Velux BDX UK08 2000F Insulation + BFX Underfelt Recessed Collar 1340mm x 1400mm
- Velux BDX UK08 insulation collar with BFX underfelt collar, size 1340mm x 1400mm (52.8" x 55.1")
- Reduces heat loss and eliminates cold bridges around roof window frames
- Flexible foam construction for a secure and adaptable fit on standard window sizes
- Fast, precise assembly with click fittings and self-supporting drainage gutter to safely channel water
- Compatible with EDL, EDP, EDW, and EDZ flashings for reliable weatherproofing
The Velux BDX UK08 2000F insulation collar paired with the BFX underfelt recessed collar is designed for roofers, builders, and loft converters seeking a reliable solution to improve thermal efficiency around roof windows. This combination provides a snug, weatherproof seal that helps prevent heat loss and cold bridging, making it an essential component for new builds, extensions, or re-roofing projects. Please note, this product is supplied as shown; accessories such as window flashings are sold separately.
Application
Specifically engineered to fit Velux roof window frames, this insulation collar works alongside compatible underfelt membranes to create a tight seal between the window and the roof structure. It is ideal for installation in pitched roofs where excellent water shedding and airtightness are critical. The integrated drainage gutter ensures water is safely directed away, reducing the risk of leaks or damp issues. Suitable for both new installations and retrofit projects, it streamlines the fitting process and supports long-term durability in the variable UK climate.
Dimension
- Overall size: 1340mm x 1400mm (52.8" x 55.1")
Material
- Flexible foam insulation for adaptability and thermal performance
- Durable pleated underfelt collar for effective sealing and water resistance
Type
- Roof window insulation and underfelt collar combination
Accessories shown in images are not included. This product supports standard Velux window sizes and is designed for efficient, trade-friendly installation.
Delivery
Important: The following delivery information applies only to orders placed online.
Delivery Times
When placing your order, you will be able to view available delivery times at the checkout.
Please note: while we aim to deliver within 2–3 business days, this is subject to stock availability. A member of our team will be in touch after you place your order to confirm your delivery date.
Click & Collect is also available from selected branches. However, please be aware that stock levels can fluctuate, so we’ll confirm product availability and collection timing once your order is placed.
Delivery Charges
Orders over £150 ex VAT within our local delivery area qualify for free delivery. This excludes palletised or specialist products.
For orders under £150 ex VAT, standard delivery is £10 plus VAT. Certain products have specific delivery costs:
- Civil Engineering products: £20 + VAT.
- Roofing Tiles under £249.99 ex VAT: £60 + VAT.
Delivery charges and policies may vary at the discretion of our branches, and we reserve the right to amend them as required.
We offer a variety of delivery options to meet your needs nationwide, including pallet shipping (subject to size and weight restrictions), site delivery, and same-day or next-day delivery via TradeKart (available in selected postcodes).
Delivery charges are calculated based on your location, the products ordered, and your selected delivery method. Final costs will be displayed at checkout. If you have specific delivery requirements, please contact your local branch via our Branch Finder.
For any delivery-related enquiries, please email our sales team at websales@lordsbm.co.uk.
