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Johns Manville GlasKap CR White Glass-Reinforced BUR Cap Sheet, 1 Square Roll
Regular price $131.25Orders start at $399 — combine any items to reach the minimum. Learn more
Johns Manville GlasKap CR White Glass-Reinforced BUR Cap Sheet, 1 Square Roll
Johns Manville GlasKap CR is a white glass-reinforced built-up roofing (BUR) cap sheet available in one-square rolls. It is the surfacing layer of BUR and multi-ply assemblies and pairs with compatible JM base and interply sheets.
Key Features:
- Glass reinforcement: CR glass mat reinforcement stabilizes the membrane.
- White surfacing: White finish provides a light-colored weathering cap.
- BUR cap layer: Designed as the top sheet of BUR and multi-ply assemblies.
- One square rolls: Each roll covers one square for simple estimating.
- Two listings: Offered in two white roll versions rated at one square per roll.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Johns Manville |
| Sell unit | 1 roll |
| Product line | Johns Manville GlasKap CR Cap Sheet |
| Membrane type | BUR glass cap sheet |
| Available colors | White |
| Coverage per unit | 1 square per roll |
| Available sizes | 1 square per roll |
Coverage & How Much You Need:
One roll covers one square (100 sq ft); add allowance for side and end laps when estimating rolls.
Fit and Compatibility:
Used as the cap layer over Johns Manville base and interply sheets in BUR or multi-ply assemblies. Base sheets, ply felts, adhesives and fasteners are sold separately.
Frequently Asked Questions (FAQ):
Q: How much does one roll cover?
A: One square, about 100 sq ft, before laps and waste.
Q: What does CR mean?
A: It indicates glass mat reinforcement in the sheet; detailed construction data is not stated in the listing.
Q: Is it white?
A: Yes, the listed rolls are White.
Q: Can it stand alone?
A: No, it is a cap sheet and should be installed over base and interply layers.
Q: Are there two versions?
A: Two GlasKap CR white one-square roll items are listed on this page.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
GlasKap CR is a go-to white cap for BUR and multi-ply roofs where a glass-reinforced sheet is specified. Match the roll version to the system specification and confirm laps, attachment and flashing details before ordering. Because coverage is one square per roll, larger roofs need careful roll counts plus 10 percent for laps.
Follow the manufacturer's installation requirements and use fall protection when working on low-slope roofs.
Order Johns Manville GlasKap CR white cap sheet rolls for your BUR or multi-ply roof.
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