VELUX BFX 1000 Underfelt Collar
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Description:
The VELUX BFX underfelt collar includes a transverse drainage gutter ensures a fast connection between the VELUX roof window and the roofing felt/membrane. It helps to protect against drafts and wind driven rain and snow around the window installation.
It comes as one piece making fitting easy, especially around the corners.
The transverse drainage gutter included also prevents any water ingress around the roof opening caused by missing or broken slates or tiles above the window.
Key features:
- Special diffusion open underfelt of polypropylene and galvanised steel drainage gutter.
- Can be used in all roofing constructions in roof pitches between 15° and 90°
- Well suited for roofs with or without battens
- Can be used for both ventilated and unventilated constructions
- The underfelt collar is pleated and can be easily dressed round the battens of the roof, irrespective of the batten distance.
Downloads and Data Sheets:
Download BFX Installation Manual
CK01 (55 x 70 cm)
- CK01 (55 x 70 cm)
- CK02 (55 x 78 cm)
- CK04 (55 x 98 cm)
- CK06 (55 x 118 cm)
- FK04 (66 x 98 cm)
- FK06 (66 x 118 cm)
- FK08 (66 x 140 cm)
- MK04 (78 x 98 cm)
- MK06 (78 x 118 cm)
- MK08 (78 x 140 cm)
- MK10 (78 x 160 cm)
- MK12 (78 x 180 cm)
- PK25 (94 x 55 cm)
- PK04 (94 x 98 cm)
- PK06 (94 x 118 cm)
- PK08 (94 x 140 cm)
- PK10 (94 x 160 cm)
- SK01 (114 x 70 cm)
- SK06 (114 x 118 cm)
- SK08 (114 x 140 cm)
- SK10 (114 x 160 cm)
- UK04 (134 x 98 cm)
- UK08 (134 x 140 cm)
- UK10 (134 x 160 cm)
Related Products
Description:
The VELUX BFX underfelt collar includes a transverse drainage gutter ensures a fast connection between the VELUX roof window and the roofing felt/membrane. It helps to protect against drafts and wind driven rain and snow around the window installation.
It comes as one piece making fitting easy, especially around the corners.
The transverse drainage gutter included also prevents any water ingress around the roof opening caused by missing or broken slates or tiles above the window.
Key features:
- Special diffusion open underfelt of polypropylene and galvanised steel drainage gutter.
- Can be used in all roofing constructions in roof pitches between 15° and 90°
- Well suited for roofs with or without battens
- Can be used for both ventilated and unventilated constructions
- The underfelt collar is pleated and can be easily dressed round the battens of the roof, irrespective of the batten distance.
Downloads and Data Sheets:
Download BFX Installation Manual
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