For the ultimate in insulation, we recommend the VELUX BDX insulation collar. It reduces heat loss by eliminating thermal bridges between the window and your roof structure and it also comes with VELUX BFX underfelt collar. This item is suitable for coupled installations only (100mm gap).
The VELUX BDX 2000 insulation packages comes complete with the VELUX BFX underfelt collar.
The VELUX BDX insulation collar sits between the roof structure and the window frame and insulates the gap between the two, which reduces heat loss. The insulation collar also includes the BFX underfelt collar in the package. The BFX ensures a weather tight seal between the roof window and the roof. The BDX 2000 comprises of three installation products - Insulation Collar (BDX), Underfelt Collar (BFX), and drainage gutter. Together they seal and insulate around the window externally.
- Insulates around the roof window frame, reducing heat loss and eliminating cold bridges
- Makes insulating and installing the window a simple process
- Comes with the VELUX BFX underfelt collar
- Click fittings ensure fast and accurate assembly.
|Size (W x H)||114 x 118cm|
All Sterlingbuild orders have FREE standard delivery when your order is over £100 + VAT.
However next day delivery will carry a small next day delivery charge which will be shown in the final shopping basket
Unfortunately additional delivery charges will apply if you live in the Scottish Highlands and UK islands. These delivery charges are based on additional costs from our national couriers.
If additional shipping fees apply, a member of our team will contact you before processing your order to let you know.
We will do our very best to make sure your delivery arrives by the date required, however manufacturer availability and delivery schedules cannot always guarantee this.
Should your estimated delivery date differ from that displayed on our website, one of our team will inform you by email or telephoneView full Delivery Information