Minimum periods of fire resistance by building use and height

Table 4.2 NEW Minimum periods of fire resistance Purpose group of building | Minimum period (minutes) for elements of structure and other components of the building forming part of Basement storey+ including floor over | Ground or upper storey Depth (m) of basement | Height (m) of top floor above ground in building or separated part of building (1) More than 10 | Not more than 10 | Not more than 5 | More than 5 not more than 11 | More than 11 not more than 18 | More than 18 not more than 30 | More than 30 1 Residential (dwellings) – (a) flats (i) not sprinklered: 90 | Not relevant | 60 | 30* | 30* | 60(2)** | 60@ (ii) sprinklered(3): 90 | Not relevant | 30* | 30* | 60(2)** | 60@ | Not(4) Permitted (b) and (c) dwellinghouses: 90 | Not relevant | 60 | 30* | 30* | 60** | 60@ | Not(4) Permitted | 90** | Not relevant | Not(4) Permitted | 120** | Not relevant 2 Residential – (a) institutional(5): 90 | 60 | 30*## | 60 | 60 | 90 | 120# (b) other residential(6): 90 | 60 | 30* | 60 | 60 | 90 | 120# 3 Office – not sprinklered: 90 | 60 | 30* | 60 | 60 | 90 | Not permitted ssprinklered(3): 60 | 60 | 30* | 30* | 30* | 60 | 120# 4 Shop and commercial – not sprinklered: 90 | 60 | 60 | 60 | 60 | 90 | Not permitted sprinklered(3): 60 | 60 | 30* | 60 | 60 | 60 | 120# 5 Assembly and recreation – not sprinklered: 90 | 60 | 60 | 60 | 60 | 90 | Not permitted sprinklered(3): 60 | 60 | 30* | 60 | 60 | 60 | 120# 6 Industrial – not sprinklered: 120 | 90 | 60 | 90 | 90 | 120 | Not permitted sprinklered(3): 90 | 60 | 30* | 60 | 60 | 90 | 120# 7 Storage and other non-residential – (a) any building or part not described elsewhere – not sprinklered: 120 | 90 | 60 | 90 | 90 | 120 | Not permitted sprinklered(3): 90 | 60 | 30* | 60 | 60 | 90 | 120#