08-01-16

SECTION 075216.12

HOTMOPPED STYRENEBUTADIENESTYRENE MODIFIED BITUMINOUS MEMBRANE ROOFING

SPEC WRITER NOTES:

1. Delete text between //______// not applicable to project. Edit remaining text to suit project.

2. This roofing system is not to be used for any patientoccupied buildings.

3. Slopes: Do not use on slopes over 1/10 (1 inch per 12inches). Provide 1/50 (1/4 inch per 12inches) minimum to drains without any "Gutters" (no slopes between drains). Slope crickets 1/50 (1/4 inch per 12inches). NO EXCEPTION TO MINIMUM SLOPE.

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 sumps at drains.

5. Coordinate details and systems used to provide code required fire rated roofing system.

6.Coordinate with Section 072200, ROOF AND DECK INSULATION for roof insulation under the membrane. Decrease Rvalue 5 percent when mechanical fasteners are used through insulation to compensate for parallel heat flow.

7. Terminate base flashings minimum 200mm (8inches) above roof surface including curb for building expansion joints.

8. Do not put expansion joints at roof surface level.

9. Do not use "pitch pockets" or "sealant pockets" in lieu of base flashings and cap flashings.

10. This specification is for use over cellular insulating concrete decks, concrete decks or insulation. Insert additional text when installed directly to other decks or insulation systems not specified in Section 072200, ROOF AND DECK INSULATION.

11. Do not use pipe boots that provide less than 200mm (8inch) height above roof.

PART 1 - GENERAL

1.1SUMMARY

  1. Section Includes:
  2. Modified bituminous sheet roofing and base flashing installed using hotapplied asphalt on new construction with //solar reflective granular coating // // smooth surface with applied solar reflective coating//.
  3. Repairs and alteration work, including temporary roofs.

1.2RELATED REQUIREMENTS

SPEC WRITER NOTE: Update and retain references only when specified elsewhere in this section.

  1. NonFlooring Adhesives and Sealants VOC Limits: Section 018113, SUSTAINABLE CONSTRUCTION REQUIREMENTS.
  2. Preparation of Existing Membrane Roofs and Repair Areas: Section 070150.19, PREPARATION FOR REROOFING.
  3. Roof Insulation: Section 072200, ROOF AND DECK INSULATION.
  4. Sheet metal components and wind uplift requirements for roofedge design: Section 076000, FLASHING AND SHEET METAL.
  5. Roof Membrane Color: Section 090600, SCHEDULE FOR FINISHES.

