VELUX Vapour Barrier 134x140cm BBX UK08 0000

Key features

• 134×140cm sheet size for UK08 VELUX window openings
• Controls moisture and prevents condensation in roof spaces
• Protects timber structure and insulation performance
• Suitable for loft conversions and roof insulation projects
• Works with standard rafter spacing and construction methods

Specifications

Size

134×140cm

Product code

BBX UK08

Type

Vapour barrier membrane

Application

Roof spaces, loft conversions, insulation projects

Description

This VELUX vapour barrier is designed to control moisture movement in roof construction and loft conversion projects. The 134×140cm sheet size suits UK08 window openings and standard rafter spacing. Vapour barriers work alongside insulation to prevent condensation forming within the roof structure, protecting timber and reducing heat loss. Install on the warm side of insulation, typically between rafters and plasterboard, to manage moisture effectively and maintain building performance.