Technical Booklet E Fire Safety·Page 11·34
Regulation 34: Internal Fire Spread – Linings
Internal lining materials must resist flame spread over their surfaces, and those in circulation spaces must have low rates of heat release or fire growth when ignited.
To inhibit the spread of fire within a building the internal linings shall—
(a) offer adequate resistance to the spread of flame over their surfaces; and
(b) where they are located in a circulation space, have a low rate of heat release or a low rate of fire growth when ignited.
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