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Elevate SBS Premium Polybase Membrane 39.4 in. x 33 ft. 6 in., 1 Square Roll, Gray
Regular price $113.50Orders start at $399 — combine any items to reach the minimum. Learn more
Elevate SBS Premium Polybase Membrane 39.4 in. x 33 ft. 6 in., 1 Square Roll, Gray
Elevate SBS Premium Polybase is a strong, flexible base sheet for commercial modified bitumen roof systems, sold as one 39.4 in. x 33 ft. 6 in. roll covering 1 square. The heavy-weight fiberglass-reinforced polyester membrane meets or exceeds ASTM D6164, Type II, Grade S, and installs with hot asphalt or cold adhesive—experienced torch operators can also apply it. It is the solid foundation a long-performing roof system needs.
Key Features:
- Heavy-duty base: Strong, flexible, heavy-weight fiberglass-reinforced polyester base.
- ASTM rated: Meets or exceeds ASTM D6164, Type II, Grade S.
- Flexible application: Can be installed using hot asphalt or cold adhesive.
- Torch appliable: Has no burn-off film, but an experienced torch operator can successfully install the sheet.
- Full square roll: 39.4 in. x 33 ft. 6 in. roll covers 1 square.
- Gray surfacing: Supplied in Gray.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Elevate |
| Sell unit | 1 roll, 39.4 in. x 33 ft. 6 in. (1 square) |
| Product line | SBS Premium Polybase Membrane |
| Available colors | Gray (1 line item) |
| Available sizes | 39.4" x 33' 6", 1 Square/Roll |
| Material | SBS modified bitumen with heavy-weight fiberglass-reinforced polyester reinforcement |
| Color / finish | Gray |
| Dimensions | 39.4 in. x 33 ft. 6 in. per roll |
| Coverage per unit | 1 square (100 sq. ft.) per roll |
| Approvals | Meets or exceeds ASTM D6164, Type II, Grade S |
| Installation | Hot asphalt, cold adhesive, or torch by experienced operators |
| Intended use | Base sheet for commercial BUR and modified bitumen roof systems |
Coverage & How Much You Need:
One roll measures 39.4 in. x 33 ft. 6 in. and covers 1 square (100 sq. ft.) before laps. Plan base-sheet coverage allowing for end and side laps per your system specification.
Fit and Compatibility:
Designed as the base layer in Elevate SBS modified bitumen systems for new construction and re-roofing; pair with an Elevate SBS cap membrane such as SBS FR Torch. Install over a properly prepared, moisture-controlled insulation assembly.
Frequently Asked Questions (FAQ):
Q: What is included?
A: One 39.4 in. x 33 ft. 6 in. roll of SBS Premium Polybase membrane in Gray, covering 1 square.
Q: How is it installed?
A: With hot asphalt or cold adhesive; there is no burn-off film, but an experienced torch operator can successfully install the sheet.
Q: What standard does it meet?
A: It meets or exceeds ASTM D6164, Type II, Grade S.
Q: What pairs with this base sheet?
A: It is the base layer for Elevate SBS modified bitumen systems, topped with an SBS cap membrane.
Q: How many rolls do I need?
A: Divide your roof area by 100 sq. ft. per roll and add for laps and waste.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
A quality base sheet is the difference between a modified bitumen roof that lasts and one that fails early—make sure insulation is sound and moisture-controlled before mopping or adhering this membrane. Because the sheet has no burn-off film, only torch it if your crew is genuinely experienced; hot asphalt or cold adhesive are the more forgiving routes. Confirm system assembly details with the Elevate SBS specification for your project.
Hot asphalt, torching and cold adhesives all carry fire and burn hazards—use trained installers, proper PPE, and fire watch per job-site requirements.
Order the Elevate SBS Premium Polybase Membrane for a rock-solid base layer on your next modified bitumen roof.
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