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Michael Pacholok Director Purchasing and Materials Management Division City Hall, 18 th Floor, West Tower 100 Queen Street West Toronto, Ontario M5H 2N2 Joanne Kehoe Manager Construction Services March 4, 2016 Via Internet Posting 20 pages ADDENDUM NO. 2 TENDER CALL NO. 101-2016 CONTRACT NO. 16-091-69107 FOR GENERAL SERVICES BUILDING INTERIOR OFFICE RENOVATIONS AT EXHIBITION PLACE, TORONTO CLOSING DATE: MARCH 10, 2016, 3:00 P.M. (LOCAL TIME) Please refer to the above Request for Tender (RFT) document in your possession and be advised of the information as outlined below: 1. Revision to pricing form: Delete the Appendix IV, Section VII (Blue Pages) issued as part of original tender specification and use the revised Appendix IV attached. 2. Minutes of Mandatory Site Meetings: See attached for Minutes of the Mandatory Site Meeting held on February 29, 2016, at 10:00 a.m. 3. Questions & Answers: See attached for questions & answers for this project. 4. Revised Information: See attached for revised spec. and drawings. Should you have any questions regarding this addendum, please contact Brenda Duffley at email: [email protected] or fax (416) 397-7779. Please attach this addendum to your RFT document and be governed accordingly. Tenderers must acknowledge receipt of all addenda in their Tender in the space provided in Tender Form page TF 3 - article 5 (blue pages) of the RFT document. All other aspects of the RFT remain the same. Yours truly, Joanne Kehoe Manager, Construction Services Purchasing & Materials Management

FOR GENERAL SERVICES BUILDING INTERIOR OFFICE … · 2020-05-29 · resilient flooring, (carpet, vinyl, rubber, hardwood etc. installation), shall be performed by firms subject to

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Michael Pacholok Director

Purchasing and Materials Management Division City Hall, 18th Floor, West Tower 100 Queen Street West Toronto, Ontario M5H 2N2

Joanne Kehoe Manager Construction Services

March 4, 2016 Via Internet Posting –20 pages

ADDENDUM NO. 2

TENDER CALL NO. 101-2016

CONTRACT NO. 16-091-69107

FOR GENERAL SERVICES BUILDING INTERIOR OFFICE RENOVATIONS

AT EXHIBITION PLACE, TORONTO

CLOSING DATE: MARCH 10, 2016, 3:00 P.M. (LOCAL TIME)

Please refer to the above Request for Tender (RFT) document in your possession and be advised of the

information as outlined below:

1. Revision to pricing form:

Delete the Appendix IV, Section VII (Blue Pages) issued as part of original tender specification and use the

revised Appendix IV attached.

2. Minutes of Mandatory Site Meetings:

See attached for Minutes of the Mandatory Site Meeting held on February 29, 2016, at 10:00 a.m.

3. Questions & Answers:

See attached for questions & answers for this project.

4. Revised Information:

See attached for revised spec. and drawings.

Should you have any questions regarding this addendum, please contact Brenda Duffley at email:

[email protected] or fax (416) 397-7779.

Please attach this addendum to your RFT document and be governed accordingly. Tenderers must acknowledge

receipt of all addenda in their Tender in the space provided in Tender Form page TF 3 - article 5 (blue pages) of

the RFT document. All other aspects of the RFT remain the same.

Yours truly,

Joanne Kehoe

Manager, Construction Services

Purchasing & Materials Management

Name of Tenderer FORM 1 Contract No.16-091-69107 Appendix IV Revised for Addendum #2 ADDITIONAL PRICES (not included in Construction Price) Number Description of Item Increase in estimated Contract Price

if Item(s) added to the Base Work within the same assigned *construction period

1. Replace the existing urinals in the Men's Washroom (R06) as specified in the Mechanical Addendum M-1 $

Please read Instructions to Tenderers clause no. 19. Note: There will be no change to the “General Construction Price” under Appendix II section 1A & 1B

