Fixing and buying guide

Use this buying guide for VELUX Insulation Collar 134x140cm BDX UK08 2000 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 134×140cm for timber framing. Prevents air leaks and moisture ingress around wooden beams in roof and wall construction. Suitable for lengths up to 4m.