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The Tyvek® HomeWrap® is not a vapor barrier product. It actually has a water vapor transmission rate that is quite high, meaning water vapor can easily pass through. By Tyvek Team | Oct 14, 2024
The house wraps are designed to allow water vapor to pass through them, but stop liquid water. They work just like fancy Gortex fabric in jackets and shoes. It's very important for any water vapor that makes it to the backside of an air barrier to keep moving so it gets to the air around the home.
Vycor enV-S is a fully-adhered vapor permeable ("breathable") weather resistive barrier that provides premium weather protection and is an advanced alternative to traditional, mechanically-attached house wraps.
Blueskin VP100 Self-Adhered House Wrap is a residential and multi-family self-adhered vapor permeable, water resistive air barrier membrane. Henry VP100 controls the movement of air, vapor and water through the structure wall for more efficient heating and energy savings.
Controls air flow and water intrusion. Keeps homes cool in the summer, warm in the winter, and dry all year round. Reduces home energy bills. Unique non-woven structure. Breathable and allows moisture vapor to pass through.
Moisture barriers are a key part of home construction. A moisture barrier, also called a vapor barrier or vapor retarder, is a material that stops water and moisture from passing through walls, floors, and other parts of a building.
Shop Vycor 3.33-ft x 120-ft Water Resistant House Wrap (400-sq ft) at Lowe's.com. Vycor enV-S is a fully-adhered vapor permeable (“breathable”) weather resistive barrier that provides premium weather protection and is an advanced.
Most house wraps are weather-resistant barriers (WRBs) that aim to prevent air and moisture infiltration to the wall system while protecting the sheathing. In this post, we compared Barricade® Wrap Plus, Tyvek® HomeWrap®, HomeGuard® House Wrap, CertainTeed CertaWrap™, and the ZIP System®.
Grip-Rite ® House Wrap-LWE is a mechanically installed weather barrier with exceptional performance. It prevents moisture penetration into the building envelope without compromising vapor permeability from inside the structure. Lightweight and durable, the transparent fabric is easy to install and withstands UV damage for up to 300 days.
“Perm rate” is the rate at which a house wrap allows water vapor to pass through it. Bargain house wraps often have low perm rates and they should be avoided. In cold climates, this is especially true for older homes with little or no moisture barriers.