Application
The VELUX Sun tunnel can be installed in roofs with pitches between 15° and 60°
The VELUX recommendations on the application areas for rigid tunnel and flex tunnel are as follows:
TWF/TLF 014 - flex tunnel: To be installed at a distance between 0.4m – 2m measured in the centre line of the tube from the top edge of the batten to the ceiling finish level.
TWR/TLR 014 - rigid tunnel: To be installed at a distance between 1.45m – 1.85m measured in the centre line of the tube from top edge of batten to ceiling finish level. In case of distances of over 1.85m up to 6m the rigid tunnel must be lengthened by VELUX Sun tunnel extension rigid.