Fixing and buying guide

Use this buying guide for VELUX Insulation Collar 134x98cm BDX UK04 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 for loft insulation in timber frame construction. 134×98cm BDX UK04 2000 grade material provides thermal performance and secure fit around rafters.