VELUX Insulation Collar 78x118cm BDX MK06 2000

Key features

• Sized for 78×118cm roof openings (MK06 windows)
• Creates secure thermal seal around window perimeter
• Compatible with FSC-certified timber and above
• Minimises heat loss and air infiltration
• Supports efficient loft insulation installation
• Designed for standard structural building applications

Specifications

Opening size

78cm × 118cm

Window type

MK06

Material compatibility

FSC-certified timber and above

Application

Roof window insulation collar

Installation

Follow VELUX manufacturer guidance

Product code

BDXMK062000

Description

The VELUX Insulation Collar is designed to create a snug, thermally efficient fit around roof window openings measuring 78×118cm. It forms a critical seal between your roof structure and insulation material, minimising heat loss and air infiltration at the window perimeter. Suitable for use with FSC-certified timber and above, the collar ensures consistent performance across standard loft installations. Install in accordance with VELUX guidance and current building practice for optimal thermal and structural performance.