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Ducted air circulation systems in dwellinghouses with storeys over 4.5 m
2.15NI-wide·Technical Booklet E Fire Safety
In a dwellinghouse with a storey more than 4.5 m above ground level, any system of ducted air circulation should – (a) not be fitted with transfer grilles between any room and a protected stairway; (b
dwellingfire-safetyhigh-riseventilationProtected lobbies and protected corridors
2.69NI-wide·Technical Booklet E Fire Safety
A protected lobby or protected corridor should be provided to every escape stairway on every storey in a building other than the top storey where – (a) the escape stairway is the only escape stairway
fire-safetymeans-of-escapestairsventilationMechanical ventilation systems under fire conditions
2.101NI-wide·Technical Booklet E Fire Safety
A mechanical ventilation system should be designed so that in a fire either – (a) the air movement in the building is directed away from escape routes; or (b) the system is closed down. Where the syst
fire-safetyventilationmeans-of-escapeCavity plenum recirculating air distribution systems
4.41(vii)NI-wide·Technical Booklet E Fire Safety
where the cavity is used as a plenum – the relevant recommendations of BS 9999 5588-9 in relation to recirculating air distribution systems are complied with.
fire-safetyventilationnon-domesticVentilation ducts penetrating fire separating elements
4.44NI-wide·Technical Booklet E Fire Safety
Where a ventilation or air conditioning duct passes through a fire separating element it should comply with an appropriate method for maintaining the fire resistance of the wall, floor or barrier give
fire-safetyventilationOpen-sided car parks definition and requirements
4.50NI-wide·Technical Booklet E Fire Safety
A car park may be regarded as an open-sided car park for the purposes of Table 4.2 [i.e. Purpose Group 7(b)(i)] where, in addition to complying with paragraph 4.49 – (a) it has no basement storeys; (b
commercialfire-safetyventilationnon-domesticVentilation for non-open-sided car parks
4.51NI-wide·Technical Booklet E Fire Safety
Where a car park does not comply with the provisions of paragraph 4.50 it should not be regarded as open-sided for the purposes of Table 4.2 [i.e. it falls in Purpose Group 7(b)(ii)]. However, there i
commercialfire-safetyventilationnon-domesticMechanical ventilation system for car parks in fire conditions
(b)NI-wide·Technical Booklet E Fire Safety
a system of mechanical ventilation where – (i) the system is independent of any other ventilation system and designed to operate at 6 air changes per hour for normal extraction and at 10 air changes p
fire-safetyventilationnon-domesticSmoke and heat venting from basements
6.11NI-wide·Technical Booklet E Fire Safety
The build-up of smoke and heat as a result of a fire can seriously inhibit the ability of the Fire and Rescue Service to carry out rescue and firefighting operations in a basement. The problem can be
fire-safetyventilationBasement venting facility requirements
6.12NI-wide·Technical Booklet E Fire Safety
Venting facilities, connected directly to the external air, should be provided from every basement storey other than – (a) a basement in a building of Purpose Group 1(b) or (c); (b) a basement storey
fire-safetyventilationNatural venting requirements for basement smoke outlets
6.14NI-wide·Technical Booklet E Fire Safety
A basement storey may be ventilated by smoke outlets which should – (a) be sited at ceiling level within the space they serve; (b) have an aggregate free area of not less than 2.5% of the floor area o
fire-safetymeans-of-escapeventilationSmoke outlet discharge and shaft construction
6.15NI-wide·Technical Booklet E Fire Safety
Smoke outlets may discharge by means of windows, stall-board risers or pavement lights which can be opened or knocked out provided such covers are readily accessible to the Fire and Rescue Service. Sh
fire-safetyventilationstructuralMechanical venting for basements with sprinklers and heat-resistant systems
6.16NI-wide·Technical Booklet E Fire Safety
A basement may be ventilated by a mechanical air extraction system provided – (a) the basement has a sprinkler system fitted in accordance with Section 8 complying with the relevant recommendations of
fire-safetyventilation