Section 11.1. General
11.1.1. Scope
11.1.1.1. Scope
(1)The scope of this Part shall be as described in Subsection 1.3.3. of Division A.
11.1.1.2. Definitions
(1)In this Part,
- Building system means a combination of elements or components that form a complete major division of construction↗ in the design of a building↗ or part of a building↗, including a structural or framing system, a waterproofing system, a drainage system, an exterior cladding system, a roofing system, a window system, a partition system, a corridor system, a stair system, a fire alarm and detection system, a sprinkler system or a heating, ventilation or air-conditioning system, a foundation system, a standpipe and hose system, a flooring system, a plumbing system, a sewage system or an electrical system.
11.1.2. Application
11.1.2.1. Extension, Material Alteration or Repair
(1)Where an existing building↗ is subject to extension, material alteration or repair,
(a)the proposed construction↗ shall comply with Section 11.3., and
(b)the performance level of the building↗ shall be evaluated and compensating construction↗ shall be undertaken in accordance with Section 11.4.
Section 11.2. Classification of Existing Buildings
11.2.1. Classification
11.2.1.1. Construction Index and Hazard Index
(1)Where proposed construction↗ will result in the change of major occupancy of all or part of an existing building↗ to another major occupancy, the building↗ shall be classified as to its,
(a)construction↗ on the basis of its construction index as provided for in this Part, including Table 11.2.1.1.-A, and (See Note A-11.2.1.1.(1)(a))
(b)occupancy on the basis of its hazard index as provided for in this Part, including Tables 11.2.1.1.-B to 11.2.1.1.-N.
(See Note A-11.2.1.1.(1)(b))
(2)Small or medium sized existing buildings↗ as determined in Tables 11.2.1.1.-B to 11.2.1.1.-N facing multiple streets may be assigned a hazard index credit of 1, which may be subtracted from the hazard index of the proposed major occupancy to reduce the additional upgrading required by Table 11.4.3.4.-A provided,
(a)the building↗ does not contain a Group B, Division 1, a Group C, or a Group F, Division 1 occupancy, and
(b)firefighting access complying with Articles 3.2.5.1. to 3.2.5.5. or Subsection 9.10.20. is provided.
(3)The requirements of Articles 2.2.2.3. to 2.2.2.8. and 3.2.2.20. to 3.2.2.92. do not apply to this Part.
(4)For the purpose of this Part, the calculation of the construction index and hazard index for a Group G major occupancy is permitted to be based on a Group F, Division 2 major occupancy.
Table 11.2.1.1.-A Construction IndexForming Part of Sentence 11.2.1.1.(1)|
|
| 3 h | 1.5 h | Noncombustible | 8(1) |
| 2 h | 1 h | Noncombustible | 7 |
| 1 h | 45 min | Noncombustible | 6 |
| 45 min | 0 h | Noncombustible | 5 |
| 45 min | 45 min | Heavy Timber | 5 |
| 45 min | 45 min | Combustible | 5 |
| 0 h | 0 h | Noncombustible | 4 |
| 45 min | 0 h | Combustible | 4 |
| 0 h | 0 h | Noncombustible | 3 |
| 30 min | 0 h | Combustible | 3 |
| 30 min | 0 h | Combustible | 2 |
| 0 h | 0 h | Combustible | 1(1) |
Notes to Table 11.2.1.1-.A:
(1)C.I. of 1 is lowest fire protection performance level and C.I. of 8 is highest.
Table 11.2.1.1.-B(1)(4) Hazard IndexForming Part of Sentences 11.2.1.1.(1) and (2)|
|
| 4 | 5 | 6 |
| 4 | 5 | 6 |
| 4 | 5 | 6 |
| 4 | 5 | 6 |
| 4 | 5 | 6 |
Notes to Table 11.2.1.1.-B:
(1)Building Size (Maximum)(2)(3)| Small |
| Medium |
| Large |
| H.I. = 7 |
(2)Sizes are based on building area and building height, unless noted.
(3)Building size is based on the existing building facing one street.
(5)Take lowest rating for H.I. from Table for major occupancy change.
(6)Building may have less than 40% of its area as 2 storeys for purposes as described in Clauses 3.2.2.21.(1)(c) and (d).
Table 11.2.1.1.-C(1)(4)(6) Hazard IndexForming Part of Sentences 11.2.1.1.(1) and (2)|
|
| 3 | 4 | 6 |
| 3 | 4 | 6 |
| 3 | 4 | 6 |
| 3 | 4 | 6 |
| 3 | 4 | 6 |
| 3 | 4 | 6 |
| 3 | 4 | 6 |
| 3 | 4 | 6 |
| 3 | 4 | 6 |
| 3 | 4 | 6 |
| 3 | 4 | 6 |
| 3 | 4 | 6 |
| See Group E |
| 3 | 4 | 6 |
| 3 | 4 | 6 |
| 3 | 4 | 6 |
| 3 | 4 | 6 |
| 3 | 4 | 6 |
| 3 | 4 | 6 |
| 3 | 4 | 6 |
| 3 | 4 | 6 |
| 3 | 4 | 6 |
| 3 | — | — |
| 3 | 4 | 6 |
| 3 | 4 | 6 |
| 3 | 4 | 6 |
| 3 | 4 | 6 |
Notes to Table 11.2.1.1.-C:
(1)Building Size (Maximum)(2)(3)| Small |
| Small |
| Medium |
| Large |
| H.I. = 7 |
(2)Sizes are based on building area and building height, unless noted.
(3)Building size is based on the existing building facing one street.
(5)Take lowest rating for H.I. from Table for major occupancy change.
