BIDDING AND CONTRACT DOCUMENTS DOCUMENT 00201

DATE: MARCH 13, 2008 WALTON & ASSOCIATES ARCHITECTS, P.C. 1227 South Sixth Street Springfield, IL 62703 PH: (217) 544-5888 TO: PROSPECTIVE BIDDERS SUBJECT: ADDENDUM NO. 1 TO THE BIDDING DOCUMENTS FOR Phase IIA Remodeling Project Number U06030

Material, Science and Engineering Building University of Illinois Urbana-Champaign Champaign, Illinois This Addendum forms a part of the bidding and contract documents and modifies the original bidding documents, dated February 22, 2008. Acknowledge receipt of this Addendum in space provided on Bid Form. FAILURE TO DO SO MAY SUBJECT BIDDER TO DISQUALIFICATION. **************************************************************************************************** GENERAL COMMENTS: 1. For clarification, the floor in the lab area (Lab 1302 and Laser Lab 1302A) is slab-

on-grade. The cutting and patching is the responsibility of the respective contractor at the expense of the respective contractor. Reference section 15010, A, 3 for cutting and patching requirements.

PROJECT MANUAL: 1. RE: SECTION 04460 – LIMESTONE

A. Paragraph 1.02 – Related Work Add the following: “3. 07620 Flashing and Sheet Metal”

2. RE: SECTION 07620 – FLASHING AND SHEET METAL A. Replace this section in its entirety with new Section 07620 attached to this

addendum. 3. RE: SECTION 08210 – WOOD DOORS

A. Paragraph 2.02 – Wood Veneer Doors Revise subparagraph 2.02B to read as follows: “Construction: Stave core”

4. RE: SECTION 08800 – GLASS AND GLAZING

A. Paragraph 2.01C – Fire Rated Glass Products Delete paragraph 2.01C.

B. Paragraph 3.04A – Fire Rated Glazing

Delete paragraph 3.04A. 5. RE: SECTION 15260 – MECHANICAL PIPE INSULATION

A. Paragraph 3.03 – Pipe Insulation Schedule Piping insulation schedule shall be revised to read, “Chilled Water, Cooling Coil Condensation Drain & All Runouts, - Exposed Piping in public walkways and corridors. All other such piping shall be insulated as scheduled above.”

6. RE: SECTION 15488 – NATURAL GAS PIPING

A. Paragraph 3.02A - Joints Delete second sentence in its entirety. Replace with the following: “Joints may be screwed for piping less than 2” in size. For 2-inch and larger pipe, the joints shall be welded.”

7. RE: SECTION 15495 – ACID WASTE PIPING (POLYPROPYLENE)

A. Paragraph 3.02A –Pipe Supports Sixth sentence in paragraph, which reads, “In addition, horizontal pipe runs shall be placed on a continuous, 18 gauge galvanized sheet metal trough with soldered joint, capable of supporting pipe and containing leakage”, shall be deleted in its entirety.

8. RE: SECTION 15950 – TEMPERATURE CONTROLS

A. Paragraph 2.19 – Airflow Measuring Stations Delete line item “C” referring to bleed sensors.

9. RE: SECTION 15985 – SEQUENCE OF OPERATIONS

A. Paragraph 3.01E – Outside Air Setpoint “Outside Air Setpoint” shall be revised to read:

“1. The outside air minimum setpoint shall be calculated by the building automation system. The minimum setpoint shall be as scheduled (1800-CFM, adj.). The outside air volume shall be measured by an airflow

monitoring station in the ductwork, as shown on the drawings. The outside air damper shall modulate to satisfy the outside air setpoint CFM.

2. The economizer system shall be capable of overriding the minimum outside air CFM setpoint.”

DRAWINGS 1. RE: SHEET C2 – SITE PLAN

A. Site Plan – New Work For clarification, the area between the end of the ramp and the top of the stairs to the basement is concrete. The area is 5’-0” x 10’-4”. The remaining surface is asphalt to match the existing parking lot.

2. RE: SHEET A1 - FIRST FLOOR PLAN

A. Demolition note 5 Delete general note 5. Replace with: “Each contractor is responsible for removal and disposal of their demolition debris.”

B. Key note 7

The following are the cast-in-place truncated dome system manufacturer or approved equal.

