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Elevate SBS Modified Bitumen Base Sheet, Black, 39.4 in. x 50 ft. Roll
Regular price $82.00Orders start at $399 — combine any items to reach the minimum. Learn more
Elevate SBS Modified Bitumen Base Sheet, Black, 39.4 in. x 50 ft. Roll
Elevate SBS Base is an SBS-modified bitumen base-ply membrane blending SBS rubber polymer with high-quality asphalt, reinforced with a 1.8 lb/100 sq ft non-woven fiberglass mat. Each roll measures 39.4 in. x 50 ft. and covers about 5 squares. It is designed specifically as a base layer in modified bitumen roof systems.
Key Features:
- SBS rubber blend: A blend of SBS rubber polymer and high-quality asphalt increases waterproofing, elongation, elasticity and flexibility.
- Fiberglass reinforcement: A 1.8 lb/100 sq ft (90 g/sq m) strong non-woven fiberglass mat provides strength and stability.
- Moisture resistant: The inorganic fiberglass reinforcement resists moisture absorption.
- Base-ply design: Designed specifically as a base layer for modified bitumen membrane systems.
- Cold or hot applied: Acceptable for cold adhesive or hot asphalt application over approved substrates.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Elevate |
| Sell unit | 1 roll, 39.4 in. x 50 ft. (approx. 5 squares) |
| Product line | Elevate SBS |
| Material | SBS-modified bitumen with non-woven fiberglass mat (1.8 lb/100 sq ft / 90 g/sq m) |
| Color / finish | Black |
| Dimensions | 39.4 in. x 50 ft. |
| Coverage per unit | Approx. 5 squares per roll |
| Application | Cold adhesive or hot asphalt |
| Cold adhesive substrates | Structural concrete (clean, dry, cured, ASTM D-41 primed); existing smooth-surface BUR or SBS modified bitumen (clean, smooth, ASTM D-41 primed) |
| Hot asphalt substrates | Structural concrete (clean, dry, cured, ASTM D-41 primed); existing smooth-surface BUR or SBS modified bitumen (clean, smooth, ASTM D-41 primed) |
| Intended use | Base layer for modified bitumen roofing systems |
Coverage & How Much You Need:
Each 39.4 in. x 50 ft. roll covers approximately 5 roofing squares before lap deductions. Size the job by roof area and subtract side and end laps required by the specified system details.
Fit and Compatibility:
Elevate SBS Base is designed as the base layer in Elevate modified bitumen systems and is applied over primed structural concrete or existing smooth-surface BUR or SBS membranes using cold adhesive or hot asphalt. Cap ply membranes and primers are sold separately per the system specification.
Frequently Asked Questions (FAQ):
Q: What is included with one order?
A: One roll of Elevate SBS Base Sheet, black, measuring 39.4 in. x 50 ft.
Q: How much does one roll cover?
A: A roll covers approximately 5 squares; deduct for required side and end laps when estimating.
Q: What substrates can it be applied to?
A: Structural concrete or existing smooth-surface BUR or SBS modified bitumen, clean and primed with ASTM D-41 primer, using cold adhesive or hot asphalt.
Q: What reinforces the membrane?
A: A 1.8 lb/100 sq ft non-woven fiberglass mat that resists moisture absorption and adds strength and stability.
Q: Why SBS modification?
A: The SBS rubber polymer blend increases natural waterproofing properties and adds elongation, elasticity and flexibility.
Q: Is this a cap sheet?
A: No, SBS Base is designed specifically as a base layer in a modified bitumen system.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
SBS Base is the foundation ply of an Elevate modified bitumen assembly, and its fiberglass mat keeps the sheet dimensionally stable while the SBS blend adds flexibility at low temperatures. Priming with ASTM D-41 primer and ensuring substrates are clean, dry and smooth is essential for both cold and hot application. Pair it with the specified Elevate interply and cap sheets to maintain system integrity.
Hot asphalt application presents serious burn and fire hazards; use proper PPE and follow the manufacturer's application instructions and site safety requirements.
Order Elevate SBS Base Sheet rolls for your modified bitumen base ply today.
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