WaterShed Low Perm House-Wrap is a purpose-built weather-resistive barrier designed to shield your exterior walls from rain while guiding moisture out of the wall cavity. With its low-perm formulation, this wrap helps reduce wind-driven water intrusion and supports a tight, energy-efficient building envelope without trapping excess moisture inside your walls.
Engineered for large-scale projects, this roll delivers long, seamless runs that minimize joints and potential leak paths. The combination of wide coverage and durable construction makes it a practical choice for new builds, renovations, and off-season installs where reliable moisture management matters most.
- 108 in. wide by 100 ft. long, providing about 900 sq ft of coverage.
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Material thickness: 8 (unit unspecified) thick for added durability against job-site wear and wind.
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Perforation: Non-perforated surface to maintain a continuous barrier against moisture.
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Brand and line: WaterShed, Low Perm sub-brand crafted for controlled vapor diffusion and rain protection.
Why choose WaterShed Low Perm is about more than just a barrier. It’s a smart, hands-on solution that helps keep your sheathing dry during rain events and drying cycles after wet weather. By reducing air leakage while still allowing the wall to breathe slowly, it contributes to more stable indoor comfort and can support long-term durability of the home exterior.
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Moisture control in real-world conditions: Blocks driving rain from reaching the wall cavity while permitting enough vapor diffusion to prevent condensation buildup inside the wall assembly.
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Fast, efficient installs: Wide 108-inch width lowers the number of seams, speeding up sheathing installation and reducing field labor.
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Versatile applications: Suitable for wood, engineered wood, and other standard wall substrates behind a variety of siding materials.
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Durable performance: Designed to withstand typical job-site handling and environmental exposure during construction.
Ideal for builders and homeowners tackling new construction, exterior remodels, or weather-sensitive projects in climates with significant rainfall or humidity. If your goal is a robust moisture-management strategy that helps protect wood framing and interior finishes, WaterShed Low Perm offers a reliable, go-to option.
How it helps you succeed — By combining a wide, long roll with a non-perforated surface and a low-perm profile, this wrap reduces labor time, minimizes leakage paths, and supports a healthier building envelope. Use it in conjunction with proper flashing, fasteners, and sealing details to maximize performance and longevity of your exterior walls.