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ADDENDUM NO. 2 AND MINUTES OF MEETING FOR SITE TOUR

THE BOARD OF GOVERNORS OF EXHIBITION PLACE CAPITAL WORKS DEPARTMENT Tender 101-2016 Contract No.: 16-091-69107 Addendum No. 2 Tender For: General Services Building, Interior Office Renovations The meeting was held in the General Services Building, Second Floor Training Room, 2 Strachan Avenue and continued at the project areas. Attendees: Danny Chui, Exhibition Place Sustain Globe Ltd. James Bailey Architect Contractors:

Martinway Contracting Ltd. Torcom Construction Inc. Massive Devcon Corporation Joe Pace & Sons Contracting Inc. Brown Daniels Associates MJ Dixon Construction Ross Clair Contracting R-Chad General Contracting Saundercook Productions Rokan Enterprises Inc. Execway Construction Fresco Construction Index Construction Canada Construction Ltd. Cosar GC.PM Anacond Contracting ONIT Construction Beta Associate Tri-Green Construction Inc. Enercare Inc. Morosons Construction Ltd. Con-Spec Construction Inc. Koler Construction MN Dynamic Construction Argiloff Engineering MJK Construction

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Page 2 Minutes of Site Tour/Addendum #2 1. Mr. Danny Chui, Capital Works Manager, opened the Meeting by underlining the following items

from the tender document:

1.1 Contractors are to note that their submissions are to be accompanied by a Bid Bond. The contractors must use all forms enclosed (other insurance company forms will not be accepted). Not complying will be reason to eliminate the Tender as incomplete.

1.2 The SCHEDULE OF PRICES section should be completed with the break down costs as requested. Not completing in full the SCHEDULE OF PRICES will be reason to eliminate the Tender as incomplete.

1.3 The attention of the bidders was drawn to items 1.5, 1.6, 1.7 and 1.8 of the Instructions to

tenderers (green pages), as well as to the new item 56 - Contractor Performance Evaluation.

1.4 The contractors were reminded that all questions should go to Brenda Duffley at the City of Toronto Purchasing Division (contact information is provided in the Tender Document).

1.5 The Construction Schedule was reviewed and it is noted under item 18.5 of the Instructions to Bidders (green pages).

1.6 The attention of the Contractor was drawn to item 5. TF-3 related to the number of addenda received. Failing to account for all addenda issued may result in extra costs borne by the Contractor for items not accounted for.

2. The Consultants briefly described the Scope of Work for the project. 3. The Contractors visited the areas subject to the scope of work on the main floor, the second

floor and the basement. 4. In response to a question regarding site parking and location for a disposal bin during construction, it was clarified that the north end of the site (around the north/east corner of the building) will be made available for both purposes. 5. The Consultants advised that a new utility sink is being added in the Men's Washroom (R06) - see attached M/E addenda & sketches. Also, a new fire rated ceiling is being specified for the same washroom - see sketches and specification. Demolition of the existing 1'x1' acoustic ceiling will be by Owner. 6. In response to a question regarding the need for x-ray/scanning of the concrete slabs prior to coring for new mechanical services, it was clarified that the cost for scans will be covered under the contract's contingency allowance. 7. As a clarification about the specified spray fireproofing of the supporting steel structure within the new office areas, the steel columns are to be fire-protected on both sides (room side and corridor side). In addition, the floor supporting steel beams and columns in the basement (north half, under the project area) are to be spray-fireproofed as well: 5 columns at 10' height, 40 beams @ 10' length and 5 beams @ 16' length.

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Page 3 Minutes of Site Tour/Addendum #2 8. It was clarified that the existing washroom (shower & sink) within the new Office #2 (R07) is to remain. 9. It was pointed out that Siemens is Exhibition Place's fire alarm company and Classic Fire handles

the sprinklers. The Bidders must use Classic Fire in this contract to maintain warranty of our in-house agreement with Classic. Any work related to testing, verification of or tying into the existing fire alarm system has to be coordinated with Siemens.

