50-100mm Cavity Closure, 2.4m

Description

50–100mm Cavity Closure is a universal insulating closer designed to seal and close cavity walls around window and door openings. The adjustable profile allows it to fit cavity widths from 50mm up to 100mm, making it suitable for a wide range of domestic and commercial builds. It provides a thermal break to prevent cold bridging and helps meet Building Regulations for insulation and air-tightness.

Ideal for use in new-build masonry cavity walls and compatible with both uPVC and timber frame installations.

Key Features

• Adjustable to fit 50–100mm cavities
• 2.4m length suitable for standard openings
• Provides a thermal break to prevent heat loss
• Helps maintain airtightness around openings
• Rigid core insulation for long-term performance
• Suitable for brick, block and timber constructions

Benefits

• Reduces cold bridging and condensation risk
• Improves overall energy efficiency of the building
• Fast and easy to install on site
• Ensures clean, stable edges for window/door fitting
• Supports compliance with current building standards

Installation Tip: Fit cavity closure as the wall is built, ensuring the insulated core is positioned between inner and outer leaves to form a continuous thermal barrier