hinterlüftete

Hinterlüftete, often translated as "ventilated facade" or "rainscreen facade," refers to a specific type of building construction where the exterior cladding is separated from the building's structural wall by an air gap. This air gap, or cavity, is typically several centimeters wide and is ventilated, allowing air to circulate freely.

The primary function of a hinterlüftete system is to manage moisture. Rainwater that penetrates the outer cladding is directed down the cavity and can drain away at the base of the wall. Additionally, moisture vapor from within the building can escape through the cavity, preventing its buildup within the wall structure. This helps to protect the insulation and the building's structural integrity from moisture damage.

Beyond moisture control, the air gap in a hinterlüftete facade also contributes to thermal performance. In warmer months, the circulating air can help to dissipate heat that builds up on the exterior cladding, reducing the solar heat gain into the building. In colder months, the trapped air can provide an additional layer of thermal insulation.

The design of a hinterlüftete facade involves careful consideration of the materials used for both the cladding and the insulation, as well as the detailing of ventilation openings and drainage. This system is widely used in modern construction for its benefits in durability, energy efficiency, and interior climate control.