Thermowells

(3) Outside air sensors

(4) Duct mount sensors

(5) Averaging sensors

b. Thermostats:

(1) Electric room thermostats

c. Humidity sensors

d. Differential pressure transmitters

e. Duct air flow measuring stations

f. Damper position indicators

g. Carbon monoxide detectors

h. Carbon dioxide sensors

i. Smoke detectors

j. Status and safety switches:

(1) Current sensing switches

(2) Air filter status switches

(3) Air pressure safety switches

(4) Low temperature protection switches

(5) Sump pit high level switches

2. Output devices:




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a. Actuators:

(1) Electronic damper actuators

(2) Electronic valve actuators

(3) Pneumatic valve actuators

b. Control valves:

(1) High temperature water control valves

(2) Chilled water control valves

(3) Radiation valves

c. Control dampers

d. Damper position indicators

e. Control pilot relays

3. Miscellaneous items:

a. Power supplies:

(1) DC power supplies

b. Surge protectors:

(1) Data line surge protectors

(2) Power line surge protectors

c. Digital to pneumatic transducers

d. Control panels

1.02 RELATED WORK:

A. Division 13 - Building Automation System (BAS), Section 13850

B. Division 15 - Sequence of Operations, Section 15985

C. Division 16 - Electrical

1.03 REFERENCES:

A. As a minimum, meet the requirements of the following codes and standards.

1. City of Chicago Electrical and Energy Conservation Code

2. AMCA 500 - Test Methods for Louvers, Dampers and Shutters

3. ASHRAE Standard 135-95

4. ASME B16.22 - Wrought Copper and Copper Alloy Solder Joint Pressure Fittings

5. ASTM B280 - Seamless Copper Tube for Air Conditioning and Refrigeration Field Service




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6. NEMA DC 3 - Low-Voltage Room Thermostats

7. NEMA EMC1 - Energy Management Systems Definitions

8. NEMA 250 - Enclosures for Electrical Equipment (1000 Volts Maximum)

9. NFPA 70, 72 - National Electrical Code & Fire Codes

10. NFPA 90A - Installation of Air Conditioning and Ventilation Systems

11. Underwriters Laboratories (U.L.) Standards

1.04 SUBMITTALS:

A. Refer to the Basic Mechanical Requirements Section, 15100.

B. Shop Drawings: Include complete control system drawings, wiring diagrams, and written detailed operational description of sequences. Submit schedule of control valves and control dampers indicating size, flow, and pressure drop for each valve. For automatic dampers indicate arrangement, velocities, and static pressure drops for each system. Submit flow charts for each sequence of operation.

C. Schematic Diagrams: Schematic diagrams shall be provided indicating all termination points within each DDC cabinet, control piping and wiring of sensors and actuators to DDC cabinets.

D. Product Data: Provide description and engineering data for each control system component. Include sizing as requested. Provide data for each system component and software module.

E. Manufacturer's Instructions: Provide instructions for all manufactured components. Include inspection period, cleaning methods, recommended cleaning materials, and calibration tolerances.

F. Project Record Documents: Revised Shop Drawings reflecting actual installation and operating sequences. Records of actual locations of control components, including panels, thermostats, and sensors.

1.05 QUALITY ASSURANCE:


B. All temperature control components shall be integrated in existing Airport control system. Control devices shall be compatible with current Airport devices.

C. Design system under direct supervision of a Professional Engineer experienced in design of this type and nature of work and licensed in the State of Illinois.




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D. Products Requiring Electrical Connection: Listed and classified by Underwriters Laboratories Inc. as suitable for the purpose specified and indicated.

E. Contractor Qualifications: Installation of temperature control equipment and accessories must be performed only by a qualified installer. The term qualified means experienced in performing the work required by this Section. The qualified installer will be responsible for demonstrating to the Commissioner’s satisfaction that he/she has sufficient experience in its role. The installer must submit evidence of such qualifications upon request by the Commissioner.

F. Manufacturer Qualifications: Fabrication of temperature control equipment and accessories must be performed only by a qualified fabricator. The term qualified means experienced in performing the work required by this Section. The qualified fabricator will be responsible for demonstrating to the Commissioner’s satisfaction that he/she has sufficient experience in its role. The qualified fabricator must submit evidence of such qualifications upon request by the Commissioner.

1.06 DELIVERY, STORAGE, AND HANDLING:

A. (NOT USED)

1.07 WARRANTIES:



A. (NOT USED)

PART 2 PRODUCTS:


A. Subject to compliance with the requirements of the Contract Documents, the products shall be by one of the manufacturers listed in this Section of the specification.

Item

Manufacturer

Temperature Control Systems

Alerton Technologies, Andover Controls, Automated Logic Corp.,




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Item

Manufacturer

Barber-Colman, Delta Controls, Honeywell, Invensys Controls, Johnson Controls, Robertshaw, Siemens Building Technologies, Trane

B. The design of this project, including all plans, drawings, and construction details, is based on the stated manufacturer’s model numbers. If the Contractor intends to provide items or equipment from any of the other acceptable manufacturers listed in the Contract Documents, then the Contractor shall be responsible for the cost of any and all work, including, but not limited to additional design, engineering, labor, material, equipment and incidental costs, necessary to accommodate such items or equipment for this project.

C. Any and all work that may be required to accommodate any items or equipment of the other acceptable manufacturers listed in the Contract Documents is, without limitation, subject to the review of the Commissioner.

2.02 INPUT DEVICES:

A. Temperature Sensors

1. General requirements:

a. Provide sensors and transmitters as required by the point lists and sequence of operation and to achieve the specified accuracy as specified herein.

b. Temperature transmitters shall be equipped with individual zero and span adjustments. Provide a loop test signal to aid in sensor calibration.

c. Temperature transmitters shall be sized and constructed to be compatible with the medium to be monitored. Transmitters shall be equipped with a linearization circuit to compensate for non-linearities of the sensor and bridge and provide a true linear output signal.

d. Temperature sensor shall be of the resistance type and shall be either three-wire 100 ohm platinum RTD, or two-wire 1000 ohm platinum RTD.

e. Thermistors are acceptable provided the mathematical relationship of a thermistor with respect to resistance and




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temperature with the thermistor fitting constraints is contained with the digital controller operating software and the listed accuracies can be obtained. Submit proof of the software mathematical equation and thermistor manufacturer fitting constants used in the thermistor mathematical/expressions. Thermistors shall be of the thermistor (NTC) type with a

minimum of a 50 ohm/°F. resistance charge versus temperature to insure good resolution and accuracy.

Thermistors shall be certified to be stable .24°F. over 5 years

and .36°F. accurate and free from drift for 5 years.

f. The following accuracies are required and include errors associated with the sensor, lead wire, and A to D conversion:

Point Type Accuracy

Chilled Water ± 0.5°F.

Room Temperature ± 1.0°F.

Hot Water ± 0.5°F.

Duct Temperature ± 0.5°F.

Precision ± 0.25°F.

All Others ± 0.75°F.

2. Room temperature sensors:

a. Room sensors shall be constructed for surface mounting.

3. Thermowells:

a. When thermowells are required, the sensor and well shall be supplied as a complete assembly including well head and Greenfield fitting.

b. Thermowells shall be pressure rated and constructed in accordance with the system working pressure.

c. Thermowells and sensors shall be mounted in a threadolet or ½" NFT saddle and allow easy access to the sensor for repair or replacement.

d. Thermowells shall be constructed of the following materials:

(1) Chilled and Hot Water: Brass.

4. Outside air sensors:

a. Outside air sensors shall be designed to withstand the environmental conditions to which they will be exposed. They shall also be provided with a solar shield.




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b. Sensors exposed to wind velocity pressures shall be shielded by a perforated plate surrounding the sensor element.

c. Temperature transmitters shall be of NEMA 3R construction and rated for ambient temperatures.

5. Duct mount sensors:

a. Duct mount sensors shall mount in an electrical box through a hole in the duct and be positioned so as to be easily accessible for repair or replacement. A neoprene grommet (sealtite fitting and mounting plate) shall be used on the sensor assembly to prevent air leaks.

b. Duct sensors shall be insertion type and constructed as a complete assembly including lock nut and mounting plate. Duct sensor probes shall be constructed of 304 stainless steel.

c. For outdoor air duct applications, use a weatherproof mounting box with weatherproof cover and gasket.