1. Armor-Tile

Detectable/Tactile warning surface tile 24”x48” cast-in-place model number ADA-C-2448 Color: Colonial Red

2. Advantage Tactile Systems Tactile Tile Detectable warning system 24”x48” cast-in-place model number ATS-C-2x4 Color: Red

3. ADA Solutions, Inc. Detectable warning system 24”x48” cast-in-place part number 2448IDPAV1 Color: Brick Red

3. RE: SHEET A2 – BASEMENT PLAN AND SCHEDULES

A. Door and Frame Schedule Door C1300B-1 finish shall be stain and varnish in lieu of paint.

4. SHEET A4 - EXTERIOR ELEVATIONS A. Window Type B

The louver detail are attached to the addendum. See detail ADD 1.3. 5. RE: SHEET A5 - REFLECTED CEILING, ROOF PLAN AND DETAILS

A. Plan 2/A5 - Partial Roof Plan Relocate the gooseneck exhaust vent and roof vent. See detail AD1.0 for new location.

B. Detail 8/A5 -Roof Curb Detail

Delete reference to saw cut reglet into masonry. The note should read as follows: “New 2-piece metal reglet and counterflashing.”

6. RE: SHEET S2 – STRUCTURAL FRAMING PLAN

A. Plan 1/S2 – Structural Framing Plan At the W10x22 beam for the accordion door, the beam shall be connected to the masonry wall at each end of the beam with two angles 4”x4”x1/4” with 2 – ¾” diameter A325 bolts in the beam and 4 (2 in each angle) – 5/8” diameter Hilti HIT HY 20 bolts epoxy grouted into the masonry wall (6” min. embedment into masonry).

7. RE: SHEET P-1 – BASEMENT PLAN - PLUMBING

A. Plan A/P1 – Basement Plan - Plumbing Add 4” areaway drain in exterior stair as indicated on the attached drawing ADD P-1.

8. SHEET P-2 – FIRST FLOOR - PLUMBING

A. Plan A/P2 – First Floor Plan - Plumbing Add cold water hosebibb, mounted 24” above finished floor, in Mechanical Room 1310. Provide ¾” supply piping, with ball valve, connected to cold water piping currently indicated along the east wall.

9. RE: SHEET H-5 – HEATING DETAILS

A. Detail A/H5 – Air Handling Unit AHU 1. Remove bleed sensor from control schematic. Add point 39 – “RA Damper”

and change point 1 to “OA Damper”. EA, OA and RA Damper shall be controlled via separate control signals.

2. Filter Status shall be point 3 on control drawings.

B. Detail C/H5 – VAV Terminal Unit with Reheat

Add Discharge Temperature Sensor downstream of VAV box reheat coil.

10. RE: SHEET V-1 – FIRST FLOOR PLAN – VENTILATION – NEW WORK A. Plan A/V1 – First Floor Plan – Ventilation – New Work

Revise diffuser CFMs per attached sketches ADD V1-1 and ADD V1-2.

11. RE: SHEET V-2 – MEZZANINE FLOOR PLAN – VENTILATION – NEW WORK A. Plan A/V2 – Mezzanine Floor Plan – Ventilation – New Work

Revise diffuser CFMs per attached sketch ADD V2.

12. RE: SHEET V-4 – VENTILATING DETAILS A. Detail C/V4

For clarification, counter flashing shall be 2-piece. Reference to existing roof deck and membrane shall be deleted.

13. RE: SHEET V-6 – VENTILATING SCHEDULES

A. Fan Schedule Return fan shall be selected for 2,150-CFM, per attached sketch ADD V6.

14. RE: SHEET V7 – VENTILATING SCHEDULES

A. VAV box schedule Revised per attached sketch. Lab Air Valve schedule shall be revised per attached sketch ADD V7.

15. RE: SHEET E-7 – BASEMENT PLAN – NEW WORK

A. Plan A/E7 – Basement Plan – New Work Panel feeder route shown to Panel 1.16 is a New Feeder, in lieu of Low Feeder noted.

16. RE: SHEET E-8 – FIRST FLOOR PLAN – NEW WORK

A. Plan A/E8 – First Floor Plan – Electrical New Work – Special Systems IT conduit above Classroom #119 shall be installed concealed above high ceiling in room. Provide 90's at IT room and drop down below ceiling of room, and stub off conduits inside room. Provide 90's at North end of Classroom #119 and provide second pullbox in Classroom #119 at level required to penetrate North wall below new roof line. Coordinate height with G.C.

17. RE: SHEET E-10 – SYMBOLS LIST

A. Light Fixture Schedule "F7" shall be an exterior wall-mount HID fixture, Lithonia #WST-100M-MD-MVOLT-SF-DDBT or equal by Metalux, 100W M.H., Medium-throw, fused, dark bronze finish.