10. Full repainting of the existing wood stair leading to the equipment room (R10) is to be added to the scope. Add the following item 3.3.7 to Section 09900 Painting;

Interior Wood paint finish: 1st Coat Interior Enamel Undercoat 1.38-M91 2nd Coat Interior Latex semi gloss 1.209-93 3rd Coat Repeat 2nd Coat

11. Replace Appendix IV of Form 1 from the tender document with the attached revised one.

Please acknowledge receiving this Addendum in your Tender Document.

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Tender Call No. 101-2016

Addendum No. 2

Questions & Answers:

Q1. Will new window coverings-blinds be required? I have reviewed the attached don't see any details

regarding window treatments.

A1. There is no provision for window coverings in the scope.

Q2. Is the flooring work non-unionized & needs to meet fair wage?

A2. The flooring is unionized work, under Local 27 carpenters.

Exhibition Place is bound to the current province-wide collective agreement covering the Industrial,

Commercial and Institutional (I.C.I.) sector of the construction industry between the Carpenters'

Employer Bargaining Agency and the Ontario Provincial Council, United Brotherhood of Carpenters

and Joiners of America.

The work at Exhibition Place that falls within the jurisdiction of the Carpenters, which includes

resilient flooring, (carpet, vinyl, rubber, hardwood etc. installation), shall be performed by firms

subject to the Carpenters/Resilient Flooring collective agreement. For hard surfaces, such as ceramic,

slate, stone, granite etc., installation is subject to the City of Toronto I.C.I fair wage schedule.

There is resilient vinyl sheet flooring with rubber base everywhere (including the washrooms) except

for the two private offices, where there is carpet with rubber base.

Q3. I wanted to confirm whether the subcontractor for asbestos abatement is required to be unionized.

A3. There is no asbestos abatement required for this work.

Q4. It stipulates that electrical work is required and we couldn't find requirements for mechanical or

structural in the booklet.

A4. There is no structural work required for the scope of the project. The mechanical and electrical

specifications are on the M/E drawings (drawings M3 and E3).

Q5. Please advise the contact information for EnerCare.

A5. Its contact is Ryan Gregorack, [email protected]<mailto:[email protected]>.

You may choose to seek price from Enercare or you can seek price from your preferred sub. Refer to

Clause 40 – “Notice of Special Bidding Process (Mechanical & Electrical Only)” of the Instructions

to Tenderers for clarification.

Q6. Also, please advise if we are required to use this trade for the mechanical and electrical portion of this

tender.

Q7. Will there be any file storage requirements?

A7. No.

Q8. Will there be any other storage requirements?

A8. No.

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SustainGlobeLtd. Consulting Engineers

275 Renfrew Drive, Suite 201, Markham, Ontario L3R 0C8, Tel: 905-477-2869

March 1, 2016 VIA FAX: e-mail To: James Bailey Architect 49 Melbourne Avenue

Toronto, Ontario M6K 1K6

Attention: James Bailey Re: Proposed Renovation, General Services Building, CNE, Toronto Mechanical Addendum No. M-1 Our Project No.: 15078 Please issue a Mechanical addendum to the mechanical contractor as follows: The changes are outlined in this addendum includes but is not limited to extend of changes. Refer to tender documents and all revisions issued thereafter and herewith for total extent of changes.

1.0 Reference to drawing M-2 issued for tender, February 19, 2016, and attached sketches SKM-2-2A and SKM-2-2B issued herewith.

1.1 Existing shower and lavatory in room adjacent to Men’s Washroom R06 and Women’s Washroom R08 to remain. Refer to sketch SKM-2-2A for details.

1.2 Replace four existing urinals with new (type ‘U’) in Men’s Washroom R06. Provide additional cost (including labour and materials) for the installation of urinals. Refer to sketch SKM-2-2A for details. The specification of the urinal is listed below.

