Velux Fixed Flat Roof Window Base

Please Note: VELUX flat roof windows require a base unit and top cover to operate correctly. 

Fixed flat roof window base, polyurethane frame around plywood core with double-glazed unit. Suitable for roof pitches between 0-15°. Laminated inner pane for additional safety, as standard Compatible with all VELUX ISU top covers

Please note all bases are only compatible with a flat or curved glass covers

The code of your existing VELUX window may differ if it was purchased pre-2014