Article | REF: TBA3004 V2

ERP fire safety – Smoke control

Author: Williams PAUCHET

Publication date: November 10, 2018

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5. Staircase smoke extraction (DF 5)

Enclosed staircases can be de-ventilated by natural sweeping or overpressurization in relation to the adjacent volume(s).

By "natural sweep", we mean that at the top of the stairwells, there is a hatch or glazed opening that can be opened manually or controlled by the SSI.

Mechanical smoke extraction is strictly prohibited.

A non-enclosed staircase does not need to be cleared of smoke if the volumes with which it directly communicates (levels, rooms, corridors, etc.) are not required to be cleared of smoke.

For smoke-free areas, the staircase must be :

  • separated from lower levels by enclosure screens ;

  • The volume with which it communicates can be used to remove smoke from the upper...

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Staircase smoke extraction (DF 5)