August 5, 20214 yr comment_21125 Hi all, OK so there is a protected stairwell in a modern school that has a small server room under the stairs. There is an air grill fitted which appears to be fire rated intumescent however, no dampers to prevent cold smoke transfer. Is this acceptable? Thanks Report
August 8, 20214 yr comment_21173 Not normally, as it opens onto an escape route it would be expected to have cold smoke protection. Report
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