Velux Flexi Sun Tunnel

Last Updated: September 18, 2015 10:23

The Velux flexi sun tunnels are designed to provide natural light into areas of the house such as corridors, stairwells, bathrooms and cupboards, where installation of a roof window is not possible.

Purchase options

Choose the best way to buy this product:

Product Details

VELUX’s innovative Flexi Sun Tunnel brings daylight into your loft. Our Flexi Sun Tunnel is ideal for a ceiling to roof connection of up to 2 metres in length.

VELUX also makes installation simple, regardless of your roofing type. For flat roofing, install our integrated, grey aluminium frame with flush flashing. For profile roofing, choose our black polyurethane frame and lead-free lower flashing.

The features of the flexi sun tunnel are:

• The 2-metre-long, super reflective, flexible tunnel has a diameter of 35cm.

• Easy to assemble.

• The diffuser kit comes complete with a frosted acrylic insulating pane and a standard, white ceiling trim ring.

• Integrated polyurethane flush frame with 4mm toughened glass with clear and clean coating on the outside.

Specification & Product Codes


Environmental statement:
ISO 14001:
Quality certification:
ISO 9001, EN ISO 12567-2:2005, EN 14351-1:2004-04



133742 - Velux Sun Tun 355mm Dia 2m Flex Slate

133743 - Velux Sun Tun 355mm Dia 2m Rigid Slate

414667 - Velux Sun Tun 355mm Dia 2m Flex Tile

740980 - Velux Sun Tun 355mm Dia Flex Flat Roof

967814 - Velux Suntun 255mm 2m Rigid Tube Slate