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Polyglass Polybond G APP Modified Bitumen Cap Sheet, Granulated, 39-3/8 in. x 32 ft. 10 in.
Regular price $115.00Orders start at $399 — combine any items to reach the minimum. Learn more
Polyglass Polybond G APP Modified Bitumen Cap Sheet, Granulated, 39-3/8 in. x 32 ft. 10 in.
Polybond G is a polyester-reinforced APP modified bitumen roofing membrane designed for heat-welded applications. One roll is 39-3/8 in. x 32 ft. 10 in. with a granulated top surface and film bottom for torch application. It serves as a durable cap sheet in multi-layer low-slope assemblies and can also be used as a flashing membrane.
Key Features:
- APP Modified Bitumen: Constructed with premium atactic polypropylene resins for exceptional durability.
- Polyester Reinforcement: Superior polyester reinforcing provides strength and long-term weathering performance.
- Granulated Surface: Granular top surface is available in multiple color options including White and Buff.
- Torch Applied: Film bottom surface is designed for torch-applied heat welding.
- Puncture Resistant: Puncture and tear-resistant construction stands up to rooftop conditions.
- Exceeds ASTM: Exceeds all minimum ASTM standards for tensile strength, puncture resistance and flexibility.
- Dual Use: Works as a cap sheet in multi-layer low-slope assemblies and as a flashing membrane per applicable specifications.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Polyglass |
| Sell unit | 1 roll, 39-3/8 in. x 32 ft. 10 in. |
| Product line | Polybond G |
| Available colors | White, Buff |
| Available sizes | 39-3/8 in. x 32 ft. 10 in. |
| Material | APP modified bitumen with polyester reinforcement |
| Finish / texture | Granulated top surface; film bottom surface |
| Dimensions | 39-3/8 in. x 32 ft. 10 in. |
| Installation method | Torch applied (heat welded) |
| Intended use | Cap sheet in multi-layer low-slope assemblies; flashing membrane in applicable specifications |
| Approvals | Exceeds minimum ASTM standards for tensile strength, puncture-resistance and flexibility |
| Assembly | Rolled membrane, no assembly required |
Coverage & How Much You Need:
Each roll is 39-3/8 in. x 32 ft. 10 in., roughly one roofing square before laps. Order one roll per square plus extra for side and end laps and flashing details.
Fit and Compatibility:
Designed for use as a cap sheet in multi-layer low-slope assemblies, installed over approved base sheets, and suitable as a flashing membrane in all applicable Polyglass specifications. Base sheets and torching equipment are sold separately.
Frequently Asked Questions (FAQ):
Q: What colors are available?
A: The granulated surface is available in several colors; this line includes White and Buff.
Q: How is it installed?
A: It is heat welded: the film bottom surface is designed for torch application.
Q: What size is each roll?
A: Each roll measures 39-3/8 in. x 32 ft. 10 in.
Q: Where is it used?
A: It is designed as a cap sheet in multi-layer low-slope assemblies and can be used as a flashing membrane per recommended practices.
Q: How durable is it?
A: It is puncture and tear resistant and exceeds minimum ASTM standards for tensile strength, puncture resistance and flexibility.
Q: Is a base sheet included?
A: No, the cap sheet is sold by the roll; base sheets are purchased separately.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
Choose Polybond G when you want a torch-applied APP cap sheet with good weathering life; White is a common choice where reflectivity is desired, while Buff suits earth-toned projects. Torch laps evenly with visible bleed-out at seams, and order extra rolls for flashing details since the same membrane can be used as flashing per spec. Always install over an approved base sheet in a multi-layer assembly.
Torch application carries fire and burn risk; follow Polyglass installation guidelines, maintain fire watch, and confirm torch use is permitted by local codes.
Order Polyglass Polybond G APP modified bitumen cap sheet today for a durable, heat-welded low-slope roof finish.
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