Storey exit definition
Approved Document B2, ‘Fire safety: Buildings other than dwellinghouses’, defines a ‘storey exit’ as: 'A final exit, or a doorway that gives direct access into a protected stairway, firefighting lobby or external escape route. NOTE: If an institutional building is planned to enable progressive horizontal evacuation, a door in a compartment wall is considered a storey exit for the purposes of requirement B1.
The 2026 amendment to Approved Document B, Fire Safety, Volume 1: Dwellings, amends this to state: 'Storey exit: A final exit, or a doorway that gives direct access into a protected stairway, evacuation lift lobby within an evacuation shaft, firefighting lobby or external escape route. NOTE: If an institutional building is planned to enable progressive horizontal evacuation, a door in a compartment wall is considered a storey exit for the purposes of requirement B1.'
[edit] Related articles on Designing Buildings Wiki
Featured articles
Check out some of the best features and news from Designing Buildings as well as key stories from around the web.
ECA Edmundson apprentice of the year award
Finalists announced.
Major new study exposes serious knowledge gaps.
Generating energy from internal light as well as sunshine.
ECA welcomes plans to strengthen subcontractor quality control.
Combining mid-career qualifications with experience broadens career opportunities.
Why being a mentor can help your career.
Channel 4 broadcaster to host 125th anniversary ceremony.
Listed structures on the rail network
Heritage interests and operational requirements must be balanced.
Historic England publishes research into embodied carbon when retrofitting traditional buildings.
New Prime Minister delivers on ECA call for cut in electricity costs.
CIOB reacts to the announcement of Andy Burnham as Prime Minister.
Heritage and conservation science workforce survey - Have your say.