Technical Booklet E Fire Safety·Page 116·Table 4.6, Item 9
Cavity barriers in rain screen cladding voids
Cavity barriers must be provided within the void behind rain screen cladding at every floor level and on compartment wall lines for buildings with a floor more than 18 m above ground level.
Within the void behind the external face of rain screencladding at every floor level, and on the line of compartment walls abutting the external wall, of buildings which have a floor more than 18 m above ground level
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