Toto model UT447EV, compact urinal with concealed integral trap, washout flush action 3/4" back spud inlet, 0.5GPF. Flush valve Toto model TEU1LN#CP automatic infrared sensor activated, toilet valve.  Low water consumption of 1.28 gallons per flush.  Piston valve with stainless steel self‐cleaning debris screen and self‐cleaning solenoid. Automatic flush every twenty four hours if not used.  Manual override button incorporated. Back spud wall c/w vacuum breaker & angle stop set (VB13RB‐31) including 1" angle stop (10077T5), 1‐1/2" vacuum breaker, outlet tube (TH559EDV176) and sweat solder kit (SJ3).  Watts #CA‐321, urinal carrier, mounted on concrete floor, universal steel hangar support plate and bottom bearing plate with integral mounting brackets, heavy gauge epoxy coated steel offset uprights with welded feet. Minimum space 

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Page 2 Proposed Renovation, General Services Building, CNE, Toronto Mechanical Addendum No. M-1

required: for one unit: 102mm (4") for two to six units in a row: 152mm (6") finished metal stud wall to back of pipe space. Watts #CO‐440‐RD urinal wall access cleanout, two piece expandable plug with 102mm (4") diameter stainless steel access cover and secured with vandal proof stainless steel screw.  

 1.3 Revised arrangement for sanitary drain pipes in Women’s Washroom

R08. Refer to sketch SKM-2-2A for details. 1.4 New janitor sink ‘JS’ added in Men’s Washroom R06. Extend new

sanitary pipe, cold water pipe and hot water pipe to janitor sink. Refer to sketch SKM-2-2A for details. Provide necessary wall support for service sink and faucets on existing block wall. The specification of janitor sink ‘JS’ is listed below.

PLASTER SINK ‐ TWO (2) HANDLE FAUCET  American Standard #9061.193/7716.020.002‐485742‐600 Plaster Sink, 8" (203 mm) centerset, 762 mm (30") wide x 559 mm (22") x 393 mm (15‐1/2") high deep, wall hung, faucet on backsplash, vitreous china, two support brackets, #7716.020.002 1‐1/2"(38 mm) chrome plated cast brass open grid strainer.  Chicago Faucets #897‐XK‐CP Wall Mounted two (2) Handle Faucet, chrome plated, 8" (203 mm) centerset, solid brass exposed body, 1/4 turn ceramic disc valve cartridges, unrestricted hose end outlet, 203 mm (8") projection spout with atmospheric vacuum breaker and bucket hook, 60 mm (2‐3/8") metal vandal proof lever handles with blue and red index buttons. McGuire #8912CB P‐Trap, heavy cast brass adjustable body, with slip nut, 38 mm (1‐1/2") size, box flange and seamless tubular wall bend. 

1.5 Extend four existing sprinkler pipes and provide new sprinkler heads to

new drop ceiling in Men’s Washroom R06. 1.6 Supply and install fire dampers at the return air grilles openings in new

fire-rated drop ceiling in Men’s Washroom R06. Refer to sketch SKM-2-2B for details.

1.7 This contractor is responsible for all cutting and patching of wall and

ceiling. Patch all openings to the satisfaction of architect. Provide and install access panels at locations of equipment for maintenance and control purposes. Access panels shall match wall or ceiling fire rating.

End of Addendum Yours truly, Tak Lau, P.Eng. SustainGlobe Ltd. TL/tl Encl.

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SustainGlobeLtd. Consulting Engineers

275 Renfrew Drive, Suite 201, Markham, Ontario L3R 0C8, Tel: 905-477-2869

March 1, 2016 VIA FAX: e-mail To: James Bailey Architect 49 Melbourne Avenue Toronto, Ontario

M6K 1K6 Attention: James Bailey Re: General Services Building Interior Office Renovations Exhibition Place, Toronto M6K 3C3 Electrical Addendum No. E-1 Our Project No.: 15078 Please issue an Electrical addendum to the Electrical contractor as follows: The changes are outlined in this addendum includes but is not limited to extend of changes. Refer to tender documents and all revisions issued thereafter and herewith for total extent of changes.

1.0 Reference to drawing E-2 issued for permit/tender dated February 19, 2016 and sketch SKE-2-2A issued herewith.

1.1 Relocate existing lighting in Men’s Washroom R06 on ground floor. Refer to sketch for detail.

1.2 Provide and install two surface mounted lighting fixtures ‘B1’ in Men’s Washroom R06. Two lighting fixtures shall be similar to type ‘B’ fixture or match existing fixtures in Washroom.