1.3APPLICABLE PUBLICATIONS

  1. Comply with references to extent specified in this section.
  2. American National Standards Institute/SinglePly Roofing Institute (ANSI/SPRI):
  3. FX101(R2006) - Standard Field Test Procedure for Determining the Withdrawal Resistance of Roofing Fasteners.
  4. American Society of Civil Engineers/Structural Engineering Institute (ASCE/SEI):
  5. 710 - Minimum Design Loads for Buildings and Other Structures.
  6. American Society of Heating, Refrigerating and AirConditioning Engineers, Inc. (ASHRAE):
  7. 90.113 - Energy Standard for Buildings Except LowRise Residential Buildings.
  8. ASTMInternational (ASTM):
  9. C6714 - Sampling and Testing Brick and Structural Clay Tile.
  10. C140/C140M15 - Sampling and Testing Concrete Masonry Units and Related Units.
  11. C137000(R2012) - Determining Chemical Resistance of Aggregates for Use in ChemicalResistant Sulfur Polymer Cement Concrete and Other ChemicalResistant Polymer Concretes.
  12. C137115 - Determination of Emittance of Materials Near Room Temperature Using Portable Emissometers.
  13. C154909(2014) - Determination of Solar Reflectance Near Ambient Temperature Using a Portable Solar Reflectometer.
  14. D146/D146M04(2012)e1 - Sampling and Testing BitumenSaturated Felts and Woven Fabrics for Roofing and Waterproofing.
  15. D312/D312M15 - Asphalt Used in Roofing.
  16. D164401(2012) - Nonvolatile Content of Varnishes.
  17. D252313 - Testing LoadStrain Properties of Roofing Membranes.
  18. D407306(2013) - TensileTear Strength of Bituminous Roofing Membranes.
  19. D426383(2012) - Indicating Moisture in Concrete by the Plastic Sheet Method.
  20. D4586/D4586M07(2012)e1 - Asphalt Roof Cement, Asbestos Free.
  21. D4601/D4601M04(2012)e1 - AsphaltCoated Glass Fiber Base Sheet Used in Roofing.
  22. D4897/D4897M01(2009) - Asphalt Coated Glass Fiber Venting Base Sheet Used in Roofing.
  23. D5147/D5147M14 - Sampling and Testing Modified Bituminous Sheet Material.
  24. D520105a(2014) - Calculating Formulation Physical Constants of Paints and Coatings.
  25. D6162/D6162M00A(2015)e1 - Styrene Butadiene Styrene (SBS) Modified Bituminous Sheet Materials Using a Combination of Polyester and Glass Fiber Reinforcements.
  26. D6163/D6163M00(2015)e1 - Styrene Butadiene Styrene (SBS) Modified Bituminous Sheet Materials Using Glass Fiber Reinforcements.
  27. D6164/D6164M11 - Styrene Butadiene Styrene (SBS) Modified Bituminous Sheet Materials Using Polyester Reinforcements.
  28. D6511/D6511M06(2011)e1 - Solvent Bearing Bituminous Compounds.
  29. E10811 - Fire Tests of Roof Coverings.
  30. E40813 - Total Normal Emittance of Surfaces Using InspectionMeter Techniques.
  31. E191806(2015) - Measuring Solar Reflectance of Horizontal and LowSloped Surfaces in the Field.
  32. E198011 - Calculating Solar Reflectance Index of Horizontal and Lowsloped Opaque Surfaces.
  33. Cool Roof Rating Council (CRRC):
  34. 115 - Product Rating Program.
  35. National Roofing Contractors Association (NRCA):
  36. Manual15 - The NRCARoofing Manual: Membrane Roof Systems.
  37. U.S. Department of Agriculture (USDA):
  38. BioPreferred® Program Catalog.
  39. ULLLC (UL):
  40. 58006 - Tests for Uplift Resistance of Roof Assemblies.
  41. 189715 - Uplift Tests for Roof Covering Systems.
  42. U.S. Department of Commerce National Institute of Standards and Technology (NIST):
  43. DOCPS 109 - Structural Plywood.
  44. DOCPS 204 - Performance Standard for WoodBased StructuralUse Panels.
  45. U.S. Environmental Protection Agency (EPA):
  46. EPA600/R93/11693 - Method for the Determination of Asbestos in Bulk Building Materials.

SPEC WRITER NOTE: Energy Star Version 2.3 is in effect until June 30, 2017. Version 3.0 becomes effective July 1, 2017.

  1. Energy Star - ENERGY STAR Program Requirements for Roof Products //Version 2.3. // Version 3.0.//

1.4PREINSTALLATION MEETINGS

  1. Conduct preinstallation meeting at project site minimum 30 days before beginning Work of this section.

SPEC WRITER NOTE: Edit participant list to ensure entities influencing outcome attend.

  1. Required Participants:
  2. Contracting Officer's Representative.
  3. //Architect/Engineer.//
  4. //Inspection and Testing Agency.//
  5. Contractor.
  6. Installer.
  7. //Manufacturer's field representative.//
  8. Other installers responsible for adjacent and intersecting work, including roof deck, flashings, roof specialties, roof accessories, utility penetrations, rooftop curbs and equipment, lightning protection, and //______//.

SPEC WRITER NOTE: Edit meeting agenda to incorporate project specific topics.

