GAF® GAFGLAS® BUILT-UP ROOFING SPECIFICATION

N-B-5-M/P6

PART 1  GENERAL

1.01  SUMMARY

A.  Section Includes

1.  Asphaltic modified bituminous roofing

2.  Roof Insulation

B.  Related Sections

1.  Section 06100: Rough Carpentry

2.  Section 07620: Sheet Metal Flashing and Trim

3.  Section 15430: Plumbing Specialties

1.02  REFERENCES

A.  American Society for Testing and Materials (ASTM) - Annual Book of ASTM Standards

1.  ASTM D-4601 - Standard Specification for Asphalt-Coated Glass Fiber Base Sheet Used in Roofing

2.  ASTM D-4897 - Standard Specification for Asphalt-Coated Glass-Fiber Venting Base Sheet Used in Roofing

3.  ASTM D-5147 - Standard Test Methods for Sampling and Testing Modified Bituminous Sheet Material

4.  ASTM D-3909 - Standard Specification for Asphalt Roll Roofing (Glass Felt) Surfaced With Mineral Granules

5.  ASTM D-6222 - Standard Specification for Atactic Polypropylene (APP) Modified Bituminous Sheet Materials Using Polyester Reinforcements

6.  ASTM D-6164 - Standard Specification for Styrene Butadiene Styrene (SBS) Modified Bituminous Sheet Materials Using Polyester Reinforcements

7.  ASTM D-6163 - Standard Specification for Styrene Butadiene Styrene (SBS) Modified Bituminous Sheet Materials Using Glass Fiber Reinforcements

8.  ASTM D-6298 - Standard Specification for Fiberglass Reinforced Styrene-Butadiene-Styrene (SBS) Modified Bituminous Sheets with a Factory Applied Metal Surface

9.  ASTM C-1549 - Standard Test Method for Determination of Solar Reflectance Near Ambient Temperature Using a Portable Solar Reflectometer

10. ASTM C-1371 - Standard Test Method for Determination of Emittance of Materials Near Room Temperature Using Portable Emissometers

11. ASTM E 903 – Standard Test Method for Solar Absorptance, Reflectance, and Transmission of Materials Using Integrating Spheres ***ENERGYSTAR rated only***

B.  Sheet Metal and Air Conditioning Contractors National Association, Inc. (SMACNA) - Architectural Sheet Metal Manual

C.  National Roofing Contractors Association (NRCA)

D.  American Society of Civil Engineers (ASCE)

E.  U.S. Green Building Council (USGBC)

1.  Leadership in Energy and Environmental Design (LEED)

F.  Factory Mutual (FM Global) - Approval Guide

G.  Underwriters Laboratories (UL) - Roofing Systems and Materials Guide

H.  California Title 24 Energy Efficient Standards

I.  ENERGY STAR

J.  Cool Roof Rating Council (CRRC)

K.  Miami Dade County

1.03  DEFINITIONS

A.  Roofing Terminology: Refer to ASTM D1079 and the glossary of the National Roofing Contractors Association (NRCA) Roofing and Waterproofing Manual for definitions of roofing terms related to this section.

1.04  LEED CERTIFICATION

A.  Provide a roofing system that will achieve or aid in the qualification of points satisfying

1.  Sustainable Site credit 7.2 - Heat Island Effect - Roof

2.  Materials & Resource credit 3 - Material Reuse

3.  Materials & Resource credit 4 - Recycled Content.

4.  Materials & Resource credit 5 - Local and Regional Materials.

1.05  SUBMITTALS

A.  Product Data: Provide product data sheets for each type of product indicated in this section.

B.  Shop Drawings: Provide manufacturers standard details and approved shop drawings for the roof system specified.

C.  Samples: Provide samples of insulations, fasteners, membrane materials and accessories for verification of quality.

D.  Certificates: Installer shall provide written documentation from the manufacturer of their authorization to install the roof system, and eligibility to obtain the warranty specified in this section.

E.  L.E.E.D. submittal: Coordinate with Section 01115 - Green Building Requirements, for LEED certification submittal forms and certification templates.

1.06  QUALITY ASSURANCE

A.  Manufacturer’s Qualifications: GAF® shall provide a roofing system that meets or exceeds all criteria listed in this section.

