Technical Booklet E Fire Safety·Page 17·0.12
Cavity barriers
Cavity barriers limit concealed spaces within construction and subdivide them to prevent hidden spread of smoke and flame along pathways that could bypass fire-resisting construction.
Cavity barriers – concealed and extensive spaces within construction provide a ready route for the hidden spread of smoke and flame. The objectives of cavity barriers are to limit the extent of such spaces and to subdivide them where they would otherwise form a pathway around fire-resisting construction.
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