VA 07 54 23-2010 THERMOPLASTIC POLYOLEFIN (TPO) ROOFING.pdf

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1、10-10 07 54 23 - 1 SECTION 07 54 23 THERMOPLASTIC POLYOLEFIN (TPO) ROOFING SPEC WRITER NOTES: 1. Delete or edit text within if not applicable to project. Also delete any other item or paragraph not applicable in the section and renumber the paragraphs. 2. Follow the recommendations of the National R

2、oofing Contractors Association “Roofing and Waterproofing Manual“ for design criteria. 3. Slopes: Do not use on slopes over 1:12 (one inch per foot). Provide 1:50 (1/4 inch per foot) minimum slope to drains without any “Gutters“ (no slopes between drains. NO EXCEPTIONS TO MINIMUM SLOPE. Slope cricke

3、ts 1:50 (1/4-inch per foot). 4. Coordinate with plumbing requirements for roof drains and drain locations at low points and mid span where maximum deflection occurs. Do not put drains at columns or on slopes. Coordinate with insulation to provide “dishes“ at drains. 5. Coordinate details and systems

4、 used to provide for code required fire rated roofing system. Do not use unsurfaced membranes over combustible insulation on decks. 6. Use of adhered system is preferred over mechanically anchored or ballasted system. 7. Coordinate with Section 07 22 00, ROOF AND DECK INSULATION. 8. Coordinate with

5、Section 07 22 00, ROOF AND DECK INSULATION for roof insulation under the membrane. Decrease “R“ value 5 percent when mechanical fasteners are used through the insulation to compensate for parallel heat flow. 9. Do not use over polystyrene, urethane, or wood fiberboard insulation under the membrane.

6、10. Do not use over bituminous materials where direct contact occurs, including grease, oil, or other substances not compatible with TPO. Use a thin layer of insulation, slip sheet or separator sheet depending upon method of attachment or felt back sheet when minimum amount of asphalt occurs. 11. Te

7、rminate base flashings not less than 200 mm (8 inches) above roof surface including curb for building expansion joints. 12. Do not put expansion joints at roof surface level. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-10-10 07 54 23 - 2 13. Do n

8、ot use “pitch pocket“ or “sealant pocket“ in lieu of base flashings and cap flashings. 14. This specification is for use over concrete, cellular insulating concrete decks, or insulation. Insert additional text when installed directly to other decks or insulation systems not specified in Section 07 2

9、2 00, ROOF AND DECK INSULATION. PART 1 GENERAL 1.1 DESCRIPTION A. Thermoplastic Polyolefin (TPO) sheet roofing /adhered/ /mechanically fastened/ to roof deck. 1.2 RELATED WORK SPEC WRITER NOTE: Edit Related Work to reflect other sections relating directly to this section or referenced in this sectio

10、n. A. General sustainable design documentation requirements: Section 01 81 13 SUSTAINABLE DESIGN REQUIREMENTS. B. Treated wood framing, blocking, and nailers: Section 06 10 00, ROUGH CARPENTRY C. Roof Insulation: Section 07 22 00, ROOF AND DECK INSULATION. D. Sheet metal components and wind uplift r

11、equirements for roof-edge design: Section 07 60 00, FLASHING AND SHEET METAL. E. Roof hatches, equipment supports, dome type skylights, and gravity ventilators: Section 07 72 00, ROOF ACCESSORIES F. Miscellaneous items: Section 07 71 00, ROOF SPECIALTIES/ Section 07 72 00, ROOF ACCESSORIES. 1.3 APPL

12、ICABLE PUBLICATIONS SPEC WRITER NOTES: 1. Update applicable publications to current issue at time of project specification preparation. 2. Update material requirements to agree with applicable requirements (types, grades, classes,) specified in the referenced Applicable Publications. A. Publications

13、 listed below form a part of this specification to the extent referenced. Publications are referenced in the text by the basic designation only. Editions of applicable publications current on date of issue of bidding documents apply unless otherwise indicated. Provided by IHSNot for ResaleNo reprodu

14、ction or networking permitted without license from IHS-,-,-10-10 07 54 23 - 3 B. American National Standards Institute/Single-Ply Roofing Institute (ANSI/SPRI): ANSI/SPRI ES-1-03.Wind Design Standard for Edge Systems Used with Low Slope Roofing Systems. C. American Society of Civil Engineers/Structu

15、ral Engineering Institute (ASCE/SEI): ASCE/SEI-7-10.Minimum Design Loads for Buildings and Other Structures D. ASTM International (ASTM): C67-09Standard Test Methods for Sampling and Testing Brick and Structural Clay Tile C140-09.Standard Test Methods for Sampling and Testing Concrete Masonry Units

16、and Related Units C1371-04Standard Test Method for Determination of Emittance of Materials Near Room Temperature Using Portable Emissometers C1549-04Standard Test Method for Determination of Solar Reflectance Near Ambient Temperature Using a Portable Solar Reflectometer D4263.Standard Test Method fo

