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Certainteed Flintlastic GMS White SBS Modified Bitumen Cap Sheet, 1 Square Roll
Regular price $136.67Orders start at $399 — combine any items to reach the minimum. Learn more
Certainteed Flintlastic GMS White SBS Modified Bitumen Cap Sheet, 1 Square Roll
CertainTeed Flintlastic GMS is a white SBS modified bitumen cap sheet for low-slope roofing, supplied as a 1-square roll. It serves as the top ply in a multi-ply modified bitumen membrane system. Pair it with a compatible Flintlastic base or interply sheet for a complete low-slope assembly.
Key Features:
- SBS modified bitumen: An SBS-modified asphalt membrane formulated for low-slope roofing applications.
- White surfacing: White surface finish on the cap sheet.
- 1 square roll: Each roll covers approximately 1 roofing square as sold.
- Cap sheet role: Designed as the weather-exposed top layer of a multi-ply membrane system.
- Flintlastic system: Part of the CertainTeed Flintlastic modified bitumen product family.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | CertainTeed |
| Sell unit | 1 roll, 1 square |
| Product line | CertainTeed Flintlastic |
| Material | SBS modified bitumen asphalt membrane |
| Available colors | ['White'] |
| Coverage per unit | 1 square per roll (approx.) |
| Intended use | Low-slope roofing cap sheet in SBS modified bitumen assemblies |
Coverage & How Much You Need:
One roll covers approximately 1 roofing square (100 sq. ft.) before lapping and waste allowances. Size your order by roof area and add extra for end and side laps per the installation specification.
Fit and Compatibility:
Intended for use within the CertainTeed Flintlastic low-slope system as a cap sheet over compatible base and interply sheets. Verify membrane compatibility and system requirements before combining with other brands.
Frequently Asked Questions (FAQ):
Q: What is included with each order?
A: One white Flintlastic GMS cap sheet roll covering approximately 1 square.
Q: How many rolls do I need?
A: Plan one roll per square of roof area and add material for laps and waste.
Q: Is this a base sheet or cap sheet?
A: It is a cap sheet, the exposed top layer of a multi-ply SBS modified bitumen system.
Q: What color is the surface?
A: This item is supplied in white.
Q: Does it need a base sheet?
A: Yes, it is installed over compatible base and interply sheets sold separately.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
For low-slope SBS assemblies, match the cap sheet to the base and interply sheets in the same Flintlastic system so the modified asphalt chemistries are compatible. Confirm lap directions and side/end lap dimensions with the manufacturer's application instructions before ordering. White surfacing is commonly chosen where a lighter roof surface is desired.
Follow low-slope roof safety practices, including fall protection, when handling and installing membrane rolls.
Order CertainTeed Flintlastic GMS white cap sheet by the roll for your next low-slope multi-ply project.
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