Air And Water Resistive Barrier

A single material can function as all three an air vapor and 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. Integrated barriers like lp weatherlogic air water barrier remove the need for multiple materials in an exterior wall assembly. According to the usgbc. 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.

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. Function of a water resistive barrier. Waterproof and resilient it may be spray roller or brush applied directly to approved wall substrates. Or 0 13 to 38 mm which is intended to resist liquid water that has penetrated behind the exterior cladding.

What is a water resistive barrier. High performance air and water barriers resist air and water intrusion which reduces the amount of moisture vapor in the panels. There are also materials that function only as a water resistive barrier that are not air barriers. A water resistive barrier is a thin membrane typically 5 to 15 mils thick 005 to 0 015 in.

Air barrier water resistive barrier vapor permeable vapor retarder 45201 weathertech brochure 2018 r3 indd 2 4 23 18 12 42 pm.