6. Averaging sensors:

a. For ductwork greater in any dimension that 48 inches and/or air temperature stratification exists, utilize an averaging sensor with multiple sensing points. The averaging sensor shall be a 304 stainless steel tube with holes extending across the duct or plenum to be sampled. A bleed hole outside the duct or plenum causes air to enter the sample tube and exit at the bleed hole, thus bathing the sensor in average air. The averaging sensor shall be installed complete with end cap, compression fittings, gaskets, mounting flange and required accessories.

b. For plenum applications such as mixed air temperature measurements, utilize a string of sensors mounted across the plenum to account for stratification and/or air turbulence. The averaging string shall have a minimum of 4 sensing points per 12 foot long segment.

c. Provide capillary supports at the sides of the duct to support the sensing string.

7. Acceptable manufacturers:

a. Thermistors: PreCon Type-3, ACI, Mamac.

b. Platinum RTD: HY Cal., ACI, Mamac.

B. Thermostats

1. Pneumatic room thermostats:

a. Room thermostats shall be of the two pipe, gradual volume amplifying relay type with sensitivity field adjustable from one




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to four psi/degree F. They shall have bi-metal sensing element capable of responding to a temperature change of one-tenth of one degree.

b. All thermostats shall be provided with limit stops to restrict the adjustments as required. Thermostats shall be arranged for vertical mounting with tamper resistant sockethead screws. Thermostats shall be provided with concealed set point adjustment and indication.

c. Finish of covers for all room-type instruments shall match. Covers shall be manufacturer's standard finish as reviewed by the Commissioner.

2. Electric room thermostats:

a. Electric thermostats of the heavy-duty type shall be provided for unit heaters cabinet unit heaters, cabinet unit heaters and ventilation fans where required. All shall be provided with concealed adjustment. Finish of covers for all room-type instruments shall match. Covers shall be manufacturer's standard finish as reviewed by the Commissioner.

C. Humidity Sensors

1. The sensor shall be a solid state type relative humidity sensor of the Bulk Polymer Design. The sensor element shall resist service contamination.

2. Humidity transmitter shall be equipped with non-interactive span and zero adjustments, a 2 wire isolated loop powered, 4-20 mA, 0-100% linear proportional output.

3. Outside air relative humidity sensors shall be installed with a rain proof, perforated cover. The transmitter shall be installed in a NEMA 3R enclosure with sealtite fittings and stainless steel bushings.

4. Provide a single point humidity calibrator, if required, for field calibration. Transmitters shall be shipped factory pre-calibrated.

5. Duct type sensing probes shall be constructed of 304 stainless steel and be equipped with a neoprene grommet, bushings and a mounting bracket.

6. Acceptable Manufacturers: Vaisala, General Eastern, Hy - Cal.

D. Differential Pressure Transmitters

1. General air and water pressure transmitter requirements:

a. Pressure transmitters shall be constructed to withstand 100% pressure over-range without damage and to hold calibrated accuracy when subject to a momentary 40% over-range input.




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b. Pressure transmitters shall transmit a 0 to 5 vdc, 0 to 10 vdc, or 4 to 20 mA output signal.

c. Provide a minimum of a NEMA 1 housing for the transmitter. Locate transmitters in accessible local control panels whenever possible.

d. Provide a two year warranty from the date of final acceptance of the project for each transmitter. Replace all transmitters found to be defective at no cost to the City during the warranty period.

2. Low differential air pressure applications (0" to 5" w.c.):

a. The differential pressure transmitter shall be of industrial quality and transmit a linear output in response to variation of differential pressure or air pressure sensing points.

b. The differential pressure transmitter shall have non-interactive zero and span adjustments adjustable from the outside cover and meet the following performance specifications:

(1) (0.00 - 1.00” to 5.00") w.c. input differential pressure ranges. Select range appropriate for system application.

(2) 4-20 mA or 0-10 vdc outputs

(3) Maintain accuracy up to 20 to 1 ratio turndown

(4) Reference Accuracy: + 1.0% of full span

c. Acceptable Manufacturers: Modus, Ashcroft, Kele & Associates

3. Static pressure traverse probe:

a. Provide duct static traverse probes where required to monitor duct static pressure. Probe shall contain multiple static pressure sensors located along exterior surface of the cylindrical probe.

E. Flow Monitoring

1. Air flow monitoring:

a. Duct air flow measuring stations:

(1) Each device shall be built to comply with, and provide results in accordance with, accepted practice as defined for system testing in the ASHRAE Handbook of fundamentals, as well as the Industrial Ventilation Handbook.

(2) Airflow measuring stations shall be fabricated of 14 gauge galvanized steel welded casing with 90 Deg.




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connecting flanges in configuration and size equal to that of the duct it is mounted into. Each station shall be complete with an air directionalizer and parallel cell profile suppressor (¾" maximum cell) across the entering air stream and mechanically fastened to the casing in such a way to withstand velocities up to 6000 feet per minute. This air directionalizer and parallel cell honeycomb suppressor shall provide 98% free area, equalize the velocity profile, and eliminate turbulent and rotational flow from the air stream prior to measuring point.

(3) The total pressure measurement side (high side) shall be spaced to the Industrial Ventilation Manual 16th Edition. The self-averaging manifolding will be manufactured of brass and copper components.

(a) The static pressure sensing probes (low side) shall be bullet-nose shaped, per detailed radius as illustrated in Industrial Ventilation Manual 16th Edition.

(b) The main take-off point from both the total pressure and the static pressure manifolds must be symmetrical.

(c) Total and static pressure manifolds shall terminate with external ports for connection to control tubing provided under this Section. An identification label shall be placed on each unit casing listing model number, size, area, and specified airflow capacity.

(4) The velocity pressure transmitter shall be of industrial quality and transmit a linear output in response to variation of differential pressure.

(a) Velocity pressure transmitters used for flow measurement shall be sized to the flow sensing device and shall be supplied with tee fittings and shut-off valves in the high and low sensing pick-up lines to allow the Contractor and City permanent easy-to-use connection.

(b) The velocity pressure transmitter shall have automatic zero feature and non-interactive span adjustments.

(c) Transmitter shall provide the following:

1) Select range appropriate for system application.




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2) 4-20 mA or 0-10 vdc outputs

3) Maintain accuracy up to 20 to 1 ratio turndown

4) Reference Accuracy: + 0.25% of full span

(5) Installation considerations:

(a) The maximum allowable pressure loss through the Flow and Static Pressure elements shall not exceed .065" w.c.. at 1000 feet per minute, or .23" w.c.. at 2000 feet per minute. Each unit shall measure the airflow rate within an accuracy of plus 2% as determined by U.S. - GSA certification tests and shall contain a minimum of one total pressure sensor per 36 square inches of unit measuring area.

(b) The units shall have a self-generated sound rating of less than NC40 and the sound level within the duct shall not be amplified nor shall additional sound be generated.

(c) Where the stations are installed in insulated ducts, the airflow passage of the station shall be the same size as the inside airflow dimension of the duct. Station flanges shall be two inch to three inch to facilitate matching connecting ductwork.

(d) Stations shall be installed in strict accordance with the manufacturer's published requirements, and with ASME Guidelines affecting non-standard approach conditions.

(e) Air flow measuring stations shall be furnished complete with velocity pressure transmitters as selected by the station manufacturer.

(6) Manufacturers:

(a) Acceptable manufacturers are Air Monitor Corp., Tek-Air, Ebtron, Paragon Controls, Inc.

F. Carbon Monoxide Detectors

1. The carbon monoxide sensor shall be of maintenance free solid state construction and use a microprocessor based transmitter which calculates various calibration factors and transmits a linear 4 - 20 Ma output proportional to carbon monoxide concentration.




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2. The combined sensor/transmitter shall meet the following specifications:

3. Duct mounted installations shall be equipped with an insertion probe and mounted in a NEMA 1 enclosure. If exterior sensors are used they shall be mounted in a NEMA 12 enclosure.

