£49.90 (inc. VAT) £41.58 (ex. VAT)

Be the first to review this product

Create a tight seal between your sun tunnel and felt underlay with the VELUX BFX 1000 Underfelt collar.

  • Suitable for two sizes: 10” and 14”
  • Includes a drainage gutter, which secures a tight roof installation.
  • Flexible and tight connection.

* Required Fields

£49.90 (inc. VAT) £41.58 (ex. VAT)

Pricing a project? For the best deal call 01786 357252

Safe & Secure Shopping
Need Expert Advice?

Further Detail

The pleated underfelt collar BFX ensures a flexible and tight connection between the underfelt and the top of your sun tunnel.

With the pleated underfelt VELUX BFX Collar, you ensure that you have a flexible and tight seal to the underfelt of the roof and the top of your sun tunnel, whatever the construction. This kit also includes a drainage gutter which aids in leading water away from the top of the room window if a tile or slate is broken above the window.

Features & Benefits:

  • Strong connection between the Sun Tunnel and roof.
  • Maintains a professional finish to the roof.
  • Suitable for both sizes of Sun Tunnel: 10” and 14”
  • A weathertight seal in ensured from the welded corners
  • Easy to install
Besides price…
why else would you choose YARD?
  • Roof Windows is all we do – we love what we do
  • We’re nice to deal with
  • We get a kick out of helping our customers
  • We make sure we fully understand your project
  • So, we can offer you the best window options
  • We believe we’re exceptionally good at this
  • We’ll keep your tradesmen or installer happy
  • We always ask the right questions before you buy
  • If things go wrong – we take a pride in sorting

Trustpilot Human score    Trustpilot Stars    Trustpilot Logo