Fixing and buying guide

Use this buying guide for VELUX Insulation Collar 55x78cm BDX CK02 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 55x78cm for roof spaces. Fits CK02 2011 collar; suitable for timber grades FSC 32mm and above. Domestic and commercial use.