
GAF RUBEROID HW Smooth Polymer-Modified Asphalt Membrane, 39.625 in. x 32.6 ft. Roll, Black
Regular price $114.50Orders start at $399 — combine any items to reach the minimum. Learn more
GAF RUBEROID HW Smooth Polymer-Modified Asphalt Membrane, 39.625 in. x 32.6 ft. Roll, Black
GAF RUBEROID HW Smooth is a strong, resilient modified bitumen membrane built on a non-woven polyester mat coated with flexible, polymer-modified asphalt, finished smooth and black. Each roll measures 39.625 in. x 32.6 ft. and is sold by the roll. It pairs with RUBEROID system components for a cost-effective multi-ply roof with guarantees available up to 20 years.
Key Features:
- Resilient polyester core: The non-woven polyester mat resists splits and tears thanks to pliability and elongation characteristics.
- Flexible modified asphalt: Specially formulated, flexible polymer-modified asphalt coating gives lasting performance.
- Lightweight design: Installed roof designs weigh less than 2 pounds per square foot.
- Cost-effective: Installed cost is less than most single-ply systems on the market.
- Up to 20-year guarantees: System guarantees are available for up to 20 years.
- Smooth surface: Smooth black finish suits multi-ply assemblies.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | GAF |
| Sell unit | 1 roll, 39.625 in. x 32.6 ft. |
| Product line | GAF RUBEROID |
| Available colors | Black |
| Available sizes | 39.625 in. x 32.6 ft. roll |
| Material | Polymer-modified asphalt on a non-woven polyester mat |
| Color / finish | Black, smooth |
| Dimensions | 39.625" x 32.6' |
| Warranty | System guarantees available for up to 20 years |
| Intended use | Multi-ply / modified bitumen commercial roofing membrane |
| Installed weight | Less than 2 lb per sq ft for installed roof designs |
Coverage & How Much You Need:
Each 39.625 in. x 32.6 ft. roll provides roughly 108 sq. ft. of membrane; allow for laps and waste when sizing a multi-ply job.
Fit and Compatibility:
Part of the GAF RUBEROID modified bitumen roofing system; system guarantees up to 20 years are available when installed as a system. Related RUBEROID membranes, base sheets and accessories are sold separately.
Frequently Asked Questions (FAQ):
Q: What is the membrane construction?
A: A strong, resilient non-woven polyester mat coated with flexible, polymer-modified asphalt with a smooth finish.
Q: How large is a roll?
A: Each roll is 39.625 in. wide by 32.6 ft. long, in black.
Q: Is a guarantee available?
A: System guarantees are available for up to 20 years when installed as a system.
Q: How heavy is the installed roof?
A: Installed roof designs weigh less than 2 pounds per square foot.
Q: How does the cost compare?
A: The installed cost is less than most single-ply systems on the market today.
Q: How much area does a roll cover?
A: About 108 sq. ft. per roll before laps and waste.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
RUBEROID HW Smooth is a value-driven choice for multi-ply assemblies where a smooth polyester-reinforced modified sheet is specified; its pliability helps on roofs prone to splits and tears. Confirm system guarantee eligibility with approved GAF components and application method. At under 2 lb/sq ft installed, it suits structures with limited load capacity.
Hot-applied or torch-applied modified bitumen installation requires trained crews, fire watch and appropriate personal protective equipment.
Order GAF RUBEROID HW Smooth membrane for a durable, economical multi-ply roofing system.
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