What is a water-resistive barrier?
A water-resistive barrier is a secondary line of defense against water penetrating into the wall system – the primary defense being the exterior wall cladding. While some think it only serves to protect the walls during the construction process, this barrier must perform even after the siding/exterior cladding is installed. A water-resistive barrier is a secondary line of defense against water penetrating into the wall system – the primary defense being the exterior wall cladding. While some think it only serves to protect the walls during the construction process, this barrier must perform even after the siding/exterior cladding is installed.
