PRE-DRYWALL INFORMATION

Why a Proper WRB (Weather‑Resistant Barrier) Is Essential for Your Home

A properly installed Weather‑Resistant Barrier (WRB) is one of the most important defenses your home has against moisture damage. It must fully cover the exterior sheathing, be integrated with correctly taped windows, and include proper flashing at all exterior and roofing penetrations. The bottom flange of windows should not be taped, as this area must remain open to allow any water that enters the window assembly to drain out. When these details are missed, water can enter the wall or roof cavity, leading to rot, mold, damaged insulation, and costly structural repairs. A continuous, well‑flashed WRB keeps your home dry, protected, and performing the way it should.