Cavity Trays Limited manufactures pre-formed cavity closers that are multi-functional, addressing reveal-closing, damp-protection, thermal-enhancement and fire-spread prevention measures.
The fire-integrity levels are expressed as a suffix. Cavi 60 signifies 60mins of fire integrity, with various Cavi levels up to Cavi 240. All closers meet or exceed the current Building Regulations.
The Cavi 60 WCA is a 60min fire-rated closer for wide cavity applications. The heavy-duty closer accommodates cavity widths up to 170mm.
The Cavi 60 SAF Barrier Stop is a one-piece sloping sleeved non-combustible cavity stop (sock) offering acoustic suppression and fire-integrity compartmenting within wider cavities. Similar stops are available with ratings up to Cavi 240, for use with cavity widths up to 200mm.
The Cavi 240 Type PWIB is a one-piece multi-function vertical integrity stop for use at party-wall intersections. Models are available to suit corners and wall junctions.
In addition to a wide range of standard cavity closers and fire stops, the company manufactures acoustic barriers for incorporation within cavities up to 200mm wide.
The Continuity Closer has a stepped insulating core. It closes the reveal cavity but additionally extends further inwardly, so it interfaces with the adjacent cavity insulation.