Velux BDX CK04 2000F Insulation + BFX Underfelt Recessed Collar 550mm x 980mm
- Velux BDX CK04 Insulation + BFX Underfelt Recessed Collar measuring 550mm x 980mm (21.7" x 38.6")
- Designed to insulate around roof window frames, cutting heat loss and preventing cold bridging
- Includes flexible foam collar with click fittings for a secure, quick installation
- Features a self-supporting drainage gutter to safely channel water away
- Compatible with standard Velux flashings: EDL, EDP, EDW and EDZ
The Velux BDX CK04 Insulation and BFX Underfelt Recessed Collar is a practical roofing accessory for roofers, builders, and loft converters aiming for efficient and durable roof window installations. This collar ensures a tight, weatherproof seal around your roof window frame, helping to reduce heat loss and eliminate cold bridges in your roofing structure. Please note, this product is supplied as the insulation collar and underfelt collar only.
Application
Ideal for use with Velux roof windows, this insulation collar works alongside standard flashings to improve thermal performance and prevent moisture ingress. It is suitable for new builds, re-roofing projects, and extensions where maintaining roofing integrity and energy efficiency is essential. The flexible foam design and click fittings simplify fitting on-site, saving time when working at height.
Dimension
- Overall size: 550mm x 980mm (21.7" x 38.6")
Material
- Flexible foam insulation
- Pleated underfelt collar material
Type
- Roof window insulation and underfelt collar
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.
