Flat roof sun tunnel

The VELUX Group is dedicated to producing roof windows which are synonymous with quality and reliability. Our commitment to you does not end once your roof window has been installed. All VELUX roof windows are backed by a 10-year guarantee. The VELUX guarantee does not in any way affect your statutory rights.

See our guarantee document for full details

The 1 meter flexible tunnel is the perfect choice for VELUX sun tunnel installations when rigid tunnels cannot be used – i.e. when there is a beam or other obstacle between the roof and the ceiling. This sun tunnel is recommended for lengths from 0.2 to 0.9 meters between the roof and ceiling, and it has a diameter of 35 cm.

The frame is made of white PVC. Sash and diffuser are made of ASA plastic and the dome is made of transparent plastic (acrylic or polycarbonate). The tunnel has a super high reflective coating that delivers up to 98% daylight reflectivity for optimum natural light conditions in your home, even on cloudy days.

The 1.7 meter long rigid tunnel should be used when greater lengths are necessary and to ensure adequate daylight levels are obtained. It is recommended for lengths between 0.8 and 6 meters and is effective up to 6 meters using tunnel extensions. It has a diameter of either 35 or 25 cm and it is supplied with 2 x 45 degree bends

The frame is made of white PVC. Sash and diffuser are made of ASA plastic and the dome is made of transparent plastic (acrylic or polycarbonate) and the tunnel has a super high reflective coating that delivers up to 98% daylight reflectivity for optimum natural light conditions in your home, even on cloudy days.