4. Provide a calibration test kit complete with a calibration apparatus, carrying case and test gas cylinder.

5. Provide individual indicators and contactors for each level, initially calibrated for 50 ppm and 100 ppm.

6. Maximum response time to 100 ppm CO calibration gas: Two minutes.

7. Acceptable Manufacturers: MSA Instruments, National Drager, Yokogowa

G. Carbon Dioxide Sensors

1. Carbon dioxide detector shall employ non-dispersive infrared (NDIR) technology. Sensor range shall be no greater than 0-2000 PPM. Sensor shall be accurate to within + 100 PPM. Alarm setpoint resolution shall be + 20 PPM minimum and operating hysteresis of + 50 PPM.

2. Sensor shall provide automatic zero compensation and allow user zero and span calibration adjustments.

3. Sensor shall produce both a dry contact alarm signal and a 0-5 vdc, 0-10 vdc or 4-20 mA proportional signal.

4. Sensor ambient operating ranges shall be 32 to 122 deg. F. and 10 to 95% RH non-condensing.

5. Sensor shall operate on 24 vdc.

6. Provide plastic aspiration box and perforated metal intake tube for all duct mounted sensors.

7. Provide one carbon dioxide sensor calibration kit and two calibration gas refill bottles. Calibration bottle shall contain approximately 12 liters of carbon dioxide/nitrogen gas mixture with 800-1000 PPM concentration of carbon dioxide. Exact concentration shall be + 20 PPM and marked on bottle. Kit shall include shut-off valve, adapter blanket, 18” Tygon tubing and user instruction manual.

H. Smoke Detectors

1. Duct smoke detectors shall be of the ionization type. Each detector shall provide at least two alarm contacts and one trouble contact. Detectors shall operate on any of three input voltages: 115 vac, 24 vac or 24 vdc.




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2. Air sampling shall be accomplished by separate intake and exhaust air sampling tubes. Intake sampling tube shall be the full width of the duct with 7.5" long exhaust tube. Detector shall be capable of sampling air in the 300 to 4000 fpm range.

3. Remote alarm/test/reset alarm station shall be furnished for each detector. Station shall provide visual indication of alarm (red LED) and pilot (green LED). Stations mounted inside key lock local control panels shall be furnished with push button test/reset switch. Stations mounted outside control panels shall be furnished with key-operated test/reset switch.

I. Status and Safety Switches


a. Switches shall be provided to monitor equipment status, safety conditions and generate alarms at the BAS when a failure or abnormal condition occurs. If applicable, safety switches shall be provided with two sets of contacts and interlock wired to shut down respective equipment.

2. Current sensing switches:

a. Current sensing switches shall be used for run status for fans, pumps, and other miscellaneous motor loads.

b. Current sensing switch shall be self-powered with solid state circuitry and a dry contact output. It shall consist of a current transformer, a solid state current sensing circuit, adjustable trip point, solid state switch, SPDT relay and an LED indicating the on or off status. A conductor of the load shall be passed through the window of the device. It shall accept over current up to twice its trip point range.

c. Current sensing switches shall be calibrated to show a positive run status only when the motor is operating under load. A motor running with a broken belt or coupling shall indicate a negative run status.

3. Air filter status switches:

a. Differential pressure switches used to monitor air filter status shall be of the automatic reset type with SPDT contracts rated for 2 amps at 120 vac.

b. Provide complete installation kit including; static pressure tips, tubing, fittings and air filters.

c. Provide appropriate scale range and differential adjustment for intended service.

4. Air pressure safety switches:




M8119.15-00


a. Air pressure safety switches shall be of the manual reset type with SPDT contacts rated for 2 amps at 120 vac.

b. Pressure range shall be adjustable with appropriate scale range and differential adjustment for intended service.

5. Low temperature protection switches:

a. The low temperature protection switch shall be of the manual reset type with double pole / single throw snap acting contacts rated for 16 amps at 120 vac.

b. The sensing element shall be a minimum of 15 feet in length and shall react to the coldest 18 inch section. Mount element horizontally across duct in accordance with manufacturers recommended installation procedures.

c. For large duct areas where the sensing element does not provide full coverage of the air stream, provide additional switches as required to provide full protection of the air stream.

6. Sump pit high level switches:

a. Sump pit high level switch shall be a mercury filled micro switch enclosed in a water proof plastic float with attached cable.

b. Provide complete installation kit to hang float switch into sump pit.

2.03 OUTPUT DEVICES:

A. Actuators


a. Damper actuators and valve actuators shall be electrical where subject to freezing. Pneumatic control shall not be used where components are exposed to weather conditions.

b. Unless permitted otherwise by the Commissioner, the control method for new damper actuators and valve actuators shall be similar to existing.

2. Electronic damper actuators:

a. Electronic damper actuators shall be direct shaft mount as manufactured by Belimo Air Controls, Trane, Siebe, or Andover.

b. Provide modulating and two-position actuators as required by the sequence of operation. Provide only one actuator per damper section. Size damper sections based on actuator manufacturer’s recommendations for face velocity, differential pressure and damper type. The actuator mounting




M8119.15-00


arrangement and spring return feature shall permit normally open or normally closed positions of the dampers as required. All actuators (except terminal units) shall be furnished with mechanical spring return unless otherwise specified in the sequences of operations. All actuators shall have external adjustable stops to limit the travel in either direction and a gear release to allow manual positioning. All spring return actuators shall have a removable crank to override the actuator and manually position the damper. All damper actuators shall have a visual position indicator.

c. Modulating actuators shall accept 24 vac or vdc power supply and consume no more than 15 VA and be UL listed. Control signal shall be 2-10 vdc or 4-20 mA and actuator shall provide a clamp position feedback signal of 2-10 vdc. Feedback signal shall be independent of the input signal and may be used to parallel other actuators and provide true position indication. The feedback signal of one damper actuator for each separately controlled damper shall be wired back to a terminal strip in the control panel for trouble-shooting purposes. Example; wire back feedback signal from exhaust air damper actuator when this actuator receives its control signal from the return air damper actuator.

d. Two-position or open/closed actuators shall accept 24 or 120 vac power supply and be UL listed. Isolation, exhaust fan and other dampers as specified in the sequence of operations shall be furnished with adjustable end switches to indicate open/closed position or be hard wired to start/stop associated fan. Two-position actuators as specified in sequences of operation as “quick acting” shall move full stroke within 20 seconds.

e. Multi-section dampers with electronic actuators shall be arranged so that each damper section operates individually. One electronic actuator shall be direct shaft mounted per section. No connecting rods and stand-off brackets shall be necessary.

f. The Contractor shall warranty the damper actuator for a period of 2 years from the date of final acceptance of the project.

3. Electronic valve actuators:

a. Electronic valve actuators shall be manufactured by the valve manufacturer or Belimo Air Controls. Each actuator shall have current limiting circuitry incorporated in its design to prevent damage to the actuator.

b. Provide modulating and two-position actuators as required by the sequence of operation. Actuators shall provide the




M8119.15-00


minimum torque required for proper valve close-off against the system pressure for the required application. Size valve actuator based on valve manufacturer’s recommendations for flow and pressure differential. All actuators shall fail in the last position unless specified with mechanical spring return operation. The spring return feature shall permit normally open or normally closed positions of the valves as required. All direct shaft mount rotational actuators shall have external adjustable stops to limit the travel in either direction. All non spring return actuators shall have a gear release to allow manual positioning. All valve actuators shall have a visual position indicator.

c. Modulating actuators shall accept 24 vac or vdc and 120 vac power supply and be UL listed. Control signal shall be 2-10 vdc or 4-20 mA and actuator shall provide a clamp position feedback signal of 2-10 vdc. Feedback signal shall be independent of the input signal and may be used to parallel other actuators and provide true position indication. The feedback signal of each valve actuator (except terminal valves) shall be wired back to a terminal strip in the control panel for trouble-shooting purposes.

d. Two-position or open/closed actuators shall accept 24 or 120 vac power supply and be UL listed.

e. The manufacturer shall warranty the valve actuator for a period of 2 years from the date of final project acceptance.

