Price From: £31.32 (inc. VAT) £26.10 (ex. VAT)

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The VELUX BDX insulates the window frame and reduces heat loss. The installing of the window is a simple with easy assembly of the collar.

BDX Insulation Collar Installation Instructions

BDX 2011 Twin 18mm Gap Installation Instructions

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Design Tool

Assist with window selection and all insulation components

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Price From: £31.32 (inc. VAT) £26.10 (ex. VAT)
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Further Detail

The VELUX BDX 2000 Insulation Collar reduces heat loss by insulating around the roof window frame and comes with an underfelt collar which ensures a weather tight seal between the roof window and the roof. The underfelt collar is made from diffusion open material which minimises risk of condensation. It includes a transverse drainage gutter too which leads water away from the head of the window if a tile or slate is broken above the window. Easy installation and comes in a variety of sizes. The BDX 2000 will give you extra protection and peace of mind for a low cost.