18. RE: SHEET E-12 – DETAILS

A. Detail B/E12 – Typical Wiring Diagram 1. Provide shunt-trip main breaker in Panel 1.14, in lieu of contactor noted.

2. Breaker shall be 3P-400A, in lieu of 100A noted on contactor.

3. Power wiring shall be in accordance with one-line diagram, in lieu of #3

noted on detail.

4. Detail applies to Panel 1.14 only. Panel 1.16 is not similar.

5. Pushbutton enclosure shall be at entrance to laboratory, as shown on floor plans. All other relays and equipment associated with this trip system shall be installed in a pullbox (furnished with hinged door, mounting panel, and labels) installed above the lay-in ceiling.

WALTON AND ASSOCIATES ARCHITECTS, P.C. 1227 South Sixth Street

Springfield, IL 62703 Ph: (217) 544-5888 Fax: (217) 544-1851

Web Site: www.thewaltongroup.com

This Addendum consists of 6 pages, specification section 07620, and Sketches

AD1.0, AD1.1, AD1.2, AD1.3, ADD P-1, ADD V1-1, ADD V1-2, ADD V2, ADD V6, and ADD V7

Walton & Associates Architects, P.C. #2603 07620-1

DIVISION 7 - THERMAL & MOISTURE PROTECTION Section 07620 - Flashing and Sheet Metal 1. GENERAL 1.01 WORK INCLUDES

A. Base Bid: 1. General Contractor provide:

a. Exposed and concealed copings, downspouts, gutters, scuppers, trim, and similar sheet metal items when not specifically included with any other sections.

b. Prefabricated metal reglets, counterflashings c. Stainless steel flashings in conjunction with Masonry and Limestone systems.

2. Sheet metal flashing and counterflashing in conjunction with new roofing systems. 3. Related sealing required during erection. 4. Anchors, attachments, cleats and accessories for flashing and sheet metal items

1.02 RELATED WORK

A. Specified Elsewhere: 1. 04200 – Unit Masonry 2. 06100 - Rough Carpentry 3. 07530 - Single Ply Roofing System 4. 04460 - Limestone

1.03 REFERENCES

A. ASTM A167 - Stainless and Heat-Resisting Chromium-Nickel Steel Plate

B. ASTM D226 - Asphalt-Saturated Organic Felt Used in Roofing and Waterproofing

C. SMACNA - Architectural Sheet Metal Manual 1.04 SUBMITTALS

A. Product Data: Submit manufacturer's product, installation instructions and general recommendations for each specified sheet metal material and fabricated product.

B. Shop Drawings: Submit shop drawings showing layout, joining, profiles, and anchorages of major fabricated

work, including data not shown in product data submittal.

C. Samples: 1. Following selection of color, whether standard or custom, submit samples as required to show full

range of color and sheen variation expected in final installation. 1.05 QUALITY ASSURANCE

A. Standards: 1. Perimeter sheet metal work shall comply with Factory Mutual Bulletin I-49. 2. Sheet metal work shall comply with SMACNA "Architectural Sheet Metal Manual" for fabrication

and installation.

Walton & Associates Architects, P.C. #2603 07620-2

1.06 DELIVERY, STORAGE AND HANDLING

A. Deliver, store and handle materials in accordance with manufacturer's instructions. Handle and temporarily support materials in manner that will prevent twisting, bending or abrasion.

B. Prevent contact with materials during storage which may cause discoloration or staining. Stack preformed

and prefinished material to prevent twisting, bending or abrasion and to aid ventilation. Slope to drain to prevent standing water.

C. Handle prefinished materials in manner to prevent damage to finish.

1.07 JOB CONDITIONS

A. Coordinate work of this Section with interfacing and adjoining work for proper sequencing of each installation.

B. Ensure best possible weather resistance and durability of the work and protection of materials and finishes.

1.08 WARRANTY

A. Provide warranty for performance of flashing and sheet metal work and as part of roofing systems.

B. Finish Warranty: Furnish panel manufacturer's written warranty covering failure of factory-applied exterior finish on metal wall panels within the warranty period. This warranty shall be in addition to and not a limitation of other rights Owner may have against Contractor under Contract Documents. 1. Warranty period for factory-applied exterior finish on wall panels is 20 years after date of Substantial

Completion. 2. PRODUCTS 2.01 SHEET METAL MATERIALS

A. Commercial Quality 304 Stainless Steel

B. Minimum gauge of each piece of sheet metal shall comply with minimum gauge requirements of SMACNA, or minimum gauges as indicated in the Contract Documents, whichever is for thicker material.

