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Velux Underfelt Collar

Advanced technology protects from the elements

Award winning quality and finish

£20.65 ex. VAT£24.78 inc. VAT

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Lead Time: 2-3 weeks


Velux Underfelt Collar

The Velux Underfelt Collar ensures a tight connection between your Velux Roof Window and the roofing membrane. This product provides protection against tough weather conditions such as wind, rain and snow. A Tranverse Drainage Gutter is also included and this prevents any water around the roof opening caused by missing or damaged tiles or slates above the window.

  • Ensures a weather-tight seal between the roof window and the roof.
  • Pleated material ensures a flexible and tight seal to the underfelt of the roof, whatever it's construction.
  • Made from diffusion open material to minimise risk of condensation.
  • Comes with transverse drainage gutter to lead water away from the head of the window if a tile or slate is broken above the window.
  • Welded corners ensure watertight and simple installation.

  • For Installation Products, Velux offer a 10 year guarantee as standard.

    For more information click here.

  • For Velux Underfelt Collar 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.