How and where to use guide
VELUX Insulation Collar 134x98cm BDX UK04 2011
Where to install
Install the insulation collar in loft conversion and new build projects where VELUX roof windows are fitted. The collar sits around the window opening to bridge the gap between the window frame and the surrounding roof structure, preventing cold air infiltration and heat loss through the thermal weak point created by the window installation.
- Loft conversion projects requiring thermal performance
- New build properties with roof window installations
- Any loft space where VELUX roof windows are being fitted
- Works with standard UK roof opening dimensions
Installation and positioning
The collar features an adjustable design that allows you to secure it firmly around the loft area surrounding your roof window. The fiberglass construction with baked-on finish provides durability during installation and long-term use. Position the collar to create a complete thermal seal, ensuring it sits flush against the roof structure and window frame with no gaps that could allow draughts.
- Adjust the collar to fit your specific roof opening dimensions
- Ensure secure positioning with no gaps around the window perimeter
- Install as part of your complete VELUX roof tile system
- Check alignment before final fixing to guarantee thermal performance
Performance and maintenance
The fiberglass material with baked-on finish is designed for durability and consistent thermal performance over time. The collar requires minimal maintenance once installed. Periodically check that the collar remains securely positioned and that no gaps have developed around the window frame, particularly after extreme weather or seasonal changes that may cause minor structural movement.
- Fiberglass construction resists deterioration in loft environments
- Baked-on finish provides long-lasting protection
- Check positioning annually to maintain thermal seal integrity
- Replace if damage or gaps develop that compromise insulation
Compatibility and system integration
This collar is specifically designed to work with VELUX roof window systems and should be installed as part of a complete thermal envelope solution. For optimal energy efficiency and building regulation compliance in UK loft conversions, use the collar in conjunction with VELUX roof tiles and appropriate vapour control measures. Verify compatibility with your specific VELUX window model before ordering.
- Compatible with VELUX roof window systems
- Works alongside VELUX roof tile systems for complete thermal performance
- Part of a comprehensive thermal envelope strategy
- Supports UK building regulation energy efficiency requirements