  1. Meeting Agenda: Distribute agenda to participants minimum 3 days before meeting.
  2. Installation schedule.
  3. Installation sequence.
  4. Preparatory work.
  5. Protection before, during, and after installation.
  6. Installation.
  7. Terminations.
  8. Transitions and connections to other work.
  9. Inspecting and testing.
  10. Other items affecting successful completion.
  11. Pull out of fasteners.
  12. Material storage, including roof deck load limitations.
  13. Document and distribute meeting minutes to participants to record decisions affecting installation.

1.5SUBMITTALS

  1. Submittal Procedures: Section 013323, SHOP DRAWINGS, PRODUCT DATA, AND SAMPLES.
  2. Submittal Drawings:
  3. Roofing membrane layout.

SPEC WRITER NOTE: Retain paragraph below for mechanically fastened membrane.

  1. Roofing membrane fastener pattern and spacing.
  2. Roofing membrane seaming and joint details.
  3. Roof membrane penetration details.
  4. Base flashing and termination details.
  5. Paver layout.
  6. Paver anchoring locations and details.
  1. Manufacturer's Literature and Data:
  2. Description of each product.
  3. Minimum fastener pullout resistance.
  4. Installation instructions.
  5. Warranty.
  6. Samples:
  7. Roofing Membrane: 150mm (6inch) square.
  8. Base Flashing: 150mm (6inch) square.
  9. Fasteners: Each type.
  10. Roofing Membrane Seam: 300mm (12inches) square.
  11. Sustainable Construction Submittals:

SPEC WRITER NOTE: Retain sustainable construction submittals appropriate to product.

  1. Solar Reflectance Index (SRI) for roofing membrane.
  2. Biobased Content:
  3. Show type and quantity for each product.
  4. Low PollutantEmitting Materials:
  5. Show volatile organic compound types and quantities.
  6. Energy Star label for roofing membrane.
  1. Certificates: Certify products comply with specifications.
  2. Fire and windstorm classification.

SPEC WRITER NOTE: Retain paragraph below for Florida and Gulf coast projects.

  1. High wind zone design requirements.
  2. Energy performance requirements.
  1. Qualifications: Substantiate qualifications comply with specifications.
  2. Installer, including supervisors with project experience list.
  3. Manufacturer's field representative with project experience list.
  4. Field quality control reports.

SPEC WRITER NOTE: Retain paragraph below for reroofing projects.

  1. Temporary protection plan. Include list of proposed temporary materials.
  2. Operation and Maintenance Data:
  3. Maintenanceinstructions.

1.6QUALITY ASSURANCE

  1. Installer Qualifications:
  2. Approved by roofing system manufacturer as installer for roofing system with specified warranty.
  3. Regularly installs specified products.
  4. Installed specified products with satisfactory service on five similar installations for minimum five years.
  5. Project Experience List: Provide contact names and addresses for completed projects.
  6. Employs fulltime supervisors experienced installing specified system and able to communicate with Contracting Officer's Representative and installer's personnel.
  7. Manufacturer's Field Representative:
  8. Manufacturer's fulltime technical employee or independent roofing inspector.
  9. Individual certified by Roof Consultants Institute as Registered Roof Observer.

1.7DELIVERY

  1. Deliver products in manufacturer's original sealed packaging.
  2. Mark packaging, legibly. Indicate manufacturer's name or brand, type, and manufacture date.
  3. Before installation, return or dispose of products within distorted, damaged, or opened packaging.

1.8STORAGE AND HANDLING

  1. Comply with NRCAManual storage and handling requirements.
  2. Store products indoors in dry, weathertight facility.
  3. Store adhesives according to manufacturer's instructions.
  4. Protect products from damage during handling and construction operations.
  5. Products stored on the roof deck must not cause permanent deck deflection.

1.9FIELD CONDITIONS

  1. Environment:

SPEC WRITER NOTE: Coordinate installation temperature with available adhesives. Solvent based adhesives can be used at lower temperatures.

  1. Product Temperature: Minimum 4degreesC (40degreesF) for minimum 48 hours before installation.
  2. Weather Limitations: Install roofing only during dry current and forecasted weather conditions.

1.10WARRANTY

SPEC WRITER NOTE: Always retain construction warranty. FAR includes Contractor's one year labor and material warranty.

