RETROroof

For the roof area, direction-selective systems are preferable, which are transparent and translucent from one preferred direction, opaque and sun-blocking from another.

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Directional selectivity: Southlight deflection

• Solar use possible

• Suppression of overheating summer sun

• View through the southern sky

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Directional selectivity: Northern Lights deflection

• Protection of the interior from direct sunlight

• Even, diffuse room illumination

• Looking through the northern sky

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In east- and west-facing roof areas, the light control systems can be installed (vertically) from the eaves to the ridge and can be used either to direct the north or south light. Preferably, however, the retro systems are installed horizontal.

 

In the roof area, the retro systems are integrated into the SDR of insulating glass as a fixed ticking. Depending on the roof pitch, blindable or rotatable retro systems are also available.

 

The illustrations show the possibilities of light control or shading in flat roofs and north and south sheds. Which system is used is decided by the use of the interior. In museum or sports buildings, direct light entry from the south is generally prevented. The interior
is illuminated exclusively by daylight from the northern sky. In passive solar architecture, the flat southern sun is gained and only the high summer sun is faded out.