StegoCrawl® Wrap 12-Mil Scrim Reinforced Vapor Retarder – 12' x 100' Roll (1,200 sq ft)
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- Ships via palletized freight (LTL): Due to its size, the product is shipped on a pallet
- Rated for outdoor use ☀️
Get durable, mid-weight moisture protection with a standout look: StegoCrawl® Wrap 12-Mil Reinforced Vapor Retarder combines high puncture resistance, low water vapor permeance, and a distinctive dual black/white finish that brightens crawl spaces while standing up to demanding jobsite conditions. Its multi-layered construction — high-strength scrim reinforcement bonded between two layers of virgin polyethylene film — delivers the strength and moisture control contractors need without the bulk of heavier-gauge films.
Suited for new construction or retrofit crawl space encapsulation, soil-gas and radon mitigation systems, and temporary enclosure or containment applications, StegoCrawl Wrap 12-Mil offers a Class I vapor rating that exceeds ASTM E1745 requirements. It's also independently tested for UV resistance, making it a strong choice for extended outdoor exposure during construction.
Why Choose StegoCrawl Wrap 12-Mil Reinforced?
- Low Permeance – Tested to ASTM F1249 at 0.032 perms, Class I, for reliable crawl space moisture control
- Strong Puncture Resistance – 161 N puncture rating (ASTM D4833) for demanding jobsite durability
- Solid Impact Resistance – Withstands 792 grams (ASTM D1709) of free-falling dart impact
- Dependable Tensile Strength – MD 32.8 lbf/in / TD 28.3 lbf/in with high elongation (MD 721% / TD 771%) for flexibility under stress
- Proven UV Resistance – Tested per ASTM D2565 (4-week xenon-arc cycle) with results confirming continued performance for outdoor applications
- Diagonal Reinforcement – Scrim-reinforced design helps prevent tears from spreading during install or over time
- Dual Black/White Finish – Brightens the crawl space while offering a distinctive two-tone appearance
- UV & Thermal Stabilized – Rated for versatile outdoor use beyond crawl space applications
- Made in the USA – Manufactured with US and global materials, zero VOCs
- Life of the Building™ Warranty* – Backed by Stego Industries' confidence in long-term performance (*crawl space applications only)
Specifications
| Property | Result |
|---|---|
| Thickness | 12 mil |
| Water Vapor Permeance | 0.032 perms (Class I) |
| Puncture Resistance | 161 N |
| Impact Resistance | 792 grams |
| Tensile Strength (MD/TD) | 32.8 / 28.3 lbf/in |
| Tensile Elongation (MD/TD) | 721% / 771% |
| UV Resistance (post 4-wk xenon-arc) | Tensile Strength MD 31.4 lbf/in; Permeance 0.039 perms |
| Weight | 56 lbs/MSF |
| Roll Size | 12' x 100' (1,200 sq ft) |
| Roll Weight | ~75 lbs |
Common Applications
- Crawl space vapor barriers (new construction or retrofit)
- Soil-gas / radon mitigation retarders
- Temporary enclosure and containment film, including extended outdoor exposure
Need help?
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About Radon
What is Radon?
Radon is a radioactive gas formed from the decay of uranium in soil and rock.
It moves from the ground into homes in enclosed spaces like basements.
Health Risks Associated with Radon
Radon is the second leading cause of lung cancer after smoking.
Radon exposure is typically asymptomatic, meaning there are no immediate signs of illness.
How to Mitigate Radon Exposure
After identifying radon issues with accurate testing, you need to install mitigation systems.
If you need help identifying the best system or risks, we'll help you for free.