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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.

  • 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.

Approved Document B Volumes 1 and 2, Appendix A (page 137, page 148)

Definitions are taken from Approved Document B (fire safety). Contains public sector information licensed under the Open Government Licence v3.0.

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