DOUBLE SKIN FACADES 3 from 3

The shading device is placed inside the cavity for protective reasons.

In most cases, the airflow through the glazing cavity is driven by natural buoyancy (hot air rises) aided by wind pressure differences, although some systems use small fans (often driven by photovoltaics).

In hybrid systems, HVAC supply or exhaust air flows are directed through a glazing cavity before connecting with outside.

Ventilated cavities may extend the height of the building, several stories, or be limited to a single storey.

DSFs can be categorized based on the type (geometry) of the cavity.

In a box window type DSf, the horizontal and vertical partitioning divide the facade in smaller and independent boxes.

In the shaft box type) a set of box window elements are placed in the facade.

These elements are connected via vertical shafts situated in the facade. These shafts ensure an increased stack effect.

In the corridor facade, horizontal partitioning is realized for acoustical, fire security or ventilation reasons.

In multi-storey DSFs, no horizontal or vertical partitioning exists between the two skins.

The air cavity ventilation is realized via large openings near the floor and the roof of the building.