B.  Installer’s Qualifications:

1.  Installer shall be classified as a Master or Master SelectÔ contractor as defined and certified by GAF®.

2.  Installer shall be classified as a Master SelectÔ contractor as defined and certified by GAF®.

3.  Installer shall be classified as a Master contractor as defined and certified by GAF®.

4.  Installer shall be classified as an Authorized contractor as defined and certified by GAF®.

C.  Source Limitations: All components listed in this section shall be provided by a single manufacturer or approved by the primary roofing manufacturer.

D.  Final Inspection ***ONLY DIAMOND PLEDGE***

Manufacturer’s representative shall provide a comprehensive final inspection after completion of the roof system. All application errors must be addressed and final punch list completed.

1.07  PRE-INSTALLATION CONFERENCE

A.  Prior to scheduled commencement of the roofing installation and associated work, conduct a meeting at the project site with the installer, architect, owner, GAF® representative and any other persons directly involved with the performance of the work. The installer shall record conference discussions to include decisions and agreements reached (or disagreements), and furnish copies of recorded discussions to each attending party. The main purpose of this meeting is to review foreseeable methods and procedures related to roofing work.

1.08  PERFORMANCE REQUIREMENTS

A.  Provide an installed roofing membrane and base flashing system that does not permit the passage of water, and will withstand the design pressures calculated in accordance with the most current revision of ASCE 7.

B.  GAF® shall provide all primary roofing materials that are physically and chemically compatible when installed in accordance with manufacturers current application requirements.

1.09  REGULATORY REQUIREMENTS

A.  All work shall be performed in a safe, professional manner, conforming to all federal, state and local codes.

***CHOOSE FIRE RATING IF REQUIRED***

B.  Exterior Fire Test Exposure: Provide a roofing system that will achieve an Underwriters Laboratories rating for roof slopes indicated.

1.  UL Class A

2.  UL Class B

3.  UL Class C

***CHOOSE FM RATING IF REQUIRED***

***Consult GAF® Contractor services for Ratings above FM 1-90***

C.  Windstorm Classification: Provide a roofing system which will achieve a Factory Mutual wind uplift rating, as listed in the current FM Approval Guide.

1.  1-60

2.  1-75

3.  1-90

4.  1-90

1.10  DELIVERY, STORAGE AND HANDLING

A.  Deliver all roofing materials to the site in original containers, with factory seals intact. All products are to carry either a GAF® or BMCA ® label.

B.  Store roll goods on end on pallets in a clean, dry, protected area. Take care to prevent damage to roll ends or edges. Do not double stack modified bitumen products.

C.  Materials shall be stored above 55°F (12.6°C) a minimum of 24 hours prior to application.

D.  Store all pail goods in their original undamaged containers in a clean, dry location within their specified temperature range. Reference data sheets for product storage requirements.

E.  Do not expose materials to moisture in any form before, during or after delivery to the site. Reject delivery of materials that show evidence of contact with moisture.

F.  Remove manufacturer supplied plastic covers from materials provided with such. Use “breathable” type covers such as canvas tarpaulins to allow venting and protection from weather and moisture. Cover and protect materials at the end of each work day. Do not remove any protective tarpaulins until immediately before the material will be installed.

1.11  PROJECT CONDITIONS

A.  Weather

1.  Proceed with roofing only when existing and forecasted weather conditions permit.

2.  Ambient temperatures must be above 45°F (7.2°C) when applying hot asphalt or water based adhesives.

1.12  WARRANTY/GUARANTEE

***CHOOSE ONE WARRANTY/GUARANTEE***

A.  Provide Manufacturers standard WeatherStopper® Diamond PledgeÔ Guarantee with single source coverage* and no monetary limitation, where the manufacturer agrees to repair or replace components in the roofing system, which cause a leak due to a failure in materials or workmanship.

1.  Duration: Five(5), Ten (10),Twelve (12),Fifteen (15), Twenty (20) Twenty-Five (25) ***CHOOSE ONE*** years from the date of completion.

