List of featured suppliers of WINDOW SUBFRAMES PVC-u Cavity Closer Combined on Building Products Index
A combination of PVC-U window subframes and cavity closer is a structure that allows for the installation of windows in a cavity wall. It consists of a PVC-U subframe, which acts as the support structure for the window, and a cavity closer, which seals the opening between the inner and outer walls. The combined unit is designed to improve energy efficiency, reduce noise transmission and prevent moisture ingress.