What is a rainscreen facade? How does it protect buildings?

A multi-shell exterior wall construction is referred to as a rainscreen facades. The non-load-bearing facade cladding is attached to the load-bearing wall level at a distance. The outer, curtained shell usually consists of smaller individual elements that are located in front of the actual, already airtight and insulated component. The outer shell of the rainscreen facades is decorative but also protects the building structure from weather influences such as rain, snow, sun, wind and condensation.