4. Pneumatic valve actuators:

a. All valve actuators shall be piston type with ozone-resistant rolling diaphragms, corrosion resistant or oil-immersed gear train type suitable for service and torque requirements, and shall be fully proportioning unless otherwise specified. They shall have ample power to overcome friction of valve linkage and fluid pressure acting on the valve. All water valve actuators shall be selected to close off against the associated pump’s head pressure without chatter.

b. Provide modulating and two-position actuators as required by the sequence of operation. Actuators shall operate in sequence when required. Furnish actuators to permit normally open or normally closed position of the valves as required.

c. Modulating valves 2½" and larger shall be furnished with a pilot positioner of the full-relay type with mechanical feedback linkage to provide accurate positioning and control. Where multiple valve actuators are staged from a common output, provide a pilot positioner for each actuator regardless of valve size.




M8119.15-00


B. Control Valves


a. Control valves shall fail-safe open, closed, or in their last position as required. Refer to project drawings for specific notations. In general, provide spring return valve actuators to provide the following fail-safe valve operation.

(1) Air handling unit preheat coil control valves shall fail open to heat.

(2) Perimeter radiation, terminal reheat coil, radiant panel, unit heater and cabinet unit heater heating valves shall fail open to heat or in the last position.

(3) Perimeter secondary hot water system control valves shall fail open to heat. Reheat secondary hot water system control valves shall fail open to heat or in the last position.

(4) Air handling unit Chilled Water coil control valves shall fail open or in the last position. Chilled Water valves on air handling units serving equipment cooling shall fail open or in the last position.

b. Low Temperature Water (LTW) control valves for terminal reheat coils and unit heaters shall be modulating plug or ball as required by the specific application.

(1) Modulating plug water valves shall be single-seat type with equal percentage flow characteristics. Valve discs shall be composition type. Valve stems and seats shall be stainless steel.

(2) Ball valves shall have a 316 stainless steel ball and stem, reinforced seats and seals specific for the fluid temperatures, reduced port vs. full port whenever available and provided with actuators similar to Belimo.

2. High temperature water (HTW) control valves:

(a) Control valves for HTW service shall be cast steel 600 psi class, industrial grade cage guided, single port globe type, Fisher Type ES. Trim shall be 416 stainless steel and entire assembly shall be suitable for 450 deg. F. service at 460 psi water. Valves shall have contoured plugs for equal percentage flow, radiating fin type bonnets and Garlock 8892 packing.

3. Chilled Water control valves:




M8119.15-00


(a) Valve shall control and operate properly with no vibration, noise, or cavitation with a 125 psi differential.

a. Chilled Water Control Valve Inlet Pressures: Typical range 40 to 100 psi, 120 psi max.

b. Sized for a pressure drop suitable for the minimum differential pressure not to exceed 5 psi between the supply and return mains at the point of installation of the control valve.

c. Flanged 150 lb. ANSI Class.

d. Cleaning of pipe system shall be complete before installation of flanged control to protect seats.

e. A strainer shall be installed immediately upstream of the control valve.

f. Valve shall have 300-to-1 turn down.

g. Minimum material requirements:

(1) Ball - Chromium-plated stainless steel ball with Class VI Shutoff.

(2) Body - Cast Steel, ASTM A216 WCC, or greater.

(3) Shaft - 17-4 PH Stainless Steel, splined, with PTFE V-ring packing.

h. The valve used shall be as required by the Commissioner. Acceptable valves shall be Fisher V150, V200, or V300 Vee-Ball.

4. Radiation valves:

a. Bronze body, bronze trim, 2 or 3 port as indicated, replaceable plugs and seats, union and threaded ends.

b. Rate for service pressure of 125 psig at 250 deg. F.

c. Size for 3 psig maximum pressure drop at design flow rate.

d. Operators (Modulating): Self contained, linear motorized actuator with approximately 3/4 inch stroke, 60 second full travel with transformer and SPDT contacts: 24 vdc, 6 watt maximum input.

5. Contractor shall warranty their valve assembly including actuator for a period of 2-years from the Date of Substantial Completion.

C. Control dampers:

1. The Contractor shall furnish all automatic dampers. All automatic dampers shall be sized as indicated on the Drawings. Contractor is to verify the required size.




M8119.15-00


2. All dampers used for throttling air flow shall be of the opposed blade type arranged for normally open or normally closed operation as required. The damper is to be sized so that when wide open the pressure drop is a sufficient amount of its close-off pressure drop to shift the characteristic curve to near linear.

3. All dampers used for two-position open/close control shall be parallel blade type arranged for normally open or closed operation as required.

4. Damper construction shall comply to the following:

a. Damper frames shall be 0.080" minimum thickness aluminum and no less than 4" wide. Factory stiffening bars shall be provided for any section exceeding 48" in height.

b. Damper blades shall be heavy gauge 6063T5 extruded aluminum air foil with a blade width not to exceed 6". Maximum blade length in any section shall not exceed 60".

c. Damper bearings shall be dual-bearing type with inner bearings made of Celcon and outer bearings made of polycarbonate. This bearing system shall be maintenance-free, require no lubrication and require minimal operating torque.

d. Damper linkage hardware shall be constructed of aluminum and corrosion resistant zinc & nickel plated steel. Linkage shall be exposed on the frame side for inspection and service. Linkage concealed in the damper frame after installation is not acceptable. Damper drive pin shall be hex shaped and a provide flat-on-flat connection to the drive blade and crank arm. Drive pin shall extend into drive blade at least 8". Provide 24" drive pin for blades longer than 30" and subjected to 4" or more static pressure. Provide 36" drive pin for 44" long blades with a 4" static pressure.

e. Damper blade and side seals shall be of the following materials:

(1) Exterior dampers in contact with the outdoors (OA & EA) shall have silicon blade and side seals to maintain flexibility in cold weather. The leakage rate increase at -10 deg. F. shall be less than 12% from the AMCA Std. 500 rating (50-104 deg. F.).

(2) Interior dampers (RA) shall have EPDM blade seals and TPE side seals. Damper of 48"x48" size shall not leak in excess of 4 cfm per square foot when closed against 4" w.g. static pressure when tested in accordance with AMCA Std. 500.




M8119.15-00


f. Manufacturer shall supply alignment plates for all multi-section dampers.

g. Acceptable manufacturers are or similar to Tamco Series 1500, Ruskin, West Vent, or Maxam.

5. Damper mounting arrangements shall comply to the following paragraphs when provided with electronic actuators.

a. Multi-section dampers with electronic actuators shall be arranged so that each damper section operates individually. One electronic actuator shall be direct shaft mounted per section. Size damper sections based on actuator manufacturer’s specific recommendations for face velocity, differential pressure and damper type. In general, damper section with a face velocity of 1500 fpm or less shall not exceed 24 sq. ft. Damper section with a face velocity of no more than 2500 fpm shall not exceed 18 sq. ft. Damper section with a face velocity of no more than 3000 fpm shall not exceed 13 sq. ft.

b. Multiple section dampers of two or less sections wide shall be arranged to allow actuators to be direct shaft mounted on the outside of the duct.

c. Multiple section dampers of three or more sections wide shall be arranged with a 3-sided vertical channel (8" W x 6" D) within the duct or fan housing and between adjacent vertical damper sections. Vertical channel shall be anchored at the top and bottom to the fan housing or building structure for support. The sides of each damper frame shall be connected to the channels. Holes in the channel shall allow damper drive blade shafts to pass through channel for direct shaft mounting of actuators. Open side of channel shall be faced downstream of the air flow, except for exhaust air dampers.

d. Multiple section dampers to be mounted flush within a wall or housing opening shall receive either vertical channel supports as described above or sheet metal stand-out collars. Sheet metal collars (12” minimum) shall bring each damper section out of the wall to allow direct shaft mounting of the actuator on the side of the collar.

e. It shall be the responsibility of the Contractor to furnish the dampers and coordinate specific damper support and collar requirements. The Contractor shall furnish and install damper channel supports and sheet metal collars. No jack shafting of damper sections shall be allowed.

D. Damper Position Indicators




M8119.15-00


1. Potentiometer mounted in enclosure with adjustable crank arm assembly connected to damper to transmit 0 - 100 percent damper travel.

E. Control Relays

1. Control pilot relays:

a. Control pilot relays shall be of a modular plug-in design with retaining springs or clips.

b. Mounting bases shall be snap-mount.

c. Provide DPDT, 3PDT or 4PDT relays as appropriate for application. Relays shall have one spare SPDT set of contacts.

d. Contacts shall be rated for 10 amps at 120VAC.

e. Wire Size: 2-#12 AWG per terminal

f. Terminal: M3.5 screws with captive wire clamp

g. Relays shall have an integral indicator light and check button.

