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It can be used with all roof and roofing materials with inclinations between 0-60 °.
If the distance between the roof and the starting point of the room ceiling is between 90 and 185 cm, the use of a VELUX sun tunnel is possible. This distance can be extended up to 6 meters with additional pipes (ZTR). The VELUX sun tunnel with its hard pipes, with its silver alloy inner surface, moves the light hitting the glass surface on the roof down by 99%. If the distance between the roof and the ceiling is less than 90 cm (up to a min. 40 cm), a flexible pipe system should be applied. The amount of light to be provided in the room with the sun tunnel will be at the level of 700 LUX in sunny weather. The diameter of the sun tunnel is 35 cm.
ISO 9001, OHSAS 18001 and ISO 14001, 5 Years Warranty