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SOPREMA BITUTAK MB APP Modified Bitumen Roofing Membrane, 3.8 mm Mineral Surfaced Roll, 39.4 in. x 32 ft. 8 in., Black
Regular price $89.10Orders start at $399 — combine any items to reach the minimum. Learn more
SOPREMA BITUTAK MB APP Modified Bitumen Roofing Membrane, 3.8 mm Mineral Surfaced Roll, 39.4 in. x 32 ft. 8 in., Black
Soprema BITUTAK MB is a 3.8 mm (150 mil) APP modified bitumen roofing membrane with a mineral surface, supplied as one black roll measuring 39.4 in. x 32 ft. 8 in. It is designed for approved multi-ply membrane and flashing assemblies and installs by heat welding, backed with a plastic burn-off film for ease of torch application.
Key Features:
- APP modified asphalt: BITUTAK MB is a 3.8 mm (150 mil) APP (Atactic Polypropylene) modified bitumen membrane engineered for long-term durability.
- Weathering performance: The exclusive APP polymer and asphalt formulation delivers excellent weathering characteristics.
- Polyester reinforcement: A heat-resistant, non-woven polyester mat adds strength and puncture resistance to the membrane.
- Burn-off back film: A plastic burn-off film on the backing simplifies heat welding installation.
- Multi-ply and flashing use: Approved for use in multi-ply membrane and flashing assemblies.
- Value waterproofing: Delivers exceptional waterproofing performance at a strong value for commercial roofing projects.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Soprema |
| Sell unit | 1 roll, 39.4 in. x 32 ft. 8 in. |
| Product line | BITUTAK MB |
| Material | APP (Atactic Polypropylene) modified bitumen |
| Color / finish | Black mineral surface |
| Available colors | Black |
| Available sizes | 39.4 in. x 32 ft. 8 in. roll |
| Dimensions | 39.4 in. x 32 ft. 8 in. per roll |
| Thickness | 3.8 mm (150 mil) |
| Reinforcement | Heat-resistant, non-woven polyester mat |
| Backing | Plastic burn-off film for heat welding |
| Intended use | Approved multi-ply membrane and flashing assemblies |
| Installation | Heat welding |
Coverage & How Much You Need:
Each roll measures 39.4 in. wide by 32 ft. 8 in. long, covering approximately 108 sq. ft. before laps; size your job by roll count and allow for side and end laps per the approved assembly details.
Fit and Compatibility:
BITUTAK MB is intended for approved multi-ply membrane and flashing assemblies. When heat welding over combustible substrates such as wood, plywood or OSB, a protective coverboard must be installed before application; primers, base sheets and coverboard are specified per the project assembly and sold separately.
Frequently Asked Questions (FAQ):
Q: What is included in one sell unit?
A: One roll of BITUTAK MB in black, 39.4 in. x 32 ft. 8 in., with a plastic burn-off film backing.
Q: How thick is this membrane?
A: It is a 3.8 mm (150 mil) APP modified bitumen membrane reinforced with a non-woven polyester mat.
Q: How is it installed?
A: It is installed by heat welding; the plastic burn-off film on the backing is designed to make torch application easier.
Q: Can it be torched directly onto a wood deck?
A: No. When heat welding on combustible substrates such as wood, plywood or OSB, a protective coverboard must be installed first, and combustible material must be kept away from open flame.
Q: What is it used for?
A: It is approved for multi-ply membrane and flashing assemblies in commercial low-slope roofing.
Q: Does it resist punctures?
A: Yes, the heat-resistant non-woven polyester reinforcement provides added strength and puncture resistance.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
BITUTAK MB is a value-oriented APP cap ply suited to heat-welded multi-ply and flashing work. Confirm the approved assembly before ordering, and always specify a coverboard over combustible decks before any torch work. Its polyester reinforcement is a plus where foot traffic or puncture risk is a concern; select a heavier assembly if long-term exposure demands it.
Heat welding requires open flame: keep combustible materials away and install a protective coverboard before applying over wood, plywood or OSB substrates.
Order Soprema BITUTAK MB 3.8 mm APP modified bitumen rolls for your next multi-ply or flashing assembly.
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