Smoke extraction in enclosed horizontal corridors and halls accessible to the public (DF 6)
ERP fire safety – Smoke control

In the case of enclosed horizontal corridors with natural or mechanical smoke extraction, there is no obligation in the following cases:

• corridors with a total length of more than 30 m ;

• corridors served by pressurized staircases;

• corridors serving sleeping areas ;

• basement circulation.

Halls are considered to be corridors (section 9.1 of article [TBA 3 002] ). They...