Copyright 2014 AIAMasterSpec Premium06/14

PRODUCT MASTERSPEC LICENSED BY ARCOM TO COVESTROLLC.

Copyright 2014 by The American Institute of Architects (AIA)

Exclusively published and distributed by Architectural Computer Services, Inc. (ARCOM) for the AIA

This Product MasterSpec Section is licensed by ARCOM to Covestro LLC ("Licensee").

This Product MasterSpec Section modifies the original MasterSpec text, and does not include the full content of the original MasterSpec Section.

Revisions made to the original MasterSpec text are made solely by the Licensee and are not endorsed by, or representative of the opinions of, ARCOM or The American Institute of Architects (AIA). Neither AIA nor ARCOM are liable in any way for such revisions or for the use of this Product MasterSpec Section by any end user. A qualified design professional should review and edit the document to suit project requirements.

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SECTION 075700 - COATED FOAMED ROOFING

TIPS:

To view non-printing Editor's Notes that provide guidance for editing, click on Masterworks/SingleFile Formatting/Toggle/Editor's Notes.

To read detailed research, technical information about products and materials, and coordination checklists, click on Masterworks/Supporting Information.

Revise this Section by deleting and inserting text to meet Project-specific requirements.

Verify that Section titles referenced in this Section are correct for this Project's Specifications; Section titles may have changed.

PART 1 - GENERAL

1.1RELATED DOCUMENTS

Retain or delete this article in all Sections of Project Manual.

  1. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division01 Specification Sections, apply to this Section.

1.2SUMMARY

  1. Section Includes:
  2. Spray-applied, coated, polyurethane foam roofing.
  3. Walkways.
  4. Related Requirements:

Retain subparagraphs below to cross-reference requirements Contractor might expect to find in this Section but are specified in other Sections.

  1. [Section061000 "Rough Carpentry"] [Section061053 "Miscellaneous Rough Carpentry"] for wood blocking, curbs, cants, and nailers.
  2. Section076200 "Sheet Metal Flashing and Trim" for foam stops, roof penetration flashings, and counterflashings.
  3. Section 077100 "Roof Specialties" for counterflashings, gravel stops, facias, and expansion joints.
  4. Section079200 "Joint Sealants" for joint sealants, fillers, and preparation.

1.3REFERENCES

  1. ASTM C 518 - Standard Test Method for Steady-State Thermal Transmission Properties by Means of the Heat Flow meter Apparatus.
  2. ASTM D 93 - Standard Test Methods for Flash Point by Pensky-Martens Closed Cup Tester.
  3. ASTM D 412 - Standard Test Methods for Vulcanized Rubber and Thermoplastic Elastomers - Tension.
  4. ASTM D 562 - Standard Test method for Consistency of Paints measuring Krebs unit (KU) Viscosity Using Stormer-Type Viscometer.
  5. ASTM D 471 - Standard test Method for Rubber Property, Effect of Liquids.
  6. ASTM D 570 - Standard Test Method for Water Absorption of Plastics.
  7. ASTM D 624 - Standard test Method for Tear Strength of Conventional Vulcanized Rubber and Thermoplastic Elastomers.
  8. ASTM D 903 - Standard Test Method for Peel or Stripping Strength of Adhesive Bonds, adhesive bonding, peel strength, stripping strength.
  9. ASTM D 1353 - Standard test Method for Nonvolatile Matter in Volatile Solvents for Use in Paint, Varnish, Lacquer, and related Products.
  10. ASTM D 1549 - Test Method for Determination of Solar Reflectance.
  11. ASTM D 1621 - Standard Test Method for Compressive Properties of Rigid Cellular Plastics.
  12. ASTM D 1622 - Standard Test Method for Apparent Density of Rigid Cellular Plastics.
  13. ASTM D 1644 - Standard Test Methods for Nonvolatile Content of Varnishes.
  14. ASTM D 1653A - Standard Test Methods for Water Vapor Transmission of Organic Coating Films.
  15. ASTM D 2126 - Standard Test Method for Response of Rigid Cellular Plastics to Thermal and Humid Aging.
  16. ASTM D 2240 - Standard Test Method for Rubber Property, Durometer Hardness.
  17. ASTM D 2370 - Standard Practice for Calculating Viscosity Index from Kinematic Viscosity at 40 and 100 degrees C.
  18. ASTM D 2697 - Standard Test Method for Volume Nonvolatile Matter in Clear or Pigmented Coatings.
  19. ASTM D 2794 - Standard Test Method for Resistance of Organic Coatings to the Effects of Rapid Deformation (Impact).
  20. ASTM D 2856 - Standard Test Method for Open-Cell Content of Rigid Cellular Plastics by the Air Pycnometer.
  21. ASTM D 6083 - Standard Specification for Liquid Applied Acrylic Coating Used in Roofing.
  22. ASTM D 6694 - Specification for Liquid-Applid Silicone Coating Used in Spray Polyurethane Foam Roofing.
  23. ASTM E 84 - Standard Test Method for Surface Burning Characteristics of Building Materials, flame spread, flame spread index, smoke developed.
  24. American Wood Preserve Bureau (AWPB) Standard LP-2.
  25. Covestro Roofing Guidelines.
  26. SPFA (Spray Polyurethane Foam Alliance) - AY Documents
  27. UL 790 - Standard Test Methods for Fire tests of Roof Coverings.

