Weather barriers are a must with exterior foam sheathing

There are several issues with the use of foam sheathing as a water resistive barrier (WRB) and air barrier - even though there are standards that if passed allow it to qualify as a WRB. Issues such as dimensional instability and poor water management that are intrinsic with foam products can be remedied by using a wrap product as the water resistive barrier and to provide continuity at air barrier details. Find out more.