Flashing is a thin sheet installed to prevent the passage of water into a structure from a joint or as part of a weather resistant barrier (WRB) system.

Flashing refers to thin pieces of impervious material or strip of water-resistant material that is installed at roof intersections, around windows and doors, to direct water flow away from the home. Flashing guides water out from the drainage plane to the exterior. It’s layered shingle fashion with the drainage plane to provide positive drainage