Cavity closers are used to fill the gap or cavity around doors or windows in external walls. Fitting these improves thermal efficiency, prevents heat loss, and helps maintain the continuity of insulation. This improves a buildings energy efficiency and reduces heating costs in cooler months.
They are usually manufactured from mineral wool, expanded polystyrene or extruded polystyrene. These materials resist moisture and have good thermal properties. They are installed during the building process around openings for doors and windows.
In addition, cavity closers help reduce moisture within the cavity. Different types of closers are available, and some are manufactured for different cavity widths. Fitting the correct type of closer and following the manufacturer’s installation instructions are essential.
For your convenience, Bradfords can deliver insulation and other building materials directly to you. This saves handling and transporting time and ensures your new product arrives in great condition, ready for installation.