VELUX Duo vertical extension

A vertical extension features a roof window with a vertical extension window installed directly below it. The vertical window gives your room character, boosts the feeling of space and provides an extended view to the outdoors. The lower part of the window tilts inwards to ensure safety, especially in children's rooms.

• Provides extended views to the outdoors

• The lower part of the window tilts inwards for child safety

• Comes ready for easy installation of VELUX blinds and anti-heat solutions