2.04 MISCELLANEOUS ITEMS:

A. Power Supplies

1. DC power supplies:

a. DC power supplies shall be sized for the connected device load. Total rated load shall not exceed 75% of the rated capacity of the power supply.

b. Minimum performance requirements:

(1) Input: 120 vac +10%, 60 Hz

(2) Output: 24 vdc

(3) Line Regulation: +0.05% for 10% line change

(4) Load Regulation: +0.05% for 50% load change

(5) Ripple and Noise: 1 mV rms, 5 mV peak to peak

c. Provide an appropriately sized fuse and fuse block located next to power supply.

d. Provide power disconnect switch next to power supply.

B. Surge Protectors

1. Data line surge protectors:




M8119.15-00


a. Data line surge protectors shall be provided on all voice grade phone lines. Connection shall be by RJ11 terminations.

b. Minimum performance requirements:

(1) DC Break Over Voltage: 210-265 volts

(2) Standoff Voltage (minimum): + 180 volts

(3) Leakage Current (max @ 60 Hz): 10 micro amps

(4) Holding Current (minimum): 150 mA

(5) Peak On-State Voltage: 3 Volts

(6) Response Time: 1 nanosecond

(7) Capacitance: Less than 100 pf

(8) Over-Current Limiting: Per UL 497A

2. Power line surge protectors:

a. Power line surge protectors shall be provided for each DDC system controller which does not provide integral surge suppression meeting the minimum performance as specified herein.

b. Power line surge protectors shall be solid state and shall be designed to protect electronic equipment form unwanted surges and spikes that may be present on the power input lines.

c. Minimum performance requirements:

(1) Continuous Current Rating: 15 amps

(2) Max Single Pulse Transient Current: 6500 amps

(3) Max Energy Handling Rating: 240 joules.

(4) Response Time: Less than 5 nanoseconds

(5) Peak Pass-through Voltage: Normal Mode: 425 volts at 3000 amps, Common Mode: 400 volts at 3000 amps

(6) Nominal Operating Voltage: 120 vac single phase, three wire (L,N,G)

(7) UL Suppression Rating: 500 Volts

d. Protector shall have an integral indicator light which shall be illuminated when operational.

C. Digital to Pneumatic Transducers

1. Convert continuous proportional current or voltage to 0 to 20 psi.

D. Control Panels




M8119.15-00


1. Identify all panel locations in the submittals for review prior to installation.

2. Unitized cabinet type for each system under automatic control with relays and controls mounted in cabinet and temperature indicators, pressure gages, pilot lights, push buttons and switches flush on cabinet panel face.

3. Each control panel shall have a network hub that allows an operator with approved security codes a direct communication link to the Primary LAN through the use of a portable computer. This connection will be available at speed of no less than 10 megabaud.

4. Provide a primary means of service disconnect at each panel. Service disconnect shall be made vandal proof by means of a keyed disconnect. Keyed disconnects shall be the same for all panels. Turn over to the Commissioner 10 keys upon project close-out.

5. A utility outlet shall be provided at each control panel. Outlet shall be marked as “Temperature Control Use Only”.

6. Each control panel shall have a LCD display that allows the operator to view system data without the use of a portable or other network device. All data associated within the control panel shall be viewable at the device. Should the operator wish to modify a set-point, the operator shall be able to do so through the LCD display without alternative communication equipment with the use of an approved security clearance at the device.

7. NEMA 250, general purpose utility enclosures with enameled finished face panel shall be provided.

8. Where panels are not wall mounted, provide floor stand made of "Unistrut" securely braced, anchored, and free from vibration.

9. Instruments shall be identified with plastic laminates with edge block lettering.

PART 3 EXECUTION:

3.01 INSTALLATION:

A. Thermostats

1. Check and verify location of thermostats, humidistats and other exposed control sensors with plans and room details before installation. Locate (60 inches) above floor. Align with lighting switches.

2. Mount freeze protection thermostats using flanges and element holders.

3. Mount outdoor reset thermostats and outdoor sensors indoors, with sensing elements outdoors with sun shield.




M8119.15-00


4. Provide separable sockets for liquids and flanges for air bulb elements.

5. Provide guards on thermostats in public areas and where indicated.

B. Dampers

1. Provide mixing dampers of opposed blade construction arranged to mix streams. Provide pilot positioners on mixed air damper motors. Provide separate minimum outside air damper section adjacent to return air dampers with separate damper motor.

2. Provide pilot positioners on pneumatic damper operators sequenced with other controls.

3. Install damper motors on outside of duct in warm areas. Do not install motors in locations at outdoor temperatures.

C. Control Panels

1. Mount control panels adjacent to associated equipment on vibration- free walls or free standing angle iron supports. One cabinet may accommodate more than one system in same equipment room. Provide engraved plastic nameplates for instruments and controls inside cabinet and engraved plastic nameplates on cabinet face.

2. Install "hand/off/auto" selector switches to override automatic interlock controls when switch is in "hand" position. All HOA switches and potentiometers shall be either integrated in to the controller (this is basic of design) or mounted to the faces of the control panels, labeled as to its use and provide means of operating the equipment manually if needed. No HOA switch is required when a HOA is located at the MCC for the equipment being controlled. Submit product data for Keyed Switches to be approved by the Commissioner.

3. Provide conduit and electrical wiring in accordance with Division 16. Electrical material and installation shall be in accordance with appropriate requirements of Division 16.

3.02 ADJUSTMENT AND CALIBRATION:

A. Upon completion of installation, adjust, calibrate, and validate all controllers, damper operators, relays, valves, motors, thermostat, and other control equipment provided as work of this Section.

B. Ensure complete operation of systems, including sequence of control operation after Date of Substantial completion.

C. Demonstrate complete, operating and functioning systems to Commissioner for acceptance.




M8119.15-00


3.03 INSTRUCTIONS:

A. City's operating personnel shall be trained in the complete operation of the control systems installed for a period of three (3) eight-hour days at the project location.

B. A complete diagram of controls shall be mounted in each equipment room. The diagram shall be on high quality paper and framed behind a glass surface.


GEOTECHNICAL REPORT

Proposed AMC Improvements

Chicago Midway Airport

Chicago, Illinois

Prepared for:

Mr. Ryan Hall, AIA, LEED

RS&H Illinois, Inc.

300 West Adams Street, Suite 400

Chicago, Illinois 60606

Prepared by:

Geo Services, Inc.

805 Amherst Court

Suite 204

Naperville, Illinois 60565

(630) 305-9186

GSI Job. 16120

March, 2018

805 Amherst Court, Suite 204 Naperville, IL 60565-3448 Phone (630) 305-9186 Fax (630) 355-2838

www.geoservicesinc.net

March 16, 2018

Draft Submitted: January 18, 2017

RS&H Illinois, Inc. 300 West Adams Street, Suite 400 Chicago, Illinois 60606 Attention: Mr. Ryan Hall, AIA, LEED

GSI Job No. 16120 Re: Geotechnical Investigation Proposed AMC Improvements Chicago Midway Airport

Chicago, Illinois Dear Mr. Hall: The following report presents the geotechnical analysis and recommendations for the proposed Additional Vehicle Storage Building as part of the AMC improvements located at the Chicago Midway Airport in Chicago, IL. A total of six (6) soil borings (SB-01 to SB-06) were completed at the site by Geo Services, Inc. (GSI) for this project. Copies of the boring logs, location diagram and lab testing results are included in this report. If there are any questions with regard to the information submitted in this report, or if we can be of further assistance to you in any way, please do not hesitate to contact us. Very truly yours, GEO SERVICES, Inc.

Richard R. Realeza Stephen A. Bucher, P.E. Staff Engineer Senior Geotechnical Engineer Office Phone: (847) 253-3845x202 Office Phone: (847) 253-3845x203 [email protected] [email protected] enc.

