The New Zealand Building Code section E2/AS1 (9.1.8.2) requires using a Cavity Closer as part of properly constructing a drained cavity wall.
The function of the cavity closer is to prevent vermin intrusion and to promote weather tightness by allowing drainage and air ventilation to dry the cavity should moisture breach the external cladding.
The Masons/Redway range of uPVC Cavity Closers has been designed to provide the ideal solution for architects, builders and installers to meet these requirements.
