EPS Polystyrene Cavity Closers

EPS Polystyrene Cavity Closers are essential building components designed to close the gap between the inner and outer leaves of cavity walls, typically around window and door openings. Made from expanded polystyrene (EPS), these closers provide excellent thermal insulation, helping to maintain continuous thermal protection and reduce heat loss around openings.

EPS cavity closers are lightweight, easy to handle, and can be easily trimmed on site to fit various cavity widths, commonly 100mm and 150mm. They offer a robust and effective solution for preventing cold bridging, moisture ingress, and air leakage, thereby enhancing the overall energy efficiency and airtightness of the building envelope.

These closers are suitable for use in masonry, timber frame, and steel frame constructions. Their straightforward installation and compliance with building regulations make them a popular choice for modern construction projects focused on energy conservation and durability.

Key Characteristics

• Made from expanded polystyrene (EPS) providing excellent thermal insulation
• Designed to close cavity gaps around window and door openings
• Lightweight and easy to handle on site
• Easily trimmed to fit common cavity widths, such as 100mm and 150mm
• Prevents cold bridging, moisture ingress, and air leakage
• Enhances the energy efficiency and airtightness of buildings
• Suitable for use in masonry, timber frame, and steel frame constructions
• Robust and durable for long-lasting performance
• Simple and quick to install, saving time on site
• Compliant with current building regulations and standards