Fixing and buying guide

Use this buying guide for VELUX Insulation Collar 55x98cm BDX CK04 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 55x98cm for CK04 roof windows. Timber-frame compatible insulation collar reduces heat loss and improves loft thermal performance in UK buildings.