What is the role of a Pressure Equalization Rainscreen System?

A Pressure Equalization Rainscreen System is designed primarily around the principle of using vented cladding and air cavities to manage moisture and air pressure behind the cladding. This system functions by allowing air to circulate freely between the cladding and the wall assembly, which helps to equalize pressure differentials that can cause water infiltration.

By incorporating air cavities, this system allows for any moisture that does manage to get behind the cladding to be drained away or evaporate, reducing the risk of water damage, mold growth, and other issues associated with trapped moisture. The design of such systems significantly enhances the durability and longevity of building envelopes while maintaining aesthetic value because it combines functionality with architectural design.

While thermal insulation, airflow management, and water-resistant barriers are important aspects of building performance, they are not the primary role of a Pressure Equalization Rainscreen System. Instead, the focus is on the integration of vented cladding and the effective design of air cavities to handle moisture dynamics.