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Insulated cavity closer for installation when masonry is complete.
An insulated cavity closer consisting of a strip of Rockwool insulation encapsulated in weather-resistant polyethylene within a rigid PVC-U profile.
RockReveal is designed to close cavities around windows and doors without the need to return the blockwork, and is installed after the masonry is complete.
F30/18 Cavity closers
F30/180 Cavity closers
|Standard product features|
RockReveal provides 60 minutes integrity and up to 60 minutes insulation, to BS 476-20.