1101 Front End 1 | 1 |
1101 wages | 21 |
PLA | 31 |
912 - 6 Project Labor Agreement Cover Sheet | 31 |
912 - 7 - Project Labor Agreement - February 15, 2011 | 32 |
1101 Front End 4 | 48 |
1101 Main Roof Replacement Spec Book - WHC | 55 |
Project Manager: | 55 |
Project-WHC Main Roof Project (1).pdf | 82 |
PART 1 - GENERAL | 82 |
1.1 SUMMARY | 82 |
A. Section Includes: | 82 |
1. Adhered thermoplastic PVC roofing system on metal deck, including: | 82 |
2. Replace all drains with new cast iron drain bowels. Install three (3) new cast iron drain bowls and cast iron piping. All drain bowls and new piping to be insulated. | 82 |
3. Install KEE Safety as defined in safety layout. | 82 |
4. Recertify lightning protection system when roof is completed. | 82 |
6. CCAC will be responsible for having solar panels removed and reinstalled to accommodate the roofing contractor. | 82 |
7. Install 60 mil Tremco TPA membrane, color to be chosen by CCAC from white, dark grey or tan. | 82 |
8. 240' feet of walkway will be included in the base bid | 82 |
B. Unit Prices: Refer to Division 01 Section "Unit Prices" for description of Work in this Section affected by unit prices. | 82 |
1.2 DEFINITIONS | 82 |
1.3 PREINSTALLATION MEETINGS | 82 |
A. Preinstallation Roofing Conference: Conduct conference at Project site. | 82 |
2. Review drawings and specifications. | 82 |
3. Review methods and procedures related to roofing installation, including manufacturer's written instructions. | 83 |
4. Review and finalize construction schedule and verify availability of materials, Installer's personnel, equipment, and facilities needed to make progress and avoid delays. | 83 |
5. Examine substrate conditions and finishes for compliance with requirements, including flatness and fastening. | 83 |
6. Review structural loading limitations of roof deck during and after roofing. | 83 |
7. Review base flashings, special roofing details, roof drainage, roof penetrations, equipment curbs, and condition of other construction that will affect roofing system. | 83 |
8. Review governing regulations and requirements for insurance and certificates if applicable. | 83 |
9. Review temporary protection requirements for roofing system during and after installation. | 83 |
10. Review roof observation and repair procedures after roofing installation. | 83 |
1.4 ACTION SUBMITTALS | 83 |
A. Product Data: For each type of product indicated. | 83 |
B. Sustainable Design Submittals: | 83 |
1. Product Test Reports for Solar Reflectance: For roof materials, indicating that roof materials comply with Solar Reflectance Index requirement. | 83 |
2. Product Data and Laboratory Test Reports: For adhesives and sealants, indicating compliance with requirements for low-VOC/low-emitting materials. | 83 |
C. Shop Drawings: For roofing system. Include plans, elevations, sections, details, and attachments to other work. | 83 |
1. Base flashings and membrane terminations. | 83 |
a. Indicate details meet requirements of NRCA required by this Section. | 83 |
2. Tapered insulation, including slopes and crickets. | 83 |
3. Insulation fastening patterns for corner, perimeter, and field-of-roof locations. | 83 |
D. Samples for Verification: For the following products: | 83 |
1. Sheet roofing, of color specified, including T-shaped side and end lap seam. | 83 |
2. Walkway pads or rolls. | 83 |
1.5 INFORMATIONAL SUBMITTALS | 84 |
B. Qualification Data: For Installer, Manufacturer and Roofing Inspector. | 84 |
1. Include letter from Manufacturer written for this Project indicating approval of Installer. | 84 |
C. Manufacturer Certificates: Signed by roofing manufacturer certifying that roofing system complies with requirements specified in "Performance Requirements" Article. | 84 |
1. Submit evidence of compliance with performance requirements. | 84 |