1.4PREINSTALLATION MEETINGS

Retain "Preinstallation Conference" Paragraph below if Work of this Section is extensive or complex enough to justify a conference.

  1. Preinstallation Conference: Conduct conference at [Project site] <Insert location>.

If needed, insert list of conference participants not mentioned in Section013100 "Project Management and Coordination."

Retain subparagraph below if additional agenda items specific to Project are required but not mentioned in Section013100 "Project Management and Coordination."

  1. Review methods and procedures related to coated foamed roofing including, but not limited to, the following:
  2. Load limitations on in-place roofing.
  3. Construction schedule. Verify availability of materials, Installer's personnel, equipment, and facilities needed to make progress and avoid delays.

Coordinate first subparagraph below with "Field Quality Control" Article.

  1. Surface preparation specified in other Sections.
  2. Minimum curing period.
  3. Forecasted weather conditions.
  4. Special details and sheet flashings.
  5. Repairs.
  6. Insert agenda items>.

1.5ACTION SUBMITTALS

  1. Product Data: For each type of product.
  2. Include manufacturer's written instructions for evaluating, preparing, and treating substrate; technical data; and tested physical and performance properties.
  3. Sustainable Design Submittals:
  4. Product Test Reports: For roof materials, documentation indicating that roof materials comply with Solar Reflectance Index requirements.

"Product Data" Subparagraph below applies to LEED 2009 NC, CI, and CS; LEEDv4; IgCC; ASHRAE189.1; and Green Globes. Coordinate with requirements for adhesives and sealants.

  1. Product Data: For adhesives and sealants, indicating VOC content.

"Laboratory Test Reports" Subparagraph below applies to LEED 2009 for Schools, LEEDv4, IgCC, ASHRAE189.1, and Green Globes. Coordinate with requirements for adhesives and sealants.

  1. Laboratory Test Reports: For adhesives and sealants, indicating compliance with requirements for low-emitting materials.

Retain "Samples for Initial Selection" and "Samples for Verification" paragraphs below for two-stage Samples.

  1. Samples for Initial Selection: For each type of exposed product, finish, and color.
  2. Include Samples of auxiliary materials and accessories involving color and finish selection.
  3. Samples for Verification: For coated foamed roofing, prepared on Samples of size indicated below:
  4. Samples, 24 by 24 inches (600 by 600 mm), on rigid backing, showing polyurethane foam of thickness required and stepped coatings in colors required to illustrate buildup of coated foamed roofing.
  5. Include Samples of auxiliary materials and accessories to verify color and finish selected.

1.6INFORMATIONAL SUBMITTALS

Coordinate "Qualification Data" Paragraph below with qualification requirements in Section014000 "Quality Requirements" and as may be supplemented in "Quality Assurance" Article.

  1. Qualification Data:
  2. For SPF Supplier: Copy of Certificate of Accreditation by the SPFA PCP.
  3. For SPF Contractor Company: Qualification by Covestro that the contractor is authorized to install products and can submit completed work for a manufacturer's warranty.
  4. For SPF Individual Applicator(s): Copy of certificate of completion of the High Pressure Safety Training from the Center for the Polyurethane Industry, and a copy of certification from either the SPFA PCP (Master Roofing Installer) or Certificate of training from the manufacturer.

Retain "Product Certificates" Paragraph below to require submittal of product certificates from manufacturers.

  1. Product Certificates: For each type of coated foam roofing, certifications that products meet or exceed specified requirements.
  2. Evaluation Reports: For coated foamed roofing, ICC-ESR 1221.

Retain "Field quality-control reports" Paragraph below if Contractor is responsible for field quality-control testing and inspecting.

  1. Field quality-control reports.
  2. Sample Warranty: For special warranty.

1.7CLOSEOUT SUBMITTALS

  1. Maintenance Data: For coated foamed roofing to include in maintenance manuals.

1.8QUALITY ASSURANCE

Retain "SPF Contractor Company Qualifications" Paragraph below if manufacturer approves, authorizes, or licenses Installer, which is common practice and is generally required for warranties. The SPFA PCP is the nationally recognized accreditation program of the SPF industry and evaluates and certifies individuals to four levels: Assistant, Installer, Master Installer, and Project Manager. Of all four levels of certification, only the Master installer has passed a field exam in which they demonstrate spraying skill, and if qualification to the SPFA PCP will be retained as a requirement, the Master Installer level should be specified.