17、r Indicating Moisture in Concrete by the Plastic Sheet Method D4434-06Standard Specification for Poly (Vinyl Chloride) Sheet Roofing D6878-08Standard Specification for Thermoplastic Polyolefin Based Sheet Roofing E108-10.Standard Test Methods for Fire Tests of Roof Coverings E408-71(R2008)Standard T

18、est Methods for Total Normal Emittance of Surfaces Using Inspection-Meter Techniques E1918-06Standard Test Method for Measuring Solar Reflectance of Horizontal and Low-Sloped Surfaces in the Field E1980-01Standard Test Method for Measuring Solar Reflectance of Horizontal and Low-Sloped Surfaces in t

19、he Field E. American Society of Heating, Refrigeration, and Air Conditioning Engineers (ASHRAE) ASHRAE 90.1-2007Energy Standard for Buildings Except Low-Rise Residential Buildings, Appendix f. F. Cool Roof Rating Council: Provided by IHSNot for ResaleNo reproduction or networking permitted without l

20、icense from IHS-,-,-10-10 07 54 23 - 4 CRRC-1Product Rating Program, www.coolroofs.org G. FM Approvals: RoofNav Approved Roofing Assemblies and Products. 4450-89.Approved Standard for Class 1 Insulated Steel Deck Roofs 4470-10.Approved Standard for Class 1 Roof Coverings 1-28-09.Loss Prevention Data

21、 Sheet: Design Wind Loads. 1-29-09.Loss Prevention Data Sheet: Above-Deck Roof Components 1-49-09.Loss Prevention Data Sheet: Perimeter Flashing H. National Roofing Contractors Association: Roofing and Waterproofing Manual I. U.S. Department of Agriculture (USDA): USDA BioPreferred Catalog, www.biop

22、referred.gov J. U.S. Department of Energy (DoE): Roof Products Qualified Product List, www.energystar.gov 1.4 PERFORMANCE REQUIREMENTS A. Material Compatibility: Provide roofing materials that are compatible with one another under conditions of service and application required, as demonstrated by me

23、mbrane roofing manufacturer based on testing and field experience. SPEC WRITER NOTE: Retain one or more paragraphs below for typical roofing applications based upon current Federal mandates, which may include one or more of the following: 1) Guiding Principles for Federal Leadership in High Performa

24、nce and Sustainable Buildings incorporated in Executive Order 13423 “Strengthening Federal Environmental, Energy, and Transportation Management, dated January 24, 2007; 2) Energy Policy Act of 2005 (EPA 2005); 3) Energy Independence and Security Act of 2007 (EISA 2007); 4) LEED mandate; 5) Conforman

25、ce with locally-applicable requirements. B. Roofing System Energy Performance Requirements: Provide a roofing system identical to components that that have been successfully tested by a qualified independent testing and inspecting agency to meet the following requirements: SPEC WRITER NOTE: Retain p

26、aragraph below for roofs that must comply with DOEs ENERGY STAR requirements: www.energystar.gov. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-10-10 07 54 23 - 5 1. Energy Performance, Energy Star: Provide roofing system that is listed on DOEs ENE

27、RGY STAR “Roof Products Qualified Product List“ for low-slope roof products. SPEC WRITER NOTE: Retain paragraph below for LEED project requirements; note that LEED Credit SS 7.2 is not geographic location specific. 2. Solar Reflectance Index: Not less than 78 when calculated according to ASTM E1980

28、based on testing identical products by a qualified testing agency. SPEC WRITER NOTE: Retain paragraph below for roofs that must comply with California Energy Commission CEC-Title 24: . 3. Energy Performance, CRRC-1: Provide roofing system with initial solar reflectance not less than 0.70 and emissiv

29、ity not less than 0.75 when tested according to CRRC-1. SPEC WRITER NOTE: Typically retain below for VA new construction and reroofing projects in ASHRAE Climate Zones 1 through 3 and elsewhere where cool roof technology is indicated as cost-effective. Also refer to Exceptions in ASHRAE 90.1 Appendi

30、x f that address ballasted, vegetated, and ventilated roofs. 4. Energy Performance, Aged: Provide roofing system with minimum three-year aged solar reflectance not less than 0.55 when tested in accordance with ASTM C1549 or ASTM E1918, and in addition, a minimum three-year-aged thermal emittance of

31、0.75 when tested in accordance with ASTM C1371 or ASTM E408. a. Where tested aged values are not available for proposed product, submit calculations to adjust initial solar reflectance to demonstrate compliance as indicated in ASHRAE 90.1-2007 Addendum f. b. Alternatively, provide roofing system wit

32、h minimum three-year aged Solar Reflectance Index of not less than 64 when determined in accordance with the Solar Reflectance Index method in ASTM E1980 using a convection coefficient of 2.1 BTU/h-ft2 (12 W/m2K). 1.5 QUALITY CONTROL A. Installer Qualifications: 1. Licensed or approved in writing by

