Fixing and buying guide

Use this buying guide for VELUX Insulation Collar 66x118cm BDX FK06 2011 before ordering. What to check before buying: - Confirm dimensions and compatibility with adjoining components. - Verify fixings, adhesives, and accessories required for installation. - Match quantity to project area and allow for cuts/wastage. - Product overview: VELUX Insulation Collar for roof windows up to 66×118cm. Fibre-reinforced polymer construction seals against heat loss and moisture ingress on timber grades F18 and above.