  1. Installer Qualifications: A qualified installer who is approved, authorized, or licensed by spray polyurethane foam and coating manufacturer for installation of manufacturer's products.
  2. Center for the Polyurethane industry (CPI) High Pressure Safety Training: Submit current CPI ID numbers for all workers.
  3. Submit copy of current SPFA PCP individual certification card for Roofing Master Installer or Certificate of Completion of manufacturer training.
  4. Contractor Company Qualification:
  5. Submit Accreditation from Covestro that Contractor is approved and authorized for installation of manufacturer's product and eligible to submit completed job for warranty.
  6. Manufacturer Qualification:
  7. Submit documentation from SPFA PCP that manufacturer is an Accredited Supplier Company.
  8. Comply with recommendations in Covestro Roofing Guidelines and in SPFAAY-104, "Spray Polyurethane Foam Systems for New and Remedial Roofing."

1.9DELIVERY, STORAGE, AND HANDLING

  1. Deliver materials to Project site with manufacturer's name, product brand name and type, date of manufacture, shelf life, and directions for storing and mixing with other components.
  2. Store materials in their original undamaged containers in a clean, dry, protected location and within the temperature range required by manufacturer.
  3. Remove and replace material that cannot be applied within its stated shelf life.

1.10WARRANTY

When warranties are required, verify with Owner's counsel that warranties stated in this article are not less than remedies available to Owner under prevailing local laws.

Many coating manufacturers offer roofing-system warranties specified in "Special Warranty" Paragraph below, jointly warranting the polyurethane foam and coating. These warranties include materials and workmanship. Verify warranty availability with manufacturers. Revise paragraph if materials-only warranty, usually limited to original purchase price of materials, is required.

  1. Special Warranty: Manufacturer agrees to repair or replace coated foamed roofing that does not comply with requirements or that does not remain watertight within specified warranty period.

Verify available warranties and warranty periods for coated foamed roofing. Warranty periods of five and 10 years predominate. Warranty periods longer than 10 years require a higher level of accreditation by the manufacturer.

  1. Warranty Period: [Five] [10] [15] [20] <Insert number> years from date of Substantial Completion.

PART 2 - PRODUCTS

See Editing Instruction No.1 in the Evaluations for cautions about named manufacturers and products. For an explanation of options and Contractor's product selection procedures, see Section016000 "Product Requirements."

2.1MATERIALS, GENERAL

  1. Material Compatibility: Provide polyurethane foam, coatings, substrate board, and auxiliary materials that are compatible with one another and with substrate under conditions of service and application, as demonstrated by manufacturer based on testing and field experience.
  2. Source Limitations for Coated Foamed Roofing System: Obtain coating from single source from single manufacturer and polyurethane foam from single manufacturer acceptable in writing to coating manufacturer.

2.2PERFORMANCE REQUIREMENTS

  1. General Performance: Coated foamed roofing shall withstand exposure to weather without failure due to defective manufacture, installation, or other defects in construction and shall remain watertight.
  2. Fire-Test-Response Characteristics: Provide coated foamed roofing with the fire-test-response characteristics indicated, as determined by testing identical systems according to test methods below for deck type and slopes indicated by a qualified testing and inspecting agency that is acceptable to authorities having jurisdiction.
  3. [ClassA] [ClassB] roof covering according to ASTME108 or UL790.

Revise "Surface-Burning Characteristics" Subparagraph below to suit Project. Compliance with flame-spread index is required by the IBC for foam plastic insulation; the IBC places no limit on smoke-developed index for roof applications.

  1. Surface-Burning Characteristics: Comply with ASTME84 or UL723; testing by a qualified testing agency. Identify products with appropriate markings of applicable testing agency.
  2. Flame-Spread Index: 75 or less.

Retain "Roofing-System Design" Paragraph below if coated foamed roofing is to be designed to withstand uplift pressure established by ASCE/SEI7. This may be required if using substrate board or other material between the coated foamed roofing and substrate.

  1. Roofing-System Design: Provide a coated foamed roofing system that is identical to systems that have been successfully tested by a qualified testing and inspecting agency to resist uplift pressure calculated according to ASCE/SEI7.

Revise design uplift pressures in "Corner Uplift Pressure," "Perimeter Uplift Pressure," and "Field-of-Roof Uplift Pressure" subparagraphs below if requirements of authorities having jurisdiction are more stringent than ASCE/SEI7. Retain with "FM Approvals Listing" Paragraph below if both ASCE/SEI7 and FM Approvals criteria apply. Delineate dimensions of corners, perimeter, and field of roof on Drawings.

