Stego Wrap Vapor Barrier/Retarder
Stego Wrap Vapor Barrier/Retarder is a high-performance below-slab vapor protection system designed to resist moisture intrusion and soil gas migration in residential, commercial, and industrial concrete applications. Made from a proprietary blend of prime virgin polyolefin resins and additives, it provides long-term durability and protection beneath concrete slabs-on-grade.
This vapor barrier helps prevent costly flooring failures and reduces the migration of harmful soil gases such as radon and methane. The 10-MIL version is a cost-effective vapor retarder that exceeds ASTM E1745 Class A requirements—ideal for projects with moderate protection needs. The 15-MIL version offers enhanced puncture resistance, extremely low permeability, and comes with a Life of the Building Warranty, making it the flagship product for critical slab protection.
Both versions are manufactured in the USA and exceed ASTM E1745 Class A, B, and C standards. They resist deterioration, are simple to install, and are backed by years of proven field performance. Whether you're working on a standard build or a high-spec project, Stego Wrap delivers a reliable solution for under-slab vapor and gas control.
Features
- Reduces moisture intrusion beneath concrete slabs.
- Helps block soil gases including radon and methane.
- Resists deterioration and long-term degradation.
- Offers strong puncture and tear resistance.
- Installs easily with minimal labor or tools.
- Made from prime virgin polyolefin resins.
- Exceeds ASTM E1745 Class A, B, and C standards.
- Available in 10-MIL and 15-MIL thicknesses.
- 15-MIL version includes Life of the Building Warranty.
- Made in the USA and backed by technical support.
Stego Wrap Vapor Barrier/Retarder Specifications
| Specification | 10-MIL Version | 15-MIL Version |
|---|---|---|
| Accessories | Stego Mastic, Stego Tape, Stego Tack Tape, Stego Crete Claw Tape. | Stego Mastic, Stego Tape, Stego Tack Tape, Stego Crete Claw Tape. |
| Material | Proprietary blend of prime virgin polyolefin resins and additives | Proprietary blend of prime virgin resins and additives |
| Water vapor permeance | 0.0254 perms | 0.0086 perms |
| Puncture resistance | 3,006 grams | 2,266 grams |
| Tensile strength | 50.6 lbf/in | 70.6 lbf/in |
| Thickness | 10 mil | 15 mil |
| Dimensions (per roll) | 14 ft x 210 ft (2,940 ft²) | 14 ft x 140 ft (1,960 ft²) |
| Roll weight | 146 lbs | 147 lbs |
| ASTM standards met | E1745, F1249, D1709, D882, E154 | E1745, F1249, D1709, D882, E154 |
| Usage | Below-grade vapor retarder | Below-slab vapor barrier |
| Class | A | A |
| Country of origin | USA | USA |
