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Description
The VELUX BDX 2011 (18mm gaps) Insulation and Underfelt Collar for twin installations reduces heat loss between the roof structure and your windows.
Designed for insulating around your roof window, the BDX creates a weathertight seal that works effectively to reduce cold bridges. A special drainage gutter is also provided which drains water away from the window effectively preventing leakage. For use in applications where twin flashing kits with an 18mm gap are being installed.
Features & Benefits
- Watertight
- For use with twin installations
- Reduces heat loss
- BFX underfelt collar supplied
- Elimites cold bridges
- Weathertight seal
- Quick & easy to install
- 10-year guarantee
Product Specifications
Available in sizes: CK02 - 55 x 78cm, CK04 - 55 x 98cm, CK06 - 55 x 118cm, MK04 - 78 x 98cm, FK06 - 66 x 118cm, MK06 - 78 x 118cm, MK08 - 78 x 140cm, UK04 - 134 x 98cm, UK08 - 134 x 140cm, PK08 - 94 x 140cm, PK10 - 94 x 160cm, SK06 - 114 x 118cm
Please Note: The BDX insulation collar is not compatible with EDN or EDJ recessed flashings.
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