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2. Small atriums
2.1 Definition
Small atria are located in buildings where the highest floor is no higher than 8 m above the atrium level (R + 2 or R + 1 with basement). Their basic cross-section is at least 5 × 5 m.
SCROLL TO TOP2.2 Smoke extraction in small atriums
Smoke extraction is carried out :
or naturally through openings installed in the upper part of the atrium and representing a free area equal to 1/100 of the basic cross-section with a minimum of 2 m ...
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Small atriums
Bibliography
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Standards
- Fire safety systems (SSI) – Actuated safety devices (ASD) – Part 8: remote-controlled natural air supply vents for facades (Classification number: S 61-937-8) - NF S 61-937 - 10-10
- Fire safety systems – Comments and interpretations of standards NF S61-931 to NF S 61-939 (Classification index: S 61-949) - FD S61-949 - 11-95
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