  1. Construction Warranty: FAR clause 52.24621, "Warranty of Construction."

SPEC WRITER NOTE:

1.Specify extended manufacturer's warranties for materials only.

2. Contracting Officer's Representative must approve specification of a manufacturer's warranty.

  1. Manufacturer's Warranty: Warrant roofing system against material and manufacturing defects and agree to repair any leak caused by a defect in the roofing system materials or workmanship of the installer.

SPEC WRITER NOTE: Specify customarily available warranty period for specified products.

  1. Warranty Period: 10 years.

PART 2 - PRODUCTS

2.1SYSTEM DESCRIPTION

  1. Roofing System: Modified bituminous sheet roofing and base flashing installed using hotapplied asphalt on new construction with //solar reflective granular coating // smooth surface with applied solar reflective coating//.

2.2SYSTEM PERFORMANCE

  1. Design roofing system complying with specified performance:
  2. Load Resistance: ASCE/SEI7; Design criteria as indicated on Drawings.

SPEC WRITER NOTE: Specify actual loads when known for project.

  1. Uplift Pressures:

1)Corner Uplift Pressure: //______// kPa/sq.m (//______//psf).

2)Perimeter Uplift Pressure: //______// kPa/sq.m (//______//psf).

3)FieldofRoof Uplift Pressure: //______// kPa/sq.m (//______//psf).

SPEC WRITER NOTE:

1. Energy performance requirements apply only when white roofing membrane is specified.

2. Retain one or more paragraphs below for compliance with:

a. Guiding Principles for Federal Leadership in High Performance and Sustainable Buildings incorporated in Executive Order 13423 "Strengthening Federal Environmental, Energy, and Transportation Management, dated January 24, 2007.

b. Energy Policy Act of 2005 (EPAct).

c. Energy Independence and Security Act of 2007 (EISA).

d. LEED mandate.

e. Conformance with locallyapplicable requirements.

  1. Energy Performance:

SPEC WRITER NOTE: Retain paragraph below for Energy Star compliance.

  1. EPAEnergy Star Listed for lowslope roof products.

SPEC WRITER NOTE: Retain paragraph below for LEED heat island effect (roof) credit compliance.

  1. ASTME1980; Minimum 78 Solar Reflectance Index (SRI).

SPEC WRITER NOTE: Retain paragraph below for California Energy Commission (CEC) Title 24 compliance.

  1. CRRC1; Minimum 0.70 initial solar reflectance and minimum 0.75 emissivity.

SPEC WRITER NOTE: Typically retain below for VAnew construction and reroofing projects in ASHRAEClimate Zones 1 through 3 and elsewhere where cool roof technology is costeffective.

  1. ThreeYear Aged Performance: Minimum 0.55 solar reflectance tested in according to ASTMC1549 or ASTME1918, and minimum 0.75 thermal emittance tested in according to ASTMC1371 or ASTME408.

1)Where tested aged values are not available:

a)Calculate compliance adjusting initial solar reflectance according to ASHRAE90.1.

b)Provide roofing system with minimum 64 threeyear aged Solar Reflectance Index calculated according to ASTME1980 with 12W/sq.m/degreeK (2.1BTU/h/sq.ft.) convection coefficient.

SPEC WRITER NOTE: Edit load strain properties below to represent tensile strength of specified roof system; this allows for comparison of differing but comparablyperforming systems. Default tensile strain value of 2.67 kN (600lbf.) is recommended for roof membranes isolated from roof deck by insulation values in excess of R30, which corresponds to ASHRAE90.1 minimum requirements. High insulation values result in high daily thermallyinduced tensile strain values on conventionallylocated roof membranes.

  1. Roofing Membrane System LoadStrain Properties: Provide a roofing membrane identical to component systems that have been successfully tested by a qualified independent testing and inspecting agency to meet the following minimum loadstrain properties at membrane failure when tested according to ASTMD2523:
  2. Tensile strain at failure, at 18degreesC (0degreesF): //2.67kgf (600lbf.)// cross machine direction, minimum; //4.0 to 5.5// percent elongation at break.