B.  Provide Manufacturers standard WeatherStopper® Diamond PledgeÔ Guarantee with single source Edge-to-Edge coverage* and no monetary limitation, where the manufacturer agrees to repair or replace components in the roofing system and pre-approved metal edge details, which cause a leak due to a failure in materials or workmanship.

1.  Duration: Five(5), Ten (10),Twelve (12),Fifteen (15), Twenty (20) Twenty-Five (25) ***CHOOSE ONE*** years from the date of completion.

C.  Provide Manufacturers standard WeatherStopper® Diamond PledgeÔ Guarantee with the WELL ROOFÔ Advantage. Provides single source coverage* and no monetary limitation, where the manufacturer agrees to repair or replace components in the roofing system, which cause a leak due to a failure in materials or workmanship.

1.  Duration: Five(5), Ten (10),Twelve (12),Fifteen (15), Twenty (20) Twenty-Five (25) ***CHOOSE ONE*** years from the date of completion.

2.  Extension: GAF® also guarantees to the original or first subsequent owner that coverage shall be extended by 25% of the original guarantee length, provided that the roof in inspected and maintained in accordance with the MAINTAINENCE section of this specification.

D.  Provide Manufacturers standard WeatherStopper® System PledgeÔ Guarantee with single source coverage* and a monetary limitation of one (1) dollar per square foot, where the manufacturer agrees to repair or replace components in the roof system, which cause a leak due to failure in materials or workmanship.

1.  Duration: Five (5), Ten (10),Twelve (12),Fifteen (15), Twenty (20) ***CHOOSE ONE*** years from the date of completion.

E.  Provide GAF®® WeatherStopper® Integrated Roofing System Guarantee where the manufacturer agrees to repair or replace the portion of the roofing materials, which have resulted in a leak due to a manufacturing defect or defects caused by ordinary wear and tear.

1.  Duration: Five(5), Ten (10),Twelve (12),Fifteen (15), Twenty (20) ***CHOOSE ONE*** years from the date of completion.

F.  Provide Manufacturers standard prorated material warranty where the manufacturer agrees to repair or replace to portion of the roofing materials that have resulted in a leak due to a manufacturing defect or defects caused by ordinary wear and tear

1.  Duration: Ten (10) years

*Materials and workmanship of listed products within this section when installed in accordance with current GAF® application and specification requirements. Contact GAF® Contractor Services for the full terms and conditions of the guarantee.

PART 2  PRODUCTS

2.01  ACCEPTABLE MANUFACTURER

A.  GAF - 1361 Alps Road, Wayne, NJ 07470

2.02  INSULATION ACCESSORIES

A.  Cant Strip: Factory fabricated rigid perlite strip cut at angles to provide a true 45° Angle between horizontal and vertical surfaces, EnergyGuardÔ Perlite Cant Strip, by GAF®

B.  Tapered Edge Strip: Factory fabricated rigid perlite strip cut at angles to provide a smooth transition between differences in elevation. EnergyGuardÔ Tapered Edge Strip, by GAF®

2.03  BASE SHEETS

***CHOOSE APPROPRIATE PRODUCTS***

A.  Dry Sheathing Paper: Red Rosin Paper, unsaturated.

B.  Moisture resistant and flame retardant inorganic base sheet, asphalt coated with mineral granules: Conforms to or exceeds requirements of ASTM D 3672 Type II and ASTM D 4897, Type II and UL Type G2 BUR. Each roll contains one and one-quarter squares of material, approximately 39.4” x 40’ 8” (1 m x 12.4 m); GAFGLASâ STRATAVENTâ EliminatorÔ Nailable base sheet.

C.  Moisture resistant and flame retardant inorganic base sheet, asphalt coated with mineral granules, has 1/2”(inch) perforations, 3 in a row with groups spaced 3 inches apart on center: Conforms to or exceeds requirements of ASTM D 3672 Type II and ASTM D 4897, Type II and UL Type G2 BUR. Each roll contains one and one-quarter squares of material, approximately 39.4” x 40’ 8” (1 m x 12.4 m); GAFGLASâ STRATAVENTâ EliminatorÔ Perforated base sheet.