TABLE OF CONTENTS SECTION 01: INTRODUCTION ............................................................................................... 2 SECTION 02: PROJECT DESCRIPTION ................................................................................ 2 SECTION 03: SUBSURFACE INVESTIGATION PROCEDURES ...................................... 2 SECTION 04: LAB TESTING PROGRAM .............................................................................. 3 SECTION 05: SUBSURFACE CONDITIONS .......................................................................... 3

Soil Conditions .......................................................................................................... 3 Groundwater Conditions ............................................................................................ 3

SECTION 06: RECOMMENDATIONS .................................................................................... 4

Recommended Foundation Types ............................................................................ 4 Shallow Foundations ................................................................................................. 4 Pavement/Floor Slab-On-Grade Construction ........................................................... 5

SECTION 07: GENERAL CONSTRUCTION CONSIDERATIONS .................................... 6 SECTION 08: GENERAL QUALIFICATIONS ....................................................................... 6

ATTACHMENTS: General Notes Boring Location Plan Soil Boring Logs Lab Testing Results

Geotechnical Investigation GSI PROJECT 16120 Proposed Additional Vehicle Storage Building Chicago, IL Chicago Midway Airport

PAGE 2

SECTION 01: INTRODUCTION The following report presents the geotechnical analysis and recommendations for the proposed Additional Vehicle Storage Building as part of the AMC improvements located at the Chicago Midway Airport in Chicago, IL. A total of six (6) soil borings (SB-01 to SB-06) were completed at the site by Geo Services, Inc. (GSI) for this project. General boring locations were selected by Reynolds, Smith and Hills (RS&H) in consultation with Geo Services, Inc. (GSI). Boring locations were marked and surveyed in the field by the client’s (RS&H) surveyor, Dynasty Group. SECTION 02: PROJECT DESCRIPTION The proposed Additional Vehicle Storage Building will be included as part of the AMC Improvements located at the Chicago Midway Airport in Chicago, Illinois. The new pre-fabricated structure will be a stand-alone structure located to the south of the existing AMC building, and is estimated to enclose approximately 50,000 square feet of heated space. Structural loads have not been provided. For purposes of this report, we have considered maximum column loads of about 125 kips, and maximum wall loads of about 3 kips per linear foot. Floor loads are assumed to be no greater than about 250 psf. The purpose of this report is to describe the soil conditions encountered in the borings, to analyze and evaluate the data obtained, and to submit recommendations regarding the design and construction of the proposed additional vehicle storage building. SECTION 03: SUBSURFACE INVESTIGATION PROCEDURES The borings were performed on November 7 and 8, 2016. Borings SB-01 to SB-06 were drilled using a truck-mounted drilling rig and were advanced by means of hollow stem augers techniques. Representative soil samples were obtained employing split spoon sampling procedures in accordance with AASHTO Method T-206. Split spoon sampling involves driving a 2-inch outside diameter split-barrel sampler into the soil with a 140-pound weight falling freely through a distance of 30 inches. Blow counts are recorded at 6-inch intervals and the blow counts are shown on the boring logs. The number of blows required to advance the sampler the last 12 inches is termed the Standard Penetration Resistance (N). The N value is an indication of the relative density of the soil and, to some degree, the consistency of cohesive soils. The test procedures were performed in accordance with test procedures discussed in the IDOT Geotechnical Manual. All split-spoon samples obtained from the drilling operation were visually classified in the field. Cohesive samples were tested for unconfined compressive strength using an IDOT modified RIMAC test device and/or calibrated penetrometer in the field. Samples obtained in the field were delivered to GSI


PAGE 3

laboratory for further examination and testing. SECTION 04: LAB TESTING PROGRAM The soil testing program included performing water content, density and either unconfined compression and/or calibrated penetrometer tests on the cohesive samples recovered. Water content tests were performed on all of the samples recovered. These tests were performed upon representative portions of the samples obtained in the field. The results of the above testing, along with a visual classification of the material based upon the ASTM Soil Classification System, are indicated on the boring logs. In addition to the general laboratory testing described above, the Atterberg Limits (AASTHO T89/T90), Particle Sizing Analysis (ASTM D422), Modified Proctor (ASTM D1557, Procedure A) and California Bearing Ratio or CBR (ASTM D1883) tests were completed on the bulk composite sample obtained from the areas of boring SB-03 and SB-04. The results of the lab testing are in the Attachment section of this report.

SECTION 05: SUBSURFACE CONDITIONS Soil Conditions At borings SB-01 to SB-03, existing pavement consists of 15 to 18 inches of asphalt. At borings SB-04 to SB-06, existing pavement consists of 5 to 6 inches of asphalt over 4 to 6 inches of concrete. The base course underlying the pavement section consisted of about 18 inches of sand, stone, cinders and/or crushed asphalt fill materials at a majority of the borings, with the exception of boring SB-03, which encountered about 18 inches of buried topsoil beneath the pavement. Below the pavement section and fill soils, strata of stiff to hard lean clay soils were typically encountered to termination of the borings at approximate depth of 25 feet below ground surface. Moisture contents of the cohesive soils were typically between 15% to 25%. Fill materials had moisture contents that were typically between 4% to 24%, and buried topsoil had moisture content of 38%. Groundwater Conditions Groundwater was encountered at a majority of the borings at approximate depth of 24 feet below ground level during and upon drilling completion. Based on the coloration change in the soil from brown and gray to gray, we estimate the long-term groundwater table at 10 to 15 feet below ground level. Fluctuations in the amount of water accumulated and in the hydrostatic water table level can be anticipated depending on


PAGE 4

the variations in precipitation and surface runoff.

SECTION 06: RECOMMENDATIONS Recommended Foundation Types Based on the subsurface conditions encountered at the boring locations, support of the new building foundations on shallow footing foundations is recommended. Conventional spread footings or shallow drilled piers such as were used to support the existing AMC building, are considered feasible. Economic, construction and scheduling factors should be evaluated for the decision of the shallow foundation design. The following subsection provides a general discussion of soil conditions as they relate to the shallow foundation construction. Shallow Foundations Considering a finished floor level for the proposed vehicle storage building at, or close to, the existing pavement level, the bottom of footing is assumed to be at a minimum depth of 4 feet below existing grade. Based on the soil boring information, stiff to hard native lean clay soils should provide adequate support for the shallow spread footing foundations, and can be designed for a maximum net allowable bearing pressure of 3,500 pounds per square foot (psf). For foundations extended deeper to bear on the hard clay at a depth of about 7 feet below grade, a net allowable bearing pressure of 6,000 psf could be used for design. The net allowable soil bearing pressure refers to that pressure which may be transmitted to the foundation soils in excess of the final minimum surrounding overburden pressure. Due to the favorable soil bearing conditions (at assumed bearing elevation of 4 feet below ground level), additional undercutting is not expected. However, if unsuitable soils are encountered at the bearing level, then undercutting may be needed. Overexcavations, if any, should be filled with lean concrete or a suitable compacted crushed stone structural fill material. Suitable crushed stone fill materials include materials meeting the gradation requirements of IDOT CA-1 or CA-7 crushed stone. Total settlement of shallow footing foundations situated within the native clay soils or compacted structural fill is estimated to be less than 1/2 inch. Structural fill utilized to support footings should be extended at least 6 inches beyond the proposed footing limits and then one foot horizontally for each one foot of fill placed below the base of the footing. This new fill should consist of inorganic material free of debris. If CA-1 or CA-7 crushed stone materials are used, they should be placed in maximum 18-inch loose lifts and can be compacted by tamping with a backhoe bucket to the Engineer’s satisfaction. The moisture content of the fill should be controlled within ±2% of the optimum moisture content. To provide adequate frost protection, we recommend that footing foundations in non-


