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SOPREMA BITUTAK MB Smooth APP Modified Bitumen Cap Sheet Membrane, 150 mil, Black, 39.4 in. x 32 ft. 8 in. Roll
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SOPREMA BITUTAK MB Smooth APP Modified Bitumen Cap Sheet Membrane, 150 mil, Black, 39.4 in. x 32 ft. 8 in. Roll
BITUTAK MB Smooth is a 150 mil (3.8 mm) heat-welded APP modified bitumen cap sheet membrane from Soprema, reinforced with a heat-resistant non-woven polyester mat and finished with a sanded surface. It is film-backed for easy heat-welding installation and comes in black rolls measuring 39.4 in. x 32 ft. 8 in. One roll per order.
Key Features:
- APP formulation: Manufactured from a blend of APP (atactic polypropylene) polymers and select asphalts that enhances weathering capability and UV resistance.
- Polyester reinforcement: A heat-resistant non-woven polyester mat provides the strength and durability required in a roofing membrane.
- Heat-welded install: Film-backed for ease of heat-welding installation.
- 150 mil thickness: Heavy 150 mil (3.8 mm) cap sheet membrane for durable low-slope roofing.
- Coating-friendly: Adapts well to aluminum or other fine coatings applied over the surface.
- Smooth sanded finish: Sanded surface finish suitable for cap sheet applications.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Soprema |
| Sell unit | 1 roll, 39.4 in. x 32 ft. 8 in. |
| Product line | BITUTAK MB modified bitumen membranes |
| Available colors | Black |
| Available sizes | 39.4 in. x 32 ft. 8 in. |
| Material | APP (atactic polypropylene) modified bitumen with non-woven polyester reinforcement |
| Finish / texture | Smooth, sanded surface; film-backed |
| Thickness | 150 mils (3.8 mm) |
| Dimensions | 39.4 in. x 32 ft. 8 in. per roll |
| Installation method | Heat-welded |
| Coverage per unit | Approx. 107.6 sq ft per roll at full listed dimensions (less laps) |
| Intended use | Heat-welded cap sheet membrane for low-slope roofing |
Coverage & How Much You Need:
One roll measures 39.4 in. x 32 ft. 8 in., yielding about 107.6 sq ft at full dimensions, with usable coverage slightly less after side and end laps. Plan rolls by dividing roof area by roughly 100 sq ft of effective coverage and confirming the specified lap widths.
Fit and Compatibility:
Use as the cap sheet in a modified bitumen or BUR assembly, heat-welded over compatible base and interply sheets in the Soprema system. It accepts aluminum or other fine surface coatings applied separately. Base sheets, adhesives, and coatings are sold separately.
Frequently Asked Questions (FAQ):
Q: What does one roll include?
A: One roll of black BITUTAK MB Smooth membrane, 150 mil thick and 39.4 in. x 32 ft. 8 in. long.
Q: How much does one roll cover?
A: Full roll dimensions give about 107.6 sq ft; deduct side and end laps to size your order.
Q: How is it installed?
A: It is heat-welded; the film backing makes heat-welding installation easier.
Q: Can it be coated afterward?
A: Yes, the manufacturer states it adapts well to aluminum or other fine coatings.
Q: What reinforcement does it use?
A: A heat-resistant non-woven polyester mat provides the membrane's strength and durability.
Q: Why APP modified bitumen?
A: The APP polymer and asphalt blend enhances weathering capability and UV resistance compared with standard asphalt.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
A 150 mil APP cap sheet with polyester reinforcement is a solid choice for low-slope roofs needing torch-free, heat-welded installation and later reflective coating. Store rolls on end, off the ground, and acclimate them before welding for consistent seams. If you plan an aluminum or white coating, confirm coating compatibility with the sanded surface per the coating manufacturer.
Heat-welding equipment and hot bitumen present fire and burn hazards; follow fire-watch procedures and manufacturer installation safety guidance.
Order Soprema BITUTAK MB Smooth APP modified bitumen membrane for your next low-slope cap sheet job.
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