  1. Corner Uplift Pressure: <Insert lbf/sq. ft. (kPa/sq.m)>.
  2. Perimeter Uplift Pressure: <Insert lbf/sq. ft. (kPa/sq.m)>.
  3. Field-of-Roof Uplift Pressure: <Insert lbf/sq. ft. (kPa/sq.m)>.

Retain "FM Approvals Listing" Paragraph below if Project is FM Global insured or if FM Global requirements are used to set a minimum quality standard. Coordinate requirements of FM Global classification with other requirements in this Section. Replace FM Global-listing requirements with UL's wind-uplift and fire-test-response requirements if required for Project.

  1. FM Approvals Listing: Provide roofing system and component materials that comply with requirements in FM Approvals4470 for roof covers as part of a foamed roofing system and that are listed in FM Global's "Approval Guide" for Class1 or noncombustible construction, as applicable. Identify materials with FM Global markings.

Retain one option in "Fire/Windstorm Classification" Subparagraph below based on windstorm classification of Project. Verify availability of roofing systems that comply with retained classification.

  1. Fire/Windstorm Classification: Class1A-[60] [75] [90] [105] [120] <Insert number>.
  2. Hail-Resistance Classification: [MH] [SH].

"Solar Reflectance Index" Paragraph below applies to LEED 2009. First option is minimum for roofs with slopes of 2:12 or less; second option is for roofs with slopes steeper than 2:12.

  1. Solar Reflectance Index: Not less than [78] [29] when calculated according to ASTME1980, based on testing identical products by a qualified testing agency.

Retain first "Energy Performance" Paragraph below for roofs that must comply with the EPA/DOE's ENERGY STAR requirements. The EPA/DOE's "ENERGY STAR Roof Product List" is available in PDF at

  1. Energy Performance: Provide coated foam roofing that is listed on the EPA/DOE's "ENERGY STAR Roof Product List" for low-slope roof products.

Retain "Energy Performance" Paragraph below for roofs that must comply with local "cool-roof" energy legislation; verify requirements with authorities having jurisdiction. Example and options below are for low-slope roofs that must comply with prescriptive approach of CCR Title24 (California Building Standards Code).

  1. Energy Performance: Provide coated foamed roofing according to one of the following when tested according to CRRC-1:
  2. Three-year, aged solar reflectance of not less than [0.55] <Insert value> and emissivity of not less than [0.75] <Insert value>.
  3. Three-year, aged Solar Reflectance Index of not less than [64] <Insert value> when calculated according to ASTME1980.

2.3POLYURETHANE FOAM, 2.7 LB DENSITY

Retain "Polyurethane Foam" Paragraph below. TypeIII and TypeIV set minimum compressive strengths of 40 and 60 psi (276 and 414 kPa), respectively, as well as other performance characteristics. Revise below for ASTMD7425, discussed in the Evaluations, and its two foam types if required and if this is acceptable to authorities having jurisdiction; verify availability of products with manufacturers.

Polyurethane Foam is generally available in different "speeds" which are designed for different temperature ranges. The speed of the foam is generally not specified, to allow for environmental conditions during the time of application.

Covestro; Bayseal 2.7 has a density of 2.7 lb/cu.ft. and a compressive strength of 45 psi.

  1. Polyurethane Foam: Rigid, cellular polyurethane; complying with ASTMC1029, TypeIII; spray applied, with fire retardants as required, and acceptable to coating manufacturer.
  2. Basis-of-Design Product: Subject to compliance with requirements, provide Covestro LLC; Bayseal 2.7 or a comparable product by one of the following:
  3. Insert manufacturer's name>.

Density and surface-burning requirements are not included in ASTMC1029. "In-Place Density" and "Surface-Burning Characteristics" subparagraphs below represent typical, published, minimum-density range and maximum flame-spread index; revise to suit Project or insert other attributes if required.

  1. In-Place Density: 2.7 lb/cu. ft.(44.9 kg/cu.m); ASTMD1622.
  2. Surface-Burning Characteristics: Report the surface burning characteristics in accordance with ASTME84; testing by a qualified testing agency. Identify products with appropriate markings of applicable testing agency.

Value in "Flame-Spread Index" Subparagraph below is required for foam plastic insulation according to the IBC, which excludes a smoke-development requirement for roofing applications.

  1. Flame-Spread Index: [75] <Insert value> or less.
  1. Aged R-value: 6.4 hr/sq.ft./degrees F/BTU minimum at 1 inch(25 mm) thick when tested in accordance with ASTM C 518.
  2. Dimensional Stability: Less than 5 percent change in volume.
  3. Closed Cell Content: Greater than 90 percent when tested in accordance with ASTM D 2856.

2.4POLYURETHANE FOAM, 3.0 LB DNSITY