PAGE 5

heated areas be situated at a minimum depth of 4 feet below final grade. Also, in order to prevent disproportionately small footings, we recommend that continuous wall footings have a minimum width of 1.5 feet and that isolated column footings have a minimum lateral dimension of 2.5 feet. Pavement/Floor Slab-On-Grade Construction We understand that the existing pavement will be removed and replaced with new pavement and interior floor slabs, and will match the existing pavement elevations (about 614.5 feet). Pavement/Floor Slab-on-grade areas may be supported on firm, compact existing fill soils or on a layer of controlled, structural fill. The subgrade at the bottom of the pavement slab elevation should be observed by a geotechnical engineer and any organic, unsuitable or deleterious material removed. Based on the results of the borings, we recommend that top 12 inches of subgrade be stripped, and the exposed subgrade will be recompacted to achieve stable conditions for all subgrade areas. Proofrolling of the resultant subgrade should be performed to locate objectionable soils that should be removed. During the proofrolling procedure, the stripped soil surface is rolled with the heaviest piece of construction equipment available at the site, such as a heavily loaded tandem axle dump truck having a gross weight of not less than 25 tons. Areas exhibiting deflection or rutting should be removed (or disked, dried and recompacted) and the proofrolling continued until all unsuitable soils have been located and removed, or improved in-place. Where new fill is required to reach the design subgrade elevation, we recommend that an approved inorganic material be utilized. This material should consist of material that is free of organic matter, topsoil, and debris. Low plasticity cohesive soil should have a liquid limit of less than 45% and a plasticity index less than 20%, and the moisture content of the fill should not vary by more than ±3% of the optimum moisture content. Fill material used in pavement and interior floor slab-on-grade subgrade that may be exposed to freezing temperatures should also be non-frost susceptible. The fill materials should be placed during weather conditions and at moisture contents that permit the recommended degree of compaction to be obtained. New fill should be placed in maximum 9-inch thick loose lifts and be compacted to a minimum of 90% of the maximum dry density obtained in accordance with ASTM Standard D-1557, modified Proctor method. Where pavement areas are to be utilized by vehicle traffic or in slab-on-grade areas that will support loads in excess of 500 psf, the fill should be compacted to a minimum of 95% of the dry density referenced above. Beneath slab-on-grade areas, a minimum of 6 inches of granular material is recommended to facilitate fine grading and provide a capillary cut-off. Floor slabs should be isolated from foundations to permit relative displacement without cracking. Floor slabs should also be provided with adequate reinforcing and jointing to control minor slab cracking. For the design of the new paved areas, we recommend that a CBR/IBR value of 2.0 be used in the pavement design.


PAGE 6

SECTION 07: GENERAL CONSTRUCTION CONSIDERATIONS All excavations that extend greater than 4 feet in depth should be designed in accordance with OSHA regulations with properly sloped or braced sides to prevent excavation instability. Excavation safety is the responsibility of the contractor; however, we recommend that excavation sides be sloped at 1-1/2H:1V or flatter above the water table for this purpose. Stockpiles of material or equipment should not be placed near the top of excavation slopes. All soils which become softened or loosened at the base of foundation excavation areas or subgrade areas should be carefully recompacted or removed prior to placement of foundation concrete or fill material. No foundation concrete or structural fill should be placed in areas of ponded water or frozen soil. It is recommended that all foundation subgrade soils be observed by an experienced geotechnical engineer or his field representative prior to placement of concrete or fill, in order to confirm that the subgrade conditions are consistent with the design assumptions and recommendations contained in this report. Periodic density testing should be performed on any fill in order to document that density requirements have been met.

SECTION 08: GENERAL QUALIFICATIONS The analysis and recommendations presented in this report are based upon the data obtained from our soil borings performed at the indicated locations. This report does not reflect any variations that may occur between borings or across the site. In addition, the soil samples cannot be relied on to accurately reflect the strata variations that usually exist between sampling locations. The nature and extent of such variations may not become evident until construction. If variations appear evident, it will be necessary to reevaluate the recommendations of the report. In addition, it is recommended that Geo Services Inc. be retained to perform construction observation and thereby provide a complete professional geotechnical engineering service through the observational method. This report has been prepared for the exclusive use of our client for specific application to the project discussed and has been prepared in accordance with generally accepted geotechnical engineering practices. No other warranties, either expressed or implied, are intended or made. In the event that any changes in the nature, design or location of the project as outlined in this report are planned, the conclusions and recommendations contained in this report shall not be considered valid unless the changes are reviewed and the conclusions of this report modified or verified in writing by the geotechnical engineer. Also note that Geo Services Inc. is not responsible for any claims, damages, or liability associated with any other party’s interpretation of this report’s subsurface data or reuse of the report’s subsurface data or engineering analyses without the express written authorization of Geo Services Inc.

ATTACHMENTS

805 Amherst Court, Suite 204 Naperville, IL 60565-3448 Phone (630) 305-9186 Fax (630) 355-2838

www.geoservicesinc.net

GENERAL NOTES CLASSIFICATION Unified Soil Classification System used for soil classification. Cohesionless Soils Relative No. of Blows TERMINOLOGY Density per foot N Streaks are considered to be paper thick. Very Loose 0 to 4 Lenses are considered to be less than 2 Loose 4 to 10 inches thick. Layers are considered to Medium Dense 10 to 30 be less than 6 inches thick. Stratum are Dense 30 to 50 considered to be greater than 6 inches thick. Very Dense Over 50 Cohesive Soils Unconfined Compressive Consistency Strength - qu (tsf) Very Soft Less than 0.25 Soft 0.25 - 0.5 Medium Stiff 0.5 - 1.0 Stiff 1.0 - 2.0 Very Stiff 2.0 - 4.0 Hard Over 4.0 DRILLING AND SAMPLING SYMBOLS SS: Split Spoon 1-3/8" I.D., 2" O.D. HS: Housel Sampler ST: Shelby Tube 2" O.D., except where noted WS: Wash Sample AS: Auger Sample FT: Fish Tail DB: Diamond Bit - NX: BX: AX RB: Rock Bit CB: Carboloy Bit - NX: BX: AX WO: Wash Out OS: Osterberg Sampler Standard "N" Penetration: Blows per foot of a 140 lb. hammer falling 30" on a 2" O.D. Split Spoon WATER LEVEL MEASUREMENT SYMBOLS WL: Water WD: While Drilling WCI: Wet Cave In BCR: Before Casing Removal DCI: Dry Cave In ACR: After Casing Removal WS : While sampling AB: After Boring Water levels indicated on the boring logs are the levels measured in the boring at the times indicated. In pervious soils, the indicated elevations are considered reliable ground water levels. In impervious soils, the accurate determination of ground water elevations is not possible in even several days observation, and additional evidence on ground water elevations must be sought.

1235 East Davis Street, Suite 101Arlington Heights, IL 60005(847) 253-3845

Liquid Limit, Plastic Limit, and Plasticity Index of Soils AASHTO T89/T90

Project Name Midway Airport Maintenance Complex Addition Job No 16120

Location West 63rd Street, Chicago, Illinois Date 3/14/17

Client RSH

Boring No. SB-03A SB-04ASample No. S-1 S-1Depth 1.5'-3.0' 3.5'-5.0'LIQUID LIMIT (LL) 42 43PLASTIC LIMIT (PL) 21 18PLASTICITY INDEX (PI) 21 25

Tested by MT

1.142.126.830.0Job No 16120 % Clay Phone 847-253-3845 ● Fax 847-253-0482

Date 3/14/17 % SandReviewed By SB % Silt 1235 E. Davis St., Arlington Heights, IL 60005

Plasticity Index 21Test By MT % Gravel

Liquid Limit 42 black Maintenance Facility Complex AdditionPlastic Limit 21 West 63rd Street, Chicago, IL

Boring No. SB-03A CLASSIFICATION-ASTM D 2487 PARTICLE SIZE ANALYSIS-ASTM D 422Sample No. 1

SANDY LEAN CLAY (CL)Depth 1.5'-3.0' Chicago Midway Airport

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GRAVEL SANDCOARSE MEDIUM FINE CLAYSILT

0.015.725.159.3Job No 16120 % Clay Phone 847-253-3845 ● Fax 847-253-0482

Date 3/14/17 % SandReviewed By SB % Silt 1235 E. Davis St., Arlington Heights, IL 60005

Plasticity Index 25Test By MT % Gravel

Liquid Limit 43 brown & gray Maintenance Facility Complex AdditionPlastic Limit 18 West 63rd Street, Chicago, IL

Boring No. SB-04A CLASSIFICATION-ASTM D 2487 PARTICLE SIZE ANALYSIS-ASTM D 422Sample No. 1

LEAN CLAY with SAND (CL)Depth 3.5'-5.0' Chicago Midway Airport

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ASTM D-1557 (Procedure A)Laboratory Compaction Characteristics

Using Mechanical CompactorModified Effort (Dry Preparation)

MOISTURE DENSITY CURVEChicago Midway Airport

Airport Maintenance Complex AdditionW. 63rd Street, Chicago, Illinois

TESTED BY DRAWN BYAPPROVED BYDATE ISSUEDJOB NO.