2.02 MISCELLANEOUS MATERIALS AND ACCESSORIES

A. Solder: 50-50 tin/lead solder, ASTM B321, with rosin flux.

B. Fasteners: Same metal as flashing/sheet metal, stainless steel, or other non-corrosive metal as recommended by sheet material manufacturer.

C. Bituminous Coating: SSPC - Paint 12, solvent type bituminous mastic, nominally free of sulfur, compounded

for 15 mil dry film thickness per coat.

D. Mastic Sealant: Polyisobutylene; non-hardening, non-skinning, non-drying, non-migrating sealant. E. Elastomeric Sealant: Generic type recommended by manufacturer of metal being sealed; comply with FS TT-

S-0027 or TT-S-001543.

Walton & Associates Architects, P.C. #2603 07620-3

F. Paper Slip Sheet: 5 lb. rosin-sized building paper.

G. Underlayment: ASTM D266, No. 15 asphalt saturated roofing felt.

H. Metal Accessories: Provide sheet metal clips, cleats, straps, anchoring devices and similar accessory units as

required for installation of work, matching or compatible with material being installed, non-corrosive, size and gauge required for performance.

2.03 FABRICATION

A. Shop fabricate work to greatest extent possible. Comply with details shown, and with applicable requirements of SMACNA. Fabricate for waterproof and weather-resistant performance; with expansion provisions for running work, sufficient to permanently prevent leakage, damage or deterioration of the work. Comply with material manufacturer instructions and recommendations.

B. Form exposed sheet metal work without excessive oil-canning, buckling and tool marks, true to line and levels as indicated, with exposed edges folded back to form hems. Form sections true to shape, accurate in size, square and free from distortion or defects.

C. Seams: Fabricate non-moving seams in sheet metal with flat-lock seams. Tin edges to be seamed, form

seams and solder.

D. Sealant Joints: Where moveable type joints are indicated or required for proper performance of work, form metal to provide for proper installation of elastomeric sealant, in compliance with industry standards.

E. Separate metal from noncompatible metal or corrosive substrates by coating concealed surfaces at locations of

contact, with bituminous coating or other permanent separation as recommended by manufacturer.

F. Provide all matching gutter, downspout, and accessories such as tailpieces and basket strainers to modify existing in conjunction with new work. Provide watertight seams and expansion joints. Seal with elastomeric or epoxy sealants.

2.04 PREFABRICATED METAL

A. Acceptable Manufacturers

1. Single Ply Fascia System by W. P. Hickman Systems, Inc.

2. Presto Lock Fascia System by Johns Manville.

3. Anchor-Tite Fascia by Metal-Era Roof Edge Systems.

B. Finishes

1. 24 ga. Kynar coated galvanized steel. Color selected by Architect.

3. EXECUTION 3.01 INSPECTION

A. Verify roof openings, curbs, pipes, sleeves, ducts or vents through roof are solidly set, roofing perimeter items

Walton & Associates Architects, P.C. #2603 07620-4

are in place and nailing and blocking strips are in place.

B. Verify membrane termination and base flashings are in place, sealed and secure. Verify that all roof systems items necessary are installed, and ready to receive flashing and sheet metal work.

C. Beginning of installation indicates acceptance of existing conditions.

3.02 INSTALLATION

A. Comply with manufacturer's installation instructions and recommendations, and with SMACNA "Architectural Sheet Metal Manual". Anchor units of work securely in place by methods indicated, providing for thermal expansion of metal unit. Conceal fasteners where possible and set units true to line and level as indicated. Install work with laps, joints and seams which will be permanently watertight and weatherproof.

B. Where sheet metal is installed directly on cementitious or wood substrates, install paper slip sheet and course

of polyethylene underlayment. C. Bed flanges of work in thick coat of bituminous roofing cement where required for waterproof performance.

D. Provide for thermal expansion of all exposed sheet metal work in lengths not exceeding 10'-0". Unless

otherwise shown, at cap flashings, fascias and similar items provide 24" wide subflashing of same contour as exposed work and minimum 0.032" thick sheet installed centered under joints in finish work.

E. Seal all laps and joints using elastomeric sealant. Unless specifically shown, exposed joint covers are not

acceptable.

F. Install work with lines and corners of exposed units true and accurate. Form exposed faces flat and free of buckles, excessive waves and avoidable tool marks, considering the temper and reflectivity of the metal.

G. Provide uniform, neat seams with minimum exposure of solder, welds and sealant. Except as otherwise

shown, fold back the sheet metal to form a hem on the concealed side of exposed edges.

H. Conceal fasteners and expansion provisions wherever possible in exposed work and locate so as to minimize the possibility of leakage. Cover and seal work as required for watertight installation.

END 07620