a. Include: UL listing certificate. | 84 |
2. Product Compatibility: Indicate manufacturer has verified compatibility of roofing system components, including but not limited to: Roofing membrane, flashing sheets, adhesives, and sealants. | 84 |
D. Warranties: Unexecuted sample copies of special warranties. | 84 |
1.6 CLOSEOUT SUBMITTALS | 84 |
A. Executed copies of warranties. | 84 |
B. Maintenance Data: To include in maintenance manuals. | 84 |
1.7 QUALITY ASSURANCE | 84 |
1. An authorized full-time technical employee of the manufacturer. | 85 |
D. Manufacturer's Installation Instructions: Obtain and maintain on-site access to manufacturer's written recommendations and instructions for installation of products. | 85 |
1.8 DELIVERY, STORAGE, AND HANDLING | 85 |
1. Discard and legally dispose of liquid material that cannot be applied within its stated shelf life. | 85 |
D. Handle and store roofing materials and place equipment in a manner to avoid permanent deflection of deck. | 85 |
1.9 PROJECT / FIELD CONDITIONS | 85 |
1. Provide tie-offs at end of each day's work to cover exposed roofing and insulation with a course of roofing sheet securely in place with joints and edges sealed. | 85 |
2. Complete terminations and base flashings and provide temporary seals to prevent water from entering completed sections of roofing. | 85 |
3. Remove temporary plugs from roof drains at end of each day. | 85 |
4. Remove and discard temporary seals before beginning work on adjoining roofing. | 85 |
1.10 WARRANTY | 86 |
1. Form of Warranty: Manufacturer's standard warranty form. | 86 |
2. Scope of Warranty: Work of this Section and including sheet metal details and termination details installed by the roof system Installer and approved by the Roof System Manufacturer. | 86 |
3. Warranty Period: 25 years from date of completion. | 86 |
1. Inspections to occur in following years: 2, 5, 10, 15, and 20 following completion. | 86 |
C. Installer Warranty: Installer's warranty signed by Installer, as follows. | 86 |
1. Form of Warranty: Form acceptable to Roofing Manufacturer and Owner. | 86 |
2. Scope of Warranty: Work of this Section. | 86 |
3. Warranty Period: 2 years from date of completion. | 86 |
PART 2 - PRODUCTS | 86 |
2.1 ACCEPTABLE MANUFACTURER | 86 |
B. Source Limitations: Obtain components for roofing system from same manufacturer as membrane roofing or manufacturer approved by membrane roofing manufacturer. | 86 |
2.2 PERFORMANCE REQUIREMENTS | 86 |
1. Accelerated Weathering: Roofing system shall withstand 10,000 hours of exposure when tested according to ASTM G152, ASTM G154, or ASTM G155. | 86 |
2. Impact Resistance: Roof membrane shall resist impact damage when tested according to ASTM D3746/D3746M, ASTM D4272/D4272M, or the "Resistance to Foot Traffic Test" in FM Approvals 4470. | 87 |
1. NRCA Roofing Manual (Sixth Edition) for construction details and recommendations. | 87 |
2. SMACNA Architectural Sheet Metal Manual (Seventh Edition) for construction details. | 87 |
2.3 MATERIALS, GENERAL | 87 |
2.4 THERMOPLASTIC MEMBRANE MATERIALS | 87 |
A. PVC Roof Membrane: | 87 |
1. Thermoplastic PVC/TPA sheet, internally fabric reinforced, Energy Star qualified, CRRC listed, and California Title 24 Energy Code compliant, ASTM D4434 Type IV. | 87 |
a. Basis of design product: Tremco, TPA Single Ply Roof Membrane. | 87 |
b. Tensile Strength at 0 deg. F (-18 deg. C), minimum, ASTM D751: 300 lbf/in (1330 N). | 87 |
c. Tear Strength at 77 deg. F (25 deg. C), minimum, ASTM D751: 100 lbf (440 N). | 87 |
d. Elongation at 0 deg. F (-18 deg. C), minimum at fabric break, ASTM D751: 25 percent machine direction, 25 percent cross-machine direction. | 87 |
e. Minimum Thickness, nominal, ASTM D751: 0.060 in (1.5 mm). | 87 |
f. Color: White. | 87 |
