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VELUX CFU 0020Q Fixed Flat Roof Window Base

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£279.00 Incl. VAT
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The VELUX CFU 0020Q Double Glazed Fixed Flat Roof Window Base floods your home with more natural light and brightens up the darkest of spaces. This window base has an elegant glass-to-edge design, with flat and straight lines that sit flawlessly on your roof.

The new generation of VELUX glass rooflights features 52% more natural daylight, reduced height, a new state of the art design that makes this range sit flush with your roof, discreet black corner keys for a smoother finish and new installation screws and prepared for craning.

This base creates a stunning finish with an invisible sash and slim frame whilst providing your home with as much daylight as possible, even when a blind is installed. The moulded polyurethane frame around a plywood core creates a slim finish, this reduces the bulky look.

VELUX high-performance insulation is integrated into the frame to give the best possible protection against heat loss. This, combined with our optimised protection against thermal bridges, delivers a warmer, more comfortable home.

Please note a polycarbonate top cover is required for use with this product to create a completely flat roof window system. This frame is suitable for use with all VELUX ISU top covers. This frame is ideal for roof pitches between 0-15°.

VELUX provide a 10-year guarantee on roof windows and a 5-year guarantee on electrics.

Features & Benefits

  • Slim design for maximum daylight
  • Excellent sound reduction
  • Suitable for pitches between 0-15°
  • Compatible with all VELUX ISU top covers
  • Protects against heat loss
  • Prevents thermal bridges
  • Creates a bright home
  • 10-year guarantee


Size 600mm x 600mm
600mm x 900mm
800mm x 800mm
900mm x 1200mm
900mm x 900mm
1000mm x 1000mm
1200mm x 1200mm


Code CFU Operation Fixed Glazing Double Glazing Style Flat
Glazing Tint Clear Tint Material Glass

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