D.  Glass fiber asphalt saturated ply sheet, strong and lightweight. Conforms to or exceeds requirements of ASTM D 2178 Type IV and UL Type G1 BUR Each roll contains five (5) squares (530 sq. ft.) of material, approximately 39.4” x 161.8’ (1.0m x 49.3m), GAFGLASâ Ply 4.

E.  Premium glass fiber asphalt saturated ply sheet with flexible design: Conforms to or exceeds requirements of ASTM D 2178 Type VI and UL Type G1 BUR. Each roll contains five (5) squares (530 sq. ft.) of material, approximately 39.4” x 161.8’ (1.0m x 49.3m), GAFGLASâ FlexPlyÔ 6.

F.  Heavyweight asphalt coated glass fiber base sheet: Conforms to or exceeds requirements of ASTM D 4601, Type II, UL Type G2 BUR, and Federal Spec SS-R-620B Type II. Each roll contains three (3) squares (320 sq. ft.) of material, approximately 39.4" x 97.5’ (1 m x 29.7 m); GAFGLASâ #75 base sheet.

G.  High performance, asphalt coated, glass-reinforced base sheet: Conforms to or exceeds requirements of ASTM D 4601, Type II, UL Type G2 BUR, and Federal Spec SS-R-620B Type II. Each roll contains two (2) squares (214 sq. ft.) of material, approximately 39.4" x 65.2’ (1 m x 19.9 m); 75 lbs. GAFGLASâ #80 ULTIMAÔ base sheet

2.04  MEMBRANE MATERIALS

A.  Premium glass fiber asphalt saturated ply sheet with flexible design: Conforms to or exceeds requirements of ASTM D 2178 Type VI and UL Type G1 BUR. Each roll contains five (5) squares (530 sq. ft.) of material, approximately 39.4” x 161.8’ (1.0m x 49.3m), GAFGLASâ FlexPlyÔ 6.

B.  Asphalt coated mineral surfaced cap sheet for use as the finish ply in the application of hot applied built-up roofs. Color to be selected by owner or architect from standard GAF® colors. Complies with ASTM D 3909. Each roll contains one square of material, approximately 39.4” x 32.6’ (1 m x 9.9 m); GAFGLASâ Mineral Surfaced Cap Sheet.

1. Color: to be selected by owner or architect from standard GAF® selections.

2.05  FLASHING MATERIALS ***CHOOSE APPROPRIATE PRODUCTS***

A.  Heavyweight asphalt coated glass fiber base sheet: Conforms to or exceeds requirements of ASTM D 4601, Type II, UL Type G2 BUR, and Federal Spec SS-R-620B Type II. Each roll contains three (3) squares (320 sq. ft.) of material, approximately 39.4" x 97.5’ (1 m x 29.7 m); GAFGLASâ #75 base sheet.

B.  High performance, asphalt coated, glass-reinforced base sheet: Conforms to or exceeds requirements of ASTM D 4601, Type II, UL Type G2 BUR, and Federal Spec SS-R-620B Type II. Each roll contains two (2) squares (214 sq. ft.) of material, approximately 39.4" x 65.2’ (1 m x 19.9 m); GAFGLASâ #80 ULTIMAÔ base sheet

C.  Glass fiber asphalt saturated ply sheet, strong and lightweight. Conforms to or exceeds requirements of ASTM D 2178 Type IV and UL Type G1 BUR Each roll contains five (5) squares (530 sq. ft.) of material, approximately 39.4” x 161.8’ (1.0m x 49.3m), GAFGLASâ Ply 4.

D.  Premium glass fiber asphalt saturated ply sheet with flexible design: Conforms to or exceeds requirements of ASTM D 2178 Type VI and UL Type G1 BUR. Each roll contains five (5) squares (530 sq. ft.) of material, approximately 39.4” x 161.8’ (1.0m x 49.3m), GAFGLASâ FlexPlyÔ 6.

E.  ENERGY STAR listed, coated extra fine mineral granule surfaced built up roofing membrane containing a core of non-woven polyester mat coated with fire retardant APP polymer modified asphalt designed for heat weld application. Conforms to or exceeds requirements of ASTM D3909. Each roll contains one square of material, approximately 39.6” x 32.6’ (1 m x 9.9 m), GAFGLASâ EnergyCap BUR Mineral Surfaced Cap Sheet