g. Solar Reflectance Index (SRI), ASTM E1980: 108 (White, initial) 84 (White, 3-year aged). | 87 |
h. Recycled Content, minimum: 25 percent pre-consumer. | 87 |
B. Membrane Flashing: Manufacturer's standard, smooth-backed, sheet flashing of same material, type, reinforcement, thickness, and color as PVC sheet membrane. | 88 |
2.5 AUXILIARY ROOFING MATERIALS | 88 |
A. General: Auxiliary membrane roofing materials recommended by roofing system manufacturer for intended use, and compatible with membrane roofing. | 88 |
1. Liquid-type auxiliary materials shall comply with VOC limits of authorities having jurisdiction. | 88 |
a. Plastic Foam Adhesives: 50 g/L. | 88 |
b. Single-Ply Roof Membrane Sealants: 450 g/L. | 88 |
c. Nonmembrane Roof Sealants: 300 g/L. | 88 |
d. Sealant Primers for Nonporous Substrates: 250 g/L. | 88 |
e. Sealant Primers for Porous Substrates: 775 g/L. | 88 |
B. Membrane Adhesive: | 88 |
1. Bonding adhesive, contact-type solvent-based low VOC, for bonding TPA non-fleece-backed single ply membranes and flashings to substrates. | 88 |
a. Basis of design product: Tremco, TPA LV Single Ply Bonding Adhesive. | 88 |
b. VOC, maximum, ASTM D3960: 200 g/L. | 88 |
C. Flashing Membrane Adhesive: Same as membrane bonding adhesive. | 88 |
1. Bonding adhesive, contact-type solvent-based low VOC, for bonding TPA non-fleece-backed single ply membranes and flashings to substrates. | 88 |
a. Basis of design product: Tremco, TPA LV Single Ply Bonding Adhesive. | 88 |
b. VOC, maximum, ASTM D3960: 200 g/L. | 88 |
D. Metal Termination Bars: Manufacturer's standard, predrilled stainless-steel or aluminum bars, approximately 1 by 1/8 inch (25 mm by 3 mm) thick; with anchors. | 88 |
E. Joint Sealant: Elastomeric joint sealant compatible with roofing materials, with movement capability appropriate for application. | 88 |
1. Joint Sealant, Polyurethane: ASTM C920, Type S, Grade NS, Class 50 single-component moisture curing sealant, formulated for compatibility and use in dynamic and static joints; paintable. | 89 |
a. Basis of design product: Tremco, TremSEAL Pro. | 89 |
b. Volatile Organic Compounds (VOC), maximum, ASTM D3960: 40 g/L. | 89 |
c. Hardness, Shore A, ASTM C661: 40. | 89 |
d. Adhesion to Concrete, ASTM C794: 35 pli. | 89 |
e. Tensile Strength, ASTM D412: 350 psi (2410 kPa). | 89 |
f. Color: Limestone. | 89 |
F. Prefabricated Pipe Flashings: As recommended by roof membrane manufacturer. | 89 |
2.6 ROOF INSULATION MATERIALS | 89 |
1. Tapered Insulation: Provide factory-tapered insulation boards fabricated to slope of 1/8 inch per 12 inches (1:96) unless otherwise indicated. | 89 |
2. Provide preformed saddles, crickets, tapered edge strips, and other insulation shapes where indicated for sloping to drain. Fabricate to slopes indicated, not less than two times the roof slope. | 89 |
B. Roof Insulation: Provide roof insulation product in thicknesses indicated in Part 3 as follows: | 89 |
1. Board Insulation, Polyisocyanurate: CFC- and HCFC- free, with recycled content glass-fiber mat facer on both major surfaces, ASTM C1289 Type II Class 1. | 89 |
a. Compressive Strength, ASTM D1621: Grade 2: 20 psi (138 kPa). | 89 |
b. Conditioned Thermal Resistance at 75 deg. F (24 deg. C): 14.4 at 2.5 inches (50.8 mm) thick. | 89 |
2.7 ROOF INSULATION ACCESSORIES | 89 |
A. Tapered Edge Strips: ASTM C208, Type II, Grade 1, cellulosic-fiber insulation board. | 89 |
2.8 WALKWAY MATERIALS | 90 |
A. Walkway Material: | 90 |
1. Walkway roll, reinforced PVC/TPA membrane roll with serrated slip-resistant surface, fabricated for heat welding to compatible PVC/TPA membrane surface. | 90 |
a. Basis of design product: Tremco, TPA Walkway Roll. | 90 |
b. Roll Size: 36 inches by 60 foot (914 mm by 18.3 m). | 90 |
c. Thickness / Color: Yellow, 0.156 inch (4 mm). | 90 |
d. Tensile, Grab ASTM D751: 200 lbf (890 N). | 90 |