GEO SERVICES, INC.CONSULTING ENGINEERS

1235 E. DAVIS ST.ARLINGTON HEIGHTS, ILLINOIS

(847) 253-3845

SampleNo.

SB-03ADepth:

1.5'-3.0'

SoilDescription

SANDY LEANCLAY (CL)-black

Max. DryUnit Weight (lb/ft3)

117.8

OptimumMoisture11.2%

RSJERR3/15/1716120

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ASTM D-1557 (Procedure A)Laboratory Compaction Characteristics

Using Mechanical CompactorModified Effort (Dry Preparation)

MOISTURE DENSITY CURVEChicago Midway Airport

Airport Maintenance Complex AdditionW. 63rd Street, Chicago, Illinois

TESTED BY DRAWN BYAPPROVED BYDATE ISSUEDJOB NO.

GEO SERVICES, INC.CONSULTING ENGINEERS

1235 E. DAVIS ST.ARLINGTON HEIGHTS, ILLINOIS

(847) 253-3845

SampleNo.

SB-04ADepth:

3.5'-5.0'

SoilDescriptionLEAN CLAY

with SAND (CL)-brown & gray

Max. DryUnit Weight (lb/ft3)

118.6

OptimumMoisture11.6%

RSJERR3/15/1716120

CBR (California Bearing Ratio) of Laboratory-Compacted Soils-ASTM D 1883

Project Name Chicago Midway Airport Maintenance Complex Addition Test Results

Location 63rd Street, Chicago, IllinoisMax. Dry Density (PCF) 117.8 % of

Job No. 16120 Target Moisture (%) 11.2 Expansion 4.9Date 3/20/17 Method of Compaction Modified BR 0.1" 5.5Boring No SB-03A Molded Soaked BR 0.2" 7.0

Actual Dry Density (PCF) 112.8 105.2 LL 42Depth 1.5'-3.0' Actual W/C (%) 11.6 20.9 PL 21

PI 21Sample Description SANDY LEAN CLAY (CL)-black Pen. Correction 0.0

Tested by TOB/JE

(847) 253-3845

1235 East Davis Street

Arlington Heights, Illinois

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CBR (California Bearing Ratio) of Laboratory-Compacted Soils-ASTM D 1883

Project Name Chicago Midway Airport Maintenance Complex Addition Test Results

Location 63rd Street, Chicago, IllinoisMax. Dry Density (PCF) 118.6 % of

Job No. 16120 Target Moisture (%) 11.6 Expansion 7.4Date 3/20/17 Method of Compaction Modified BR 0.1" 1.5Boring No SB-04A Molded Soaked BR 0.2" 1.3

Actual Dry Density (PCF) 112.8 103.0 LL 43Depth 3.5'-5.0' Actual W/C (%) 11.8 24.7 PL 18

PI 25Sample Description LEAN CLAY with SAND (CL)-brown & gray Pen. Correction 0.0

Tested by TOB/JE

1235 East Davis Street

Arlington Heights, Illinois

(847) 253-3845

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MAYOR RAHM EMANUEL

CITY OF CHICAGO


COMMISSIONER GINGER S. EVANS

KEY PLAN

DATE:

SHEET NO.REVISION

SHEET TITLE:

PROJECT NAME:

PROJECT NO.:

DESIGNED: DRAWN: CHECKED:

M8119.15

IMPROVEMENTS

MAINTENANCE COMPLEX (AMC)

MIDWAY AIRPORT

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ISSUE:

Telephone: 312.526.5000

Chicago, IL 60606

300 West Adams St Suite 400

MARK DATE ISSUANCE

Telephone: 312.629.0240

Chicago, IL 60606

230 West Monroe St Suite 1400

Telephone: 312.829.2260

Chicago, IL 60607

940 West Adams St Suite 403

FEB 27, 2018

STATIONREFUELING

EXISTING

0 5025

W 63RD ST.

S L

AR

AMIE A

VE.

7460-01

POINTSTEMPORARY CRITICAL

POINT ELEV.LONGITUDELATITUDE NORTHING EASTING MAX ELEV.

LEGEND

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POTASSIUM ACETATE TANK CRITICAL POINT

CONSTRUCTION CRANE CRITICAL POINT

CONTRACTOR STAGING AREA CRITICAL POINT

DUMPSTER PAD AREA CRITICAL POINT

D-04

D-02

D-03

D-01

P-01 P-02P-03P-04

F-01

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PAVING CRITICAL POINT

FENCE INSTALLATION CRITICAL POINT

T-XX

C-XX

S-XX

D-XX

F-XX

P-XX

T-01 1863134.7300 1143124.6126

T-02 1863137.0275 1143194.5749

T-03 1863105.7456 1143125.5644

T-04 1863108.0432 1143195.5267

C-01 1862827.2881 1143045.349241° 46' 46.7" 87° 45' 04.1"

C-02 1862838.4590 1143387.166741° 46' 46.8"

C-03 1862675.3692 1143050.314041° 46' 45.2" 87° 45' 04.0"

C-04 1862686.5401 1143392.131541° 46' 45.3" 87° 44' 59.5"

D-01 1862811.5090 1143460.083341° 46' 46.5" 87° 44' 58.6"

D-02 1862812.7803 1143484.186941° 46' 46.5"

D-03 1862793.2500 1143462.120041° 46' 46.3" 87° 44' 58.6"

D-04 1862794.0317 1143484.788641° 46' 46.3" 87° 44' 58.3"

S-01 1862618.6254 1142866.126341° 46' 44.6" 87° 45' 06.5"

S-02 1862625.7453 1143072.142441° 46' 44.7" 87° 45' 03.7"

S-03 1862558.8495 1142868.192241° 46' 44.0" 87° 45' 06.4"

S-04 1862565.9694 1143074.208341° 46' 44.1" 87° 45' 03.7"

87° 44' 59.6"

87° 44' 58.3"

41° 46' 49.5" 87° 45' 02.1"

41° 46' 49.4" 87° 45' 03.0"

41° 46' 49.7" 87° 45' 02.1"

41° 46' 49.7" 87° 45' 03.0"

P-01 1862882.6930 1143345.419341° 46' 47.2" 87° 45' 00.1"

P-02 1862884.7317 1143407.886141° 46' 47.2" 87° 44' 59.3"

P-03 1862872.6911 1143488.915741° 46' 47.1" 87° 44' 58.2"

P-04 1862862.3724 1143489.210841° 46' 47.0" 87° 44' 58.2"

615.79

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615.79 790.79

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613.62

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F-01 41° 46' 49.4" 87° 45' 04.9" 1863099.0523 1142978.1948 614.61 639.61

F-02 41° 46' 49.8" 87° 45' 04.3" 1863146.3853 1143022.5177 613.64 638.64

F-03 41° 46' 49.9" 87° 45' 00.9" 1863154.9191 1143282.3793 612.90 637.90

EXISTING AIRPORT MAINTENANCE COMPLEX

PROPOSED AIRPORT MAINTENANCE COMPLEX

CRICKET

CRICKET

CRICKET

CRICKET

CRICKET

CRICKET

8" Ø FLUE VENT UP THRU ROOF(COMMON VENT FOR 4 UNITS)(TYP. FOR 3)

8" Ø FLUE VENT UP THRU ROOF(COMMON VENT FOR 4 UNITS)

(TYP. FOR 3)

8" Ø FLUE VENT UP THRU ROOF(COMMON VENT FOR 4 UNITS)(TYP. FOR 3)

ROOF PLAN

A103

MIDWAY INTERNATIONAL AIRPORTCITY OF CHICAGO

MIDWAY AIRPORTMAINTENANCE COMPLEX (AMC)

IMPROVEMENTS

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TYP. CURB DETAIL DETAIL SECTION: ROOF EXPANSION JOINT COPING

COPING

PARAPET AT LOWER ROOF1

A103

2

A103

4

A103

5

A103

3

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6

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TYP. CURB DETAIL7

A103