2.3PRODUCTS - GENERAL

  1. Basis of Design: Section 090600, SCHEDULE FOR FINISHES.
  2. Provide roof system components from one manufacturer.
  3. Sustainable Construction Requirements:
  4. Solar Reflectance Index: 78 minimum.

SPEC WRITER NOTE:

1. Retain paragraph below when complying with Federal Guiding Principles IV from Guiding Principles for Federal Leadership in High Performance and Sustainable Buildings incorporated in Executive Order 13423 "Strengthening Federal Environmental, Energy, and Transportation Management, dated January 24, 2007, Enhance Indoor Environmental Quality - Biobased Content Requirement. Requirement differs from related requirements in LEED definitions.

2. Indicate project goals for percentages of biobased, rapidlyrenewable, and certified sustainable wood products in Section 010000, GENERAL REQUIREMENTS.

  1. Biobased Content: Where applicable, provide products designated by USDAand meeting or exceeding USDArecommendations for biobased content, and products meeting Rapidly Renewable Materials and certified sustainable wood content definitions; refer to

SPEC WRITER NOTE:

1. Section 018113, SUSTAINABLE CONSTRUCTION REQUIREMENTS includes comprehensive product list setting VOC limits for lowemitting materials.

2. Retain subparagraphs applicable to products specified in this section.

  1. Low PollutantEmitting Materials: Comply with VOC limits specified in Section 018113, SUSTAINABLE CONSTRUCTION REQUIREMENTS for the following products:
  2. Nonflooring adhesives and sealants.

2.4MEMBRANE AND SHEET MATERIALS

  1. Membrane Materials, General: Provide combination of base, ply, and cap sheet materials that have been tested in combination and comply with specified load/strain performance.

SPEC WRITER NOTE: Retain base sheet below when required as part of 2 or 3 ply system.

  1. Base Sheet: ASTMD4601/D4601M, Type II, nonperforated, with the following properties:
  2. Breaking Strength, minimum, ASTMD146/D146M: cross machine direction, 12.2kN/m (70lbf/in).
  3. Pliability, 12.7mm (1/2inch) radius bend, ASTMD146/D146M: No failures.

SPEC WRITER NOTE: Retain venting base sheet below when required as part of 2 or 3 ply system over a lightweight insulating concrete substrate.

  1. Base Sheet, Venting: ASTMD4897/D4897M, Type II, venting, nonperforated and as approved by modified bitumen roof membrane manufacturer.

SPEC WRITER NOTE: Retain base sheet below when required as part of 2 or 3 ply high tensile strength system.

  1. Base Sheet: ASTMD4601/D4601M, Type II, nonperforated, with the following properties:
  2. Breaking Strength, minimum, ASTMD146/D146M: cross machine direction, 21.0kN/m (120lbf/in).
  3. Tear Strength, minimum, ASTMD4073: cross machine direction, 880N (200lbf.).
  4. Pliability, 12.7mm (1/2inch) radius bend, ASTMD146/D146M: No failures.

SPEC WRITER NOTE: Retain smoothsurfaced ply sheet below as the base ply sheet or second ply sheet of a two or three ply system.

  1. Membrane Ply Sheet: ASTMD6163/D6163M, Grade S, Type II or III, glassfiberreinforced, SBS/SEBSmodified asphalt sheet, or ASTMD6162/D6162M, Grade S, Type II or III, SBS/SEBSmodified asphalt sheet; smooth surfaced; with the following minimum properties:
  2. Tensile Strength at 23degreesC (73degreesF), minimum, ASTMD5147/D5147M: cross machine direction, 21kN/m (120lbf/in).
  3. Tear Strength at 23degreesC (73degreesF), minimum, ASTMD5147/D5147M: cross machine direction 890N (200lbf.).
  4. Elongation at 23degreesC (73degreesF), minimum, at 5 percent maximum load ASTMD5147/D5147M: cross machine direction, 40 percent.

