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. 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.

According to the usgbc. Function of a water resistive barrier. What is a water resistive barrier. Integrated barriers like lp weatherlogic air water barrier remove the need for multiple materials in an exterior wall assembly.

There are also materials that function only as a water resistive barrier that are not air barriers. High performance air and water barriers resist air and water intrusion which reduces the amount of moisture vapor in the panels. Contact the air and. A single material can function as all three an air vapor and water resistive barrier.

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