Classic Closures are manufactured from closed cell extruded polystyrene insulation and UPVC extrusion. They provide a simple but effective one piece solution to closing the cavity in new masonry walls.

Water resistant properties prevent any moisture tracking across the cavity without the use of a DPC. They are light to handle, yet robust, easily cut without the use of specialist tools or equipment. Waste is almost eliminated due to the unique way of joining two pieces together. Window and door openings are formed and closed efficiently eliminating the time and costly process of cutting blocks or bricks.

Classic Closures are suitable for use with timber, metal, PVC windows and door frames for 1st fix, 2nd fix and check reveal applications. They are manufactured to suit cavity widths of 50 - 250 mm.