Velux BDX 2011 Insulation Collar for Twin Installations

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Product code: 47209c
local_shipping Estimated delivery time: 2-4 Working days
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For the ultimate in insulation, we recommend our BDX Insulation Collar.
It reduces heat loss by eliminating thermal bridges between the window and your roof structure. Also comes with BFX Underfelt Collar.
 

 Technical details

  • Underfelt material: frothed polyethylene, heat transfer group 040.
  • Collar material: polypropylene.
  • Material thickness: 0.5 mm.
  • SD value (water vapour diffusion resistance): 0.03 m.

Note: The BDX Insulation Collar cannot be used with EDN flashings