SPEC WRITER NOTE: Retain smoothsurfaced sheet below as the cap sheet for a two or three ply system to receive a fieldapplied coating or aggregate surfacing. Certain aggregate surfacing systems meet Class A firetest requirements.

  1. Membrane Cap Sheet: Same as ply sheet.

SPEC WRITER NOTE: Retain granularsurfaced cap sheet below as part of a two or three ply system where Class A firetest roof surface is required.

  1. Membrane Cap Sheet: ASTMD6163/D6163M, Grade G, Type II,and as follows:
  2. Exterior FireTest Exposure, ASTME108: Class A.
  3. Tensile Strength at 23degreesC (73degreesF), minimum, cross machine direction, ASTMD5147/D5147M: 24kN/m (140lbf/in).
  4. Tear Strength at 23degreesC (73degreesF), minimum, cross machine direction, ASTMD5147/D5147M: 880N (200lbf.).
  5. Elongation at 23degreesC (73degreesF), minimum, cross machine direction, at 5 percent maximum load ASTMD5147/D5147M: 40 percent.
  6. Low Temperature Flex, maximum, ASTMD5147/D5147M: 31degreesC (25degreesF).

SPEC WRITER NOTE: Retain cap sheet below as part of a two or three ply system where Class A firetest roof surface is required and surface must meet solar reflectance and emittance requirements.

  1. Membrane Cap Sheet: ASTMD6163/D6163M, Grade G, Type II, glassfiberreinforced, SBSmodified asphalt sheet; granular surfaced with a factory applied, white, reflective, acrylic coating; CRRClisted and California Title 24 Energy Code compliant; and as follows:
  2. Exterior FireTest Exposure, ASTME108: Class A.
  3. Tensile Strength at 23degreesC (73degreesF), minimum, cross machine direction, ASTMD5147/D5147M: 12.2kN/m (70lbf/in).
  4. Tear Strength at 23degreesC (73degreesF), minimum, cross machine direction, ASTMD5147/D5147M: 440N (100lbf.).
  5. Elongation at 23degreesC (73degreesF), minimum, cross machine direction, ASTMD5147/D5147M: 7.5 percent.
  6. Low Temperature Flex, maximum, ASTMD5147/D5147M, 26degreesC (15degreesF).
  7. Reflectance, ASTMC1549: 71 percent.
  8. Thermal Emittance, ASTMC1371: 0.87.
  9. Solar Reflectance Index (SRI), ASTME1980: 87.

SPEC WRITER NOTE: Retain cap sheet below as part of a two or three ply high tensile strength system where Class A firetest roof surface is required and surface must meet solar reflectance and emittance requirements.

  1. Membrane Cap Sheet: ASTMD6162/D6162M, Grade G, Type III, composite polyester and glassfiberreinforced, SBS/SEBSmodified asphalt sheet; granular surfaced with a factory applied, white, reflective, acrylic coating; CRRClisted and California Title 24 Energy Code compliant; and as follows:
  2. Exterior FireTest Exposure, ASTME108: Class A.
  3. Tensile Strength at 23degreesC (73degreesF), minimum, cross machine direction, ASTMD5147/D5147M: 84kN/m (480lbf/in).
  4. Tear Strength at 23degreesC (73degreesF), minimum, cross machine direction, ASTMD5147/D5147M: 330N (750lbf.).
  5. Elongation at 23degreesC (73degreesF), minimum, cross machine direction, ASTMD5147/D5147M: 6 percent.
  6. Low Temperature Flex, maximum, ASTMD5147/D5147M, 26degreesC (15degreesF).
  7. Reflectance, ASTMC1549: 75 percent.
  8. Thermal Emittance, ASTMC1371: 0.86.
  9. Solar Reflectance Index (SRI), ASTME1980: 92.
  10. Base Flashing Backer Sheet: ASTMD4601/D4601M, Type II.
  11. Base Flashing Sheet: ASTMD6164/D6164M, Grade G, Type II, polyesterreinforced, SBSmodified asphalt sheet; with granular surface; Granule Color: White.

2.5ADHESIVE AND ASPHALT MATERIALS