e. Tear Strength, Tongue : 45 lbf (200N). | 90 |
f. Low Temp Flex: -40 deg F. (-40 deg C.). | 90 |
PART 3 - EXECUTION | 90 |
3.1 EXAMINATION | 90 |
A. Examine substrates, areas, and conditions, with Installer present, for compliance with the following requirements and other conditions affecting performance of roofing system: | 90 |
1. Verify that roof openings and penetrations are in place and curbs are set and braced and that roof drain bodies are securely clamped in place. | 90 |
2. Existing Prepared Roof Substrate: Verify that existing insulation and substrate is sound and dry. | 90 |
3. Steel Roof Deck: | 90 |
a. Verify that deck is securely fastened and properly supported with no projecting fasteners and with no adjacent units in excess of 1/16 inch (1.6 mm) out of plane relative to adjoining deck. | 90 |
4. Verify that existing insulation and substrate is sound and dry. | 90 |
B. Proceed with installation only after unsatisfactory conditions have been corrected. | 90 |
3.2 PREPARATION | 91 |
A. Clean substrate of dust, debris, moisture, and other substances detrimental to roofing installation according to roofing system manufacturer's written instructions. Remove sharp projections. | 91 |
3.3 INSTALLATION, GENERAL | 91 |
A. Install roofing system in accordance with manufacturer’s written instructions and approved details. | 91 |
B. Install wood cants, blocking, curbs, and nailers in accordance with requirements of Division 06 Section "Miscellaneous Rough Carpentry." | 91 |
1. Base Flashing at Parapet Wall: Plates TP-1 and TP-1S. | 91 |
2. Base Flashing and Counterflashing at Parapet Wall: Plates TP-5 and TP-5S. | 91 |
3. Base Flashing and Counterflashing at Parapet Wall, Movement Joint: Plates TP-6 and TP-6S. | 91 |
4. Base and Surface-mounted Counterflashing: Plates TP-4 and TP-4S. | 91 |
5. Perimeter Edge, Raised: Plates TP-2 and TP-2S. | 91 |
6. Perimeter Edge, Embedded Edge: Plates TP-3 and TP-3S. | 91 |
7. Perimeter Edge, Draining: Plates TP-3A and TP-3AS. | 91 |
8. Options for Perimeter Base Securement (Roof-to-Wall and Roof-to-Curb Intersections): Single Ply Table 7.1. | 91 |
9. Options for Perimeter Base Securement (Roof-to-Wall and Roof-to-Curb Intersections: Single Ply Table 7.2. | 91 |
10. Guide for Sheet Metal Fascia Edges for Thermoset and Thermoplastic Membrane: Single-Ply – Table 1. | 91 |
11. Scupper, Raised: Plates TP-21 and TP-21S. | 91 |
12. Gutter at Draining Edge: Plates TP-22 and TP-22S. | 92 |
13. Expansion Joint, with metal cover: Plates TP-7 and TP-7S. | 92 |
14. Expansion Joint, with premanufactured cover: Plates TP-7A and TP-7AS. | 92 |
15. Curb Detail at Rooftop HVAC Units, Premanufactured: Plates TP-12 and TP-12S. | 92 |
16. Curb Detail at Rooftop HVAC Units, Job-Built, Wood: Plates TP-13 and TP-13S. | 92 |
17. Curb Detail at Skylight, Roof Hatch, and Smoke Vents: Plates TP-14 and TP-14S. | 92 |
18. Penetration, Structural Member: Plates TP-15 and TP-15S. | 92 |
19. Penetration, Sheet Metal Enclosure: Plates TP-16 and TP-16S. | 92 |
20. Penetration, Stack Flashing: Plates TP-17 and TP-17S. | 92 |
21. Penetration, Plumbing Vent: Plates TP-18 and TP-18S. | 92 |
22. Penetration, Plumbing Vent, Premanufactured Boot: Plates TP-18A and TP-18AS. | 92 |
23. Penetration, Pocket: Plates TP-19 and TP-19S. | 92 |
24. Roof Drain: Plates TP-20 and TP-20S. | 92 |
25. Guide for Clearances between Pipes / Walls / Curbs – Table 4. | 92 |
26. Guide for Crickets and Saddles – Table 5. | 92 |
27. Guide for Edge Scuppers with Tapered Saddles - Table 6. | 92 |
3.4 INSULATION INSTALLATION | 92 |
A. Coordinate installing membrane roofing system components so insulation is not exposed to precipitation or left exposed at the end of the workday. | 92 |
B. Comply with membrane roofing system and insulation manufacturer's written instructions for installing roof insulation. | 92 |