2.0 Reference to drawing E-2 issued for permit/tender dated February 19, 2016 and sketch SKE-2-2B issued herewith. Provide additional price for this item.

2.1 Provide power for flush valves in men’s washroom on ground floor. Refer to sketch for detail.

3.0 Clarification for length of # 8 AWG cable connected between distribution panel ‘DP-1’ in basement electrical room to new panel ‘LP-H’ serving the new office on ground floor. The length to be approximately 250 feet.

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Page 2 General Services Building Interior Office Renovations Exhibition Place, Toronto M6K 3C3 Electrical Addendum No. E-1

End of Addendum Yours truly, Edward Cheung, A.Sc.T. SustainGlobe Ltd. EC/ec Encl.

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Interior Office Renovations Section 09500

General Services Building, Exhibition Place Acoustical Ceilings

JBA Project #1513, Exhibition Place Project #16-091-69107 Page 1

PART 1 GENERAL

1.1 RELATED DOCUMENTS

Drawings and general conditions of Contract, including General and Supplementary Conditions and Divisions-1 Specification sections apply to work of this section. 1.2 SUMMARY

1. Section Includes: 1. Acoustical ceiling panels 2. Exposed grid suspension system 3. Wire hangers, fasteners, main runners, cross tees, and wall angle moldings 4. Perimeter Trim 2. Related Selections 1. Division 15 - Mechanical 2. Division 16 - Electrical 3. Alternates 1. Prior Approval: Unless otherwise provided for in the Contract documents, proposed product substitutions may be submitted no later than TEN (10) working days prior to the date established for receipt of bids. Acceptability of a proposed substitution is contingent upon the Architect's review of the proposal for acceptability and approved products will be set forth by the Addenda. If included in a Bid are substitute products that have not been approved by Addenda, the specified products shall be provided without additional compensation. 2. Submittals that do not provide adequate data for the product evaluation will not be considered. The proposed substitution must meet all requirements of this section, including but not necessarily limited to, the following: Single source materials suppliers (if specified in Section 1.5); Underwriters' Laboratories Classified Acoustical performance; Panel design, size, composition, color, and finish; Suspension system component profiles and sizes; Compliance with the referenced standards. 1.3 REFERENCES

1. American Society for Testing and Materials (ASTM): 1. ASTM A 1008 Standard Specification for Steel, Sheet, Cold Rolled, Carbon, Structural, High-Strength Low-Alloy and High-Strength Low-Alloy with Improved Formability

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Interior Office Renovations Section 09500

General Services Building, Exhibition Place Acoustical Ceilings

JBA Project #1513, Exhibition Place Project #16-091-69107 Page 2

2. ASTM A 641 Standard Specification for Zinc-Coated (Galvanized) Carbon Steel Wire 3. ASTM A 653 Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) by the Hot-Dip Process 4. ASTM C 423 Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method 5. ASTM C 635 Standard Specification for Metal Suspension Systems for Acoustical Tile and Lay-in Panel Ceilings 6. ASTM C 636 Recommended Practice for Installation of Metal Ceiling Suspension Systems for Acoustical Tile and Lay-in Panels 7. ASTM E 84 Standard Test Method for Surface Burning Characteristics of Building Materials 8. ASTM E 119 Standard Test Methods for Fire Tests of Building Construction and Material 9. ASTM E 1111 Standard Test Method for Measuring the Interzone Attenuation of Ceilings Systems 10. ASTM E 1264 Classification for Acoustical Ceiling Products

1.4 SYSTEM DESCRIPTION

Continuous/Wall-to-Wall 1.5 SUBMITTALS

1. Product Data: Submit manufacturer's technical data for each type of acoustical ceiling unit and suspension system required. 2. Samples: Minimum 6 inch x 6 inch samples of specified acoustical panel; 8 inch long samples of exposed wall molding and suspension system, including main runner and 4 foot cross tees. 3. Shop Drawings: Layout and details of acoustical ceilings show locations of items that are to be coordinated with, or supported by the ceilings. 4. Certifications: Manufacturer's certifications that products comply with specified requirements, including laboratory reports showing compliance with specified tests and standards. For acoustical performance, each carton of material must carry an approved independent laboratory classification of NRC, CAC, and AC. 5. If the material supplied by the acoustical subcontractor does not have an Underwriter's Laboratory classification of acoustical performance on every carton, subcontractor shall be required to send material from every production