33、 manufacturer to perform work under warranty requirements of this Section. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-10-10 07 54 23 - 6 2. Employ full-time supervisors knowledgeable and experienced in roofing of similar types and scopes, and ab

34、le to communicate with owner and workers. B. Inspector Qualifications: Inspection of work by third-party technical inspector or technical representative of manufacturer experienced in the installation and maintenance of the specified roofing system, qualified to perform roofing observation and inspe

35、ction specified in Field Quality Control Article, to determine Installers compliance with the requirements of this Project, and approved by the manufacturer to issue warranty certification. The Roofing Inspector shall be one of the following: 1. An authorized full-time technical employee of the manu

36、facturer, not engaged in the sale of products. 2. An independent party certified as a Registered Roof Observer by the Roof Consultants Institute (RCI), retained by the Contractor or the Manufacturer and approved by the Manufacturer. C. Product/Material Requirements: 1. Obtain products from single ma

37、nufacturer or from sources recommended by manufacturer for use with roofing system and incorporated in manufacturers warranty. SPEC WRITER NOTES: 1. Retain paragraph below when it is appropriate to incorporate Federal Guiding Principles IV from Guiding Principles for Federal Leadership in High Perfo

38、rmance and Sustainable Buildings incorporated in Executive Order 13423 “Strengthening Federal Environmental, Energy, and Transportation Management, dated January 24, 2007, www.ofee.gov/eo/eo13423_main.asp: Enhance Indoor Environmental Quality: Biobased Content Requirement. Requirement differs from r

39、elated requirements in LEED definitions. 2. Projects General Requirements should indicate goals for percentages of bio-based, rapidly-renewable, and certified sustainable wood products. 2. Bio-Based Materials: Where applicable, provide products designated by USDA and meeting or exceeding USDA recomm

40、endations for bio-based content, and products meeting Rapidly Renewable Materials and certified sustainable wood content definitions; refer to www.biopreferred.gov. D. Roofing system design standard requirements: Provided by IHSNot for ResaleNo reproduction or networking permitted without license fr

41、om IHS-,-,-10-10 07 54 23 - 7 1. Recommendations of the NRCA “Roofing and Waterproofing Manual“ applicable to modified bituminous sheet roofing for storage, handling and application. 2. Recommendations of FM Approvals 1-49 Loss Prevention Data Sheet for Perimeter Flashings. 3. Recommendations of ANS

42、I/SPRI ES-1 for roof edge design. SPEC WRITER NOTE: Retain paragraph below and enter required uplift pressures if roofing system is required to be designed per ASCE.SEI 7 by local building code. 4. Roofing System Design: Provide roofing system that is identical to systems that have been successfully

43、 tested by a qualified testing and inspecting agency to resist uplift pressure calculated according to ASCE/SEI 7. a. Corner Uplift Pressure: /00 kPa/sq. m (00 lbf/sq. ft.)/. b. Perimeter Uplift Pressure: /00 kPa/sq. m (00 lbf/sq. ft.)/. c. Field-of-Roof Uplift Pressure: /00 kPa/sq. m (00 lbf/sq. ft

44、.)/. SPEC WRITER NOTE: Retain and edit FM Approvals Listing requirement for VA facilities. 5. FM Approvals Listing: Provide roofing membrane, base flashing, and component materials that comply with requirements in FM Approvals 4450 and FM Approvals 4470 as part of a roofing system and that are liste

45、d in FM Approvals “RoofNav“ for Class 1 or noncombustible construction, as applicable. Identify materials with FM Approvals markings. SPEC WRITER NOTES: 1. Select one option in first subparagraph below based on windstorm classification of Project. Utilize calculation based upon FM Approvals Loss Pre

46、vention Data Sheet 1-28 to determine the number that establishes the minimum FM Approvals approval rating. 2. Verify availability of roofing systems that meet these classifications. Other options for classifications increase in increments of 15, e.g., Class 1A-135, 1A-150, 1A-165, and higher. 3. “Cl

47、ass 1A“ signifies meeting ASTM E108, Class A fire performance for FM-approved Class 1 roof coverings. 4. For areas having three or more hailstorms annually, FM recommends roofing systems rated SH (severe hail) instead of MH (moderate hail). a. Fire/Windstorm Classification: Class 1A-/60/ /75/ /90/ /

48、105/ /120/. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-10-10 07 54 23 - 8 b. Hail Resistance: /MH/ /SH/. SPEC WRITER NOTE: Consider retaining requirement below in addition to FM Approval Listing requirement above for high windstorm classificatio

49、n areas (1A-105 or greater) to allow for broader participation in bidding. 6. High Wind Zone Design Requirement: Contractor Option: In lieu of FM Approval Listing windstorm classification, provide roofing membrane, base flashing, and component materials that comply with Miami-Dade County requirements. E. Pre-Roofing Meeting: 1. Upon completion