Universal 100 EPS Cavity Closer 50-100mm x 2.4m

The Universal 100 White EPS Cavity Closer is a rigid, insulated closer designed to provide a continuous thermal break and damp-proof barrier around window and door openings. Specifically engineered for smaller cavity widths, it effectively seals the gap between the inner and outer leaves of a wall to eliminate cold bridging. The profile consists of a durable uPVC casing filled with high-performance white expanded polystyrene (EPS) insulation. Its versatile design features pre-cut grooves that allow for quick and accurate on-site trimming to match the specific width of the cavity. By preventing moisture migration and significantly reducing heat loss at the reveals, it helps protect the internal structure from condensation and mould growth.

Benefits

• Eliminates cold bridging around structural openings to prevent internal damp and mould
• Features a multi-width design with clear indicators for easy on-site adjustment
• Fully compliant with Building Regulations Approved Documents C, L1, and L2
• Constructed from recycled uPVC for an environmentally conscious building solution
• Suitable for both masonry cavity walls and timber frame construction projects

Good to know

• Each individual length measures 2400mm (2.4m)
• This Universal 100 model is designed to accommodate cavity widths between 50mm and 100mm
• The white EPS insulation core has a thermal conductivity of 0.034 W/mK
• It provides a thermal resistance path of 0.58m²K/W, exceeding the minimum requirement of 0.45m²K/W
• Installation can be achieved by building the closer into the wall as work progresses or fixing it to the frame
• It is compatible with a wide range of window and door frame profiles