The purpose of a pressure equalized rainscreen in building facade design is to help manage moisture and prevent water infiltration into the building envelope. The rainscreen system creates a cavity between the outermost surface of the wall and the building's sheathing or insulation. This cavity allows for air to circulate behind the cladding, creating a pressure equilibrium that can help prevent water from infiltrating the wall system. In addition to managing moisture, a pressure equalized rainscreen can also improve energy efficiency, thermal comfort, and indoor air quality by reducing the chances of mold growth and other moisture-related issues.
Publication date: