Within the framework of the IEA Task 27 "Performance of Solar Facades" we have tested a series of different combinations of solar protection and glazings. These systems include internal, integrated and external shading devices. The characteristic data are given in the following section.

External blind systems

• three devices with identical complex lamellae

• white, white perforated and brown lamellae (see Figure 1) external blinds

• 90 mm width, a distance of the lamellae of 80 mm

• combination with a low-e glazing (pos. 2, 16mm Argon), g=48%, U=1.3 W/(m2K)

Internal systems

• white lamella type blinds using slats 25mm white, distance 22mm

• textile roller blind silver (outside) and white (inside)

• combination with a low-e glazing (pos. 2, 16mm Argon), g=48%, U=1.3 W/(m2K)

• combination with a low-e glazing (pos. 2, 16mm Argon), g=35%, U=1.1 W/(m2K)

Integrated systems

• white lamella type blinds using slats 15mm white, distance 13mm

• textile roller blind grey (both sides)

• integrated in low-e glazing (pos. 2, 27mm air), g=47%, U=1.5 W/(m2K)

• integrated in low-e glazing (pos. 2, 27mm air), g=32%, U=1.4 W/(m2K)