Air And Water Resistive Barrier

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

Air and water resistive barrier.

Or 0 13 to 38 mm which is intended to resist liquid water that has penetrated behind the exterior cladding. Understanding the functions of the materials used is critical so that the building performs in accordance to the project requirements. A one component fluid applied vapor permeable air water resistive barrier optimized for airless spray application. 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.

Many builders have turned to huber s zip system sheathing a type of osb with a coating of resin impregnated kraft paper. What is a water resistive barrier. 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. A single material can function as all three an air vapor and water resistive barrier. High performance air and water barriers resist air and water intrusion which reduces the amount of moisture vapor in the panels. According to the usgbc.

Waterproof and resilient it may be spray roller or brush applied directly to approved wall substrates.