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Interior Office Renovations Section 09500

General Services Building, Exhibition Place Acoustical Ceilings

JBA Project #1513, Exhibition Place Project #16-091-69107 Page 3

run appearing on the job to an independent or NVLAP approved laboratory for testing, at the architect's or owner's discretion. All products not conforming to manufacturer's current published values must be removed, disposed of and replaced with complying product at the expense of the Contractor performing the work. 1.6 QUALITY ASSURANCE

1. Single-Source Responsibility: Provide acoustical panel units and grid components by a single manufacturer. 1. Fire Performance Characteristics: Identify acoustical ceiling components with appropriate markings of applicable testing and inspecting organization. 2. Surface Burning Characteristics: As follows, tested per ASTM E 84 and complying with ASTM E 1264 Classification. 3. Fire Resistance: As follows tested per ASTM E119 and listed in the appropriate floor or roof design in the Underwriters Laboratories Fire Resistance Directory 2. Acoustical Panels: As with other architectural features located at the ceiling, may obstruct or skew the planned fire sprinkler water distribution pattern through possibly delay or accelerate the activation of the sprinkler or fire detection systems by channeling heat from a fire either toward or away from the device. Designers and installers are advised to consult a fire protection engineer, NFPA 13, or their local codes for guidance where automatic fire detection and suppression systems are present. 3. Coordination of Work: Coordinate acoustical ceiling work with installers of related work including, but not limited to building insulation, gypsum board, light fixtures, mechanical systems, electrical systems, and sprinklers. 1.7 DELIVERY, STORAGE AND HANDLING

1. Deliver acoustical ceiling units to project site in original, unopened packages and store them in a fully enclosed space where they will be protected against damage from moisture, direct sunlight, surface contamination, and other causes. 2. Before installing acoustical ceiling units, permit them to reach room temperature and a stabilized moisture content. 3. Handle acoustical ceiling units carefully to avoid chipping edges or damaged units in any way. 1.10 WARRANTY

1. Acoustical Panel: Submit a written warranty executed by the manufacturer, agreeing to repair or replace panels that fail within the warranty period. Failures include, but are not limited to the following: 1. Acoustical Panels: Sagging and warping

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Interior Office Renovations Section 09500

General Services Building, Exhibition Place Acoustical Ceilings

JBA Project #1513, Exhibition Place Project #16-091-69107 Page 4

2. Grid System: Rusting and manufacturer's defects 2. Warranty Period: 1. Acoustical panels: Ten (10) years from date of substantial completion. 2. Grid: Ten (10) years from date of substantial completion. 3. Acoustical panels and grid systems with HumiGuard Plus or HumiGuard Max performance supplied by one source manufacturer is Thirty (30) years from date of substantial completion. 3. The Warranty shall not deprive the Owner of other rights the Owner may have under other provisions of the Contract Documents and will be in addition to and run concurrent with other warranties made by the Contractor under the requirements of the Contract Documents. 1.11 MAINTENANCE

1. Extra Materials: Deliver extra materials to Owner. Furnish extra materials described below that match products installed. Packaged with protective covering for storage and identified with appropriate labels. 1. Acoustical Ceiling Units: Furnish quality of full-size units equal to 5.0 percent of amount installed. 2. Exposed Suspension System Components: Furnish quantity of each exposed suspension component equal to 2.0 percent of amount installed. PART 2 PRODUCTS

2.1 MANUFACTURERS

1. Ceiling Panels: 1. Armstrong World Industries, Inc. 2. Suspension Systems: 1. Armstrong World Industries, Inc. 3. Perimeter Systems 1. Armstrong World Industries, Inc. 2.2 ACOUSTICAL CEILING UNITS

