Flexible Tunnel
TLF and TWF can be installed at a distance between 0.4 m and 2 m measured in the centre line of the tunnel from the top edge of the batten to the ceiling finish level.
|
Rigid Tunnel
TLR and TWR can be installed at a distance between 1.45 m and 1.85 m measured in the centre line of the tunnel from the top edge of the batten to the ceiling finish level. At distances from 1.85 m up to 6 m, the rigid tunnel must be lengthened by VELUX Sun tunnel rigid extension.
|