C. Tapered Insulation and Crickets: Install tapered insulation under area of roofing to conform to slopes indicated. | 92 |
1. Where crickets are indicated or required to provide positive slope to drain, make slope of crickets minimum of two times the roof slope, not less than 1/4 inch in 12 inches (1:48). | 92 |
1. Tapered Insulation System for Flat Roof Deck: Install insulation as follows: | 93 |
a. Minimum total thickness of Continuous Insulation: 2 inches. | 93 |
b. Minimum Continuous Insulation R-value: Not less than 30. | 93 |
F. Trim surface of insulation where necessary at roof drains so completed surface is flush and does not restrict flow of water. | 93 |
1. Cut and fit insulation within 1/4 inch (6 mm) of nailers, projections, and penetrations. | 93 |
1. Fasten insulation according to requirements in FM Global's "RoofNav" for specified Windstorm Resistance Classification. | 93 |
2. Fasten insulation to resist uplift pressure at corners, perimeter, and field of roof. | 93 |
3.5 ADHERED MEMBRANE ROOFING INSTALLATION | 93 |
A. Adhere membrane roofing over area to receive roofing and install according to membrane roofing system manufacturer's written instructions. | 93 |
B. Start installation of membrane roofing in presence of membrane roofing system manufacturer's technical personnel. | 93 |
C. Accurately align membrane roofing and maintain uniform side and end laps of minimum dimensions required by manufacturer. Stagger end laps. | 93 |
E. In addition to adhering, mechanically fasten membrane roofing securely at terminations, penetrations, and perimeter of roofing. | 93 |
F. Apply membrane roofing with side laps shingled with slope of roof deck where possible. | 93 |
1. Test lap edges with probe to verify seam weld continuity. Apply lap sealant to seal cut edges of sheet membrane. | 94 |
2. Verify field strength of seams a minimum of twice daily and repair seam sample areas. | 94 |
3. Repair tears, voids, and lapped seams in roofing that does not comply with requirements. | 94 |
H. Spread sealant bed over deck drain flange at roof drains and securely seal membrane roofing in place with clamping ring. | 94 |
3.6 BASE FLASHING INSTALLATION | 94 |
A. Install sheet flashings and preformed flashing accessories and adhere to substrates according to membrane roofing system manufacturer's written instructions. | 94 |
B. Apply bonding adhesive to substrate and underside of sheet flashing at required rate and allow to partially dry. Do not apply to seam area of flashing. | 94 |
C. Flash penetrations and field-formed inside and outside corners with cured or uncured sheet flashing. | 94 |
D. Clean seam areas, overlap, and firmly roll sheet flashings into the adhesive. Hot-air weld side and end laps to ensure a watertight seam installation. | 94 |
E. Seal top termination of base flashing with a metal termination bar and a continuous bead of joint sealant. | 94 |
3.7 WALKWAY INSTALLATION | 94 |
3.8 FIELD QUALITY CONTROL | 94 |
A. Roofing Inspector: Owner will engage a qualified roofing inspector to perform roof tests and inspections and to prepare test reports. | 94 |
B. Final Roof Inspection: Arrange for roofing system manufacturer's technical personnel to inspect roofing installation on completion. | 94 |
C. Repair or remove and replace components of membrane roofing system where inspections indicate that they do not comply with specified requirements. | 95 |
D. Additional inspections, at Contractor's expense, will be performed to determine compliance of replaced or additional work with specified requirements. | 95 |
3.9 PROTECTING AND CLEANING | 95 |
C. Clean overspray and spillage from adjacent construction using cleaning agents and procedures recommended by manufacturer of affected construction. | 95 |
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