1. Acoustical Panels Type AP 1. Surface Texture: Medium 2. Composition: Mineral Fiber

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General Services Building, Exhibition Place Acoustical Ceilings

JBA Project #1513, Exhibition Place Project #16-091-69107 Page 5

3. Color: White 4. Size: 24IN x 48IN 5. Edge Profile: Square Lay-In 15/16IN for interface with Prelude XL Fire Guard 15/16" Exposed Tee grid. 6. Noise Reduction Coefficient(NRC): ASTM C 423; Classified with UL label on product carton 0.55. 7. Ceiling Attenuation Class (CAC) : ASTM C 1414; Classified with UL label on product carton 35. 8. Sabin: N/A 9. Articulation Class (AC): 10. Flame Spread: ASTM E 1264; Fire Resistive 11. Light Reflectance White Panel: ASTM E 1477; 0.85 12. Dimensional Stability: HumiGuard Plus 13. Recycle Content: Post-Consumer - 0% - 1% Pre-Consumer Waste - 33% - 54% 14. Acceptable Product: Fine Fissured, 1830 as manufactured by Armstrong World Industries 2.3 METAL SUSPENSION SYSTEMS

1. Components: Main beams and cross tees, base metal and end detail, fabricated from commercial quality hot dipped galvanized steel complying with ASTM A 653. Main beams and cross tees are double-web steel construction with exposed flange design. Exposed surfaces chemically cleansed, capping prefinished galvanized steel in baked polyester paint. Main beams and cross tees shall have rotary stitching. 1. Structural Classification: ASTM C 635 Intermediate Duty 2. Color: White and match the actual color of the selected ceiling tile, unless noted otherwise. 3. Acceptable Product: Prelude XL Fire Guard 15/16" Exposed Tee as manufactured by Armstrong World Industries 2. Attachment Devices: Size for five times design load indicated in ASTM C 635, Table 1, Direct Hung unless otherwise indicated. 3. Wire for Hangers and Ties: ASTM A 641, Class 1 zinc coating, soft annealed, with a yield stress load of at least time three design load, but not less than 12 gauge. PART 3 EXECUTION

3.1 EXAMINATION

1. Do not proceed with installation until all wet work such as concrete, terrazzo, plastering and painting has been completed and thoroughly dried out, unless expressly permitted by manufacturer's printed recommendations. 3.2 PREPARATION

1. Measure each ceiling area and establish layout of acoustical units to balance border widths at opposite edges of each ceiling. Avoid use of less than half width units at

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Interior Office Renovations Section 09500

General Services Building, Exhibition Place Acoustical Ceilings

JBA Project #1513, Exhibition Place Project #16-091-69107 Page 6

borders, and comply with reflected ceiling plans. Coordinate panel layout with mechanical and electrical fixtures. 3.3 INSTALLATION

1. Follow manufacturer installation instructions. 2. Install suspension system and panels in accordance with the manufacturer's instructions, and in compliance with ASTM C 636 and with the authorities having jurisdiction. 3. Suspend main beam from overhead construction with hanger wires spaced 4-0 on center along the length of the main runner. Install hanger wires plumb and straight. 4. Install wall moldings at intersection of suspended ceiling and vertical surfaces. Miter corners where wall moldings intersect or install corner caps. 5. For reveal edge panels: Cut and reveal or rabbet edges of ceiling panels at border areas and vertical surfaces. 6. Install acoustical panels in coordination with suspended system, with edges resting on flanges of main runner and cross tees. Cut and fit panels neatly against abutting surfaces. Support edges by wall moldings. 3.4 ADJUSTING AND CLEANING

1. Replace damaged and broken panels. 2. Clean exposed surfaces of acoustical ceilings, including trim, edge moldings, and suspension members. Comply with manufacturer's instructions for cleaning and touch up of minor finish damage. Remove any ceiling products that cannot be successfully cleaned and or repaired. Replace with attic stock or new product to eliminate evidence of damage.

END OF SECTION 09500

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