QMG Variable Size: 780 x 1180

• GGL CK04 SD5N2
• 10 year guarantee
• Classic look that fits with different styles
• Conservation package that includes insulation and underfelt collars
• Easy to maintain and clean
• Excellent energy efficiency
• Four flashing options
• Laminated inner pane for maximum safety and security

The Velux BFX 1000 Underfelt Collar offers a strong connection between the roof window and membrane. It helps reduce harsh weather penetration and cold air from entering your property.

It is supplied in one piece ensuring it is easily installed around windows, corners and frames.

Includes a drainage gutter which will lead water away from the top of the window if there is any broken roof material above it.

It will help maintain your property and ensure a professional finish.

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.

• GPL MK06 2070
• White painted pine frame
• Laminated inner pane as standard
• Top hung opening
• The white painted finish of the Velux GPL top hung roof window reflects far more light than a traditional darker surface would and can truly transform your home. Constructed from pine, the frame has been painted white and subsequently triple coated with a clear water based lacquer that protects it from dust, debris, and moisture. This water based finish allows the wood to breathe and the beautiful natural grain to show through while the UV resistant paint preserves it.