Air And Water Resistive Barrier

Function of a water resistive barrier.

Air and water resistive barrier.

Understanding the functions of the materials used is critical so that the building performs in accordance to the project requirements. 3 proven air barrier air barriers isolate interior and exterior environments and limit the amount of air that can infiltrate a structure or leak out of it. Contact the air and. There are also materials that function only as a water resistive barrier that are not air barriers.

The layer beneath the siding the water resistive barrier or wrb is what will protect the plywood or oriented strand board osb sheathing from any water that sneaks in. A one component fluid applied vapor permeable air water resistive barrier optimized for airless spray application. Many builders have turned to huber s zip system sheathing a type of osb with a coating of resin impregnated kraft paper. Waterproof and resilient it may be spray roller or brush applied directly to approved wall substrates.

According to the usgbc. A single material can function as all three an air vapor and water resistive barrier. Air barrier water resistive barrier vapor permeable vapor retarder 45201 weathertech brochure 2018 r3 indd 2 4 23 18 12 42 pm. Integrated barriers like lp weatherlogic air water barrier remove the need for multiple materials in an exterior wall assembly.

A water resistive barrier is a thin membrane typically 5 to 15 mils thick 005 to 0 015 in.