GAF Materials Corporation
1361 Alps Road
Wayne, NJ 07470
Tel: (800) 766-3411
Web site: http://www.gaf.com

RUBEROID^®
SBS Heat-Weld™
25

Description
RUBEROID SBS HEAT-WELD 25 membrane is a tough, resilient modified bitumen membrane manufactured to stringent GAF Materials Corporation specifications. Its core is a strong, resilient non-woven glass mat that is coated with flexible, polymer modified asphalt.

Uses
RUBEROID SBS HEAT-WELD 25 is designed for new roofing and recovering applications as well as in the construction of flashings. RUBEROID SBS HEAT-WELD 25 is an ideal base or interply roofing membrane in modified bitumen systems.

Advantages
• Guarantees are available for up to 20 years.
• Cost effective - the installed cost of SBS HEAT-WELD systems is less than most single-ply systems on the market today.
• Lightweight - installed roof designs weigh less than two pounds per square foot.
• Durable - combines the strength of fiberglass reinforcement with the elongation characteristics of SBS modified asphalt.
• RUBEROID SBS HEAT-WELD 25 membrane is backed by GAF Materials Corporation, a company with over 100 years in the roofing business.
• Available as a smooth surface.

Applicable Standards
• UL Approved for use in the construction of Class A, B, or C roof systems.*
• ASTM D-6163, Type I, Grade S

*See Ruberoid Application and Specification Manual or UL Directory for specific approval.

Product Data (Approximate)
Roll Size......................1.5 square  (163 gross sq. ft.) (15.2m²)
Product Thickness.......0.098" (2.5mm)
Roll Weight.....................90lbs (41kg)

Typical Physical Properties

Property  Tensile Strength @ 0F (nom.), lbf/in Elongation @0F (nom.), %  Low Temperature Flexibility (max.), F Tear Strength (nom.), lbf  Dimensional Stability, %

Test Method  ASTM D5147 ASTM D5147  ASTM D5147 ASTM D5147 ASTM D5147

Values 71 4 -22 50 <0.5