Which term describes the walls that are designed to shed water and dry remaining moisture?

The correct term for walls that are designed to shed water and allow remaining moisture to dry is "Rainscreen." A rainscreen system is typically composed of two layers: an outer layer that acts as a shield against rain and an inner layer that is designed to allow moisture to escape. This design helps prevent moisture from penetrating interior spaces while still facilitating drying, thus protecting the structural integrity and health of the building.

A mass wall refers to walls made of heavy materials, like masonry or concrete, which can absorb moisture but may take a long time to dry out. Barrier walls, on the other hand, serve to completely resist water penetration, rather than managing moisture with an ability to dry. Drainage walls typically focus on channeling away water that collects behind them but do not necessarily have the built-in mechanism for drying moisture over time like a rainscreen does.