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Smoke and fire spread prevention in protected stairways
2.77NI-wide·Technical Booklet K Ventilation
Where ducts, etc. are provided in a dwelling with a protected stairway, precautions should be taken to avoid the possibility of the system allowing smoke or fire to spread into the stairway.
dwellingventilationfire-safetymeans-of-escapeDucts in protected stairways
2.96NI-wide·Technical Booklet K Ventilation
Where ducts, etc. are provided in a dwelling with a protected stairway, precautions may be necessary to avoid the possibility of the system allowing smoke or fire to spread into the stairway.
dwellingventilationfire-safety