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Velux Flat Roof Kerb

Advanced technology protects from the elements

Award winning quality and finish

£272.24 ex. VAT£326.69 inc. VAT

Please select your options to purchase
Lead Time: 2-3 weeks


Velux Flat Roof Kerb

The Velux Flat Roof Kerb offers you all the benefits of a Velux Roof Window on a flat roof. The Flat Roof Kerb enables you to install a wide range of standard Velux windows, such as the centre pivot roof window, whether that be in pine or polyurethane, or the Velux Integra roof window. 

Please note: roof window is not included. Kerb only.

Features of the Flat Roof Kerb:

  • Insulated timber kerbs to allow the installation of standard Velux roof windows in a flat roof.
  • Select the insulated timber kerb to match the size of your roof window.
  • Allows you the flexibility to select the most appropriate type of roof window for your application such as white polyurethane finish or Velux Integra.
  • Glazing with a laminated inner pane is recommended for high level applications.
  • Roofing material is dressed up the sides of the kerb, then overlapped with aluminium cover parts.
  • U-Value of 0.60 W/m²K.
  • Roof pitches from 0°-15°.


  • Timber flat roof kerb.
  • Aluminium cover parts.
Product Code External Window Frame Size Structural Opening Size
CK02 55 x 78 cm 60 x 100 cm
CK04 55 x 98 cm 60 x 120 cm
MK04 78 x 98 cm 80 x 120 cm
MK06 78 x 118 cm 80 x 140 cm
MK08 78 x 140 cm 80 x 165 cm
SK06 114 x 118 cm 115 x 140 cm
UK08 134 x 140 cm 135 x 165 cm

  • For Flat Roof Kerbs, Velux offer a 10 year guarantee as standard.

    For more information, click here.

  • For installation instructions, click here.

  • If you are not satisfied with any LB Supplies products you can return them within 14 days of purchase as long as they are unused and in their original condition and packaging. If you purchased from our website and would like to return your products, please download the LB Supplies returns form below and include it with the return. Once we′ve received your unused products, we′ll refund you the amount of the original purchase, excluding any delivery costs, using your initial method of payment. Some products may incur restocking charges. For all returns and any exchanges, you are required to cover the cost of the return delivery to our offices.  For your own security, we recommend using a recorded delivery service when sending goods to us.

    Click here for a product returns form.