Technical Booklet E Fire Safety·Page 123·4.43
Pipes penetrating fire separating elements
Pipes passing through fire separating elements must be sealed with either a tested proprietary sealing system or, alternatively, comply with size and material restrictions with fire-stopping or a non-combustible sleeve.
Where a pipe passes through a fire separating element it should be –
(a) provided with a suitable proprietary sealing system which has been shown by test to maintain the fire resistance of the fire separating element; or
(b) where a proprietary sealing system is not used –
(i) of a diameter not more than the relevant nominal internal diameter given in Table 4.8, with the opening as small as is practicable and fire-stopped around the pipe; or
(ii) of lead, aluminium, aluminium alloy, fibre-cement or uPVC, having a maximum internal diameter not more than 160 mm and be within a non-combustible sleeve [see Table 4.8 Note (1)] as shown in Diagram 4.10.
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