What is a Rainscreen?

A rainscreen is defined as an assembly applied to an exterior wall which consists of, at minimum, an outer layer, an inner layer, and a cavity between them sufficient for the passive removal of liquid water and water vapor.

Rainscreens are effective at managing moisture and provide exceptional opportunities for energy-efficient performance via continuous insulation and reducing thermal bridging.

Assemblies that fall into this definition range from masonry, to clip and rail, and pressure-equalized systems.

Rainscreen Diagram

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