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SOPREMA RESISTO Redzone 25 Self-Adhesive Air & Vapor Barrier Membrane, 4" or 6" x 75 ft
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SOPREMA RESISTO Redzone 25 Self-Adhesive Air & Vapor Barrier Membrane, 4" or 6" x 75 ft
SOPREMA RESISTO Redzone 25 is a self-adhesive air and vapor barrier membrane made of 25 mil elastomeric bitumen with a trilaminate woven polyethylene facer, used around door and window frames. It provides a continuous barrier that eliminates drafts and water leaks. Sold in 4 in. x 75 ft or 6 in. x 75 ft rolls in red.
Key Features:
- Self-adhesive: Self-adheres around door and window frames without separate adhesives.
- 25 mil thickness: Composed of elastomeric bitumen at 25 mils with consistent thickness.
- Durable facer: Trilaminate woven polyethylene top surface.
- Continuous barrier: Provides a continuous air/vapor barrier at openings.
- Draft & leak control: Eliminates drafts and water leaks around frames.
- Two widths: Offered in 4 in. x 75 ft and 6 in. x 75 ft rolls.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | SOPREMA |
| Sell unit | 1 roll, 4" or 6" x 75 ft |
| Product line | RESISTO Redzone 25 |
| Available colors | Red |
| Available sizes | .025 4" x 75', .025 6" x 75' |
| Material | Elastomeric bitumen with trilaminate woven polyethylene |
| Thickness | 25 mils |
| Coverage per unit | 75 linear ft per roll (25 sq ft at 4 in.; 37.5 sq ft at 6 in.) |
| Finish / texture | Red |
| Intended use | Air/vapor barrier around door and window frames |
| Category | Commercial Roofing > Membranes > Vapor Barriers |
Coverage & How Much You Need:
Each 75 ft roll covers 25 sq ft at 4 in. width or 37.5 sq ft at 6 in. width. Measure door and window frame perimeters and choose the width that gives the required lap onto the wall air barrier.
Fit and Compatibility:
Use as the perimeter air/vapor barrier detail around door and window frames within a RESISTO or SOPREMA air barrier assembly. It is self-adhering; primers and adjacent sheet membranes are specified by the project design.
Frequently Asked Questions (FAQ):
Q: What sizes are available?
A: 4 in. x 75 ft and 6 in. x 75 ft rolls, both 25 mil thick.
Q: What is it made of?
A: 25 mil elastomeric bitumen with a trilaminate woven polyethylene facer.
Q: Where is it used?
A: As an air/vapor barrier around door and window frames.
Q: How much does one roll cover?
A: 75 linear ft; 4 in. width yields about 25 sq ft and 6 in. width about 37.5 sq ft.
Q: Does it stop drafts?
A: Yes, it provides a continuous air/vapor barrier that eliminates drafts and water leaks.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
Redzone 25 is a perimeter detailing product: use the 4 in. roll for standard frame jambs and the 6 in. roll where more lap onto the adjacent wall membrane is required. Apply to clean, dry, primed-if-required substrates and roll out wrinkles for a continuous seal. It complements a full wall air/vapor barrier system rather than replacing it.
Apply within the membrane's recommended temperature range to clean, sound surfaces; follow manufacturer instructions and local building code requirements for air barriers.
Seal openings right with SOPREMA RESISTO Redzone 25 air and vapor barrier membrane.
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