(6)Buildings which exceed 3 storeys in building height and are of combustible construction shall be sprinklered.
Table 11.2.1.1.-D(1)(4) Hazard IndexForming Part of Sentences 11.2.1.1.(1) and (2)|
|
| 3 | 4 | 6 |
| 3 | 4 | 6 |
| 3 | 4 | 6 |
| 3 | 4 | 6 |
| 3 | 4 | 6 |
Notes to Table 11.2.1.1.-D:
(1)Building Size (Maximum)(2)(3)| Small |
| Medium |
| Large |
| H.I. = 7 |
(2)Sizes are based on building area and building height, unless noted.
(3)Building size is based on the existing building facing one street.
(5)Take lowest rating for H.I. from Table for major occupancy change.
Table 11.2.1.1.-E(1)(3) Hazard IndexForming Part of Sentences 11.2.1.1.(1) and (2)|
|
| 2 | 3 | 5 |
| 1 | 3 | 5 |
| 1 | 3 | 5 |
| 1 | 3 | 5 |
| 1 | 3 | 5 |
Notes to Table 11.2.1.1.-E:
(1)Building Size (Maximum)(2)| Small |
| Medium |
| Large |
(2)Building size is based on the existing building facing one street.
(4)Take lowest rating for H.I. from Table for major occupancy change.
Table 11.2.1.1.-F(1) Hazard IndexForming Part of Sentences 11.2.1.1.(1) and (2)|
|
| 4 | 5 | 6 |
| 6 | 6 | 7 |
| 3 | — | — |
Notes to Table 11.2.1.1.-F:
(1)Building Size (Maximum)(2)| Small |
| Small |
| Medium |
| Large |
| H.I. = 7 |
| H.I. = 7 |
(2)Sizes are based on building area and building height, unless noted.
(3)When the size of a building falls into more than one category, the H.I. for the least restrictive is permitted to be used.
(4)Minimum security means occupants free to exit building in a fire emergency.
(5)Detention occupancy with any H.I. shall be sprinklered.
Table 11.2.1.1.-G(1)(4) Hazard IndexForming Part of Sentences 11.2.1.1.(1) and (2)|
|
| 4 | 5 | 7 |
| 4 | 5 | 6 |
| 3 | 4 | 6 |
| 4 | 5 | 7 |
| 3 | 4 | 6 |
| 3 | — | — |
Notes to Table 11.2.1.1.-G:
(1)Building Size (Maximum)(2)(3)| Small |
| Small |
| Medium |
| Medium |
| Large |
| H.I. = 7 |
(2)Sizes are based on building area and building height, unless noted.
(3)Building size is based on the existing building facing one street.
(5)When the size of a building falls into more than one category, the H.I. for the least restrictive is permitted to be used.
(6)Immobile means patients are attached to life support systems and cannot be moved. Non-Ambulatory means patients are confined to bed and require transportation. Ambulatory means patients may walk on their own.
(7)Care and treatment occupancy with any H.I. shall be sprinklered.
Table 11.2.1.1.-H(1) Hazard IndexForming Part of Sentences 11.2.1.1.(1) and (2)|
|
| | |
| 3 | 4 | 6 |
| 4 | 5 | 6 |
| 3 | 4 | 6 |
| | |
| 3 | 4 | 6 |
| 4 | 5 | 6 |
| | |
| 3 | 4 | 6 |
| 4 | 5 | 6 |
Notes to Table 11.2.1.1.-H:
(1)Building Size (Maximum)(2)(3)| Small |
| Medium |
| Large |
| H.I. = 7 |
(2)Sizes are based on building area and building height, unless noted.
(3)Building size is based on the existing building facing one street.
(4)When the size of a building falls into more than one category, the H.I. for the least restrictive is permitted to be used.
(5)Care occupancy with any H.I. shall be sprinklered.
(6)Non-Ambulatory means patients are confined to bed and require transportation. Ambulatory means patients may walk on their own.
Table 11.2.1.1.-I(1) Hazard IndexForming Part of Sentences 11.2.1.1.(1) and (2)|
|
| 3 | 4 | 6 |
| 3 | — | — |
| 3 | 4 | 6 |
| 3 | 4 | 6 |
| 3 | 4 | 6 |
| 3 | 4 | 6 |
| 3 | 5 | 6 |
| 2 | 2 | — |
| 3 | — | — |
| 4 | 5 | 7 |
| 3 | 4 | 6 |
| 3 | — | — |
| 2 | — | — |
| 3 | 4 | 6 |
| 3 | — | — |
| 3 | 4 | 6 |
Notes to Table 11.2.1.1.-I:
(1)Building Size (Maximum)(2)(3)| Small |
| Small |
| Medium |
| Large |
| H.I. = 7 |
| H.I. = 7 |
(2)Sizes are based on building area and building height, unless noted.
(3)Buildings which exceed 3 storeys in building height and are of combustible construction shall be sprinklered.
(4)Take lowest rating for H.I. from Table for major occupancy change.
Table 11.2.1.1.-J(1)(4)6) Hazard IndexForming Part of Sentences 11.2.1.1.(1) and (2)|
|
| 3 | 3 | 5 |
| 3 | 4 | 5 |
| 3 | 4 | 5 |
| 3 | 4 | 5 |
| 3 | 4 | 5 |
| 3 | 3 | 5 |
| 3 | 4 | 5 |
| 3 | 4 | 5 |
| 3 | 3 | 5 |
| 3 | 4 | 5 |
| 3 | 3 | 5 |
| 3 | 4 | 5 |
| 3 | 4 | 5 |
| 4 | 5 | 6 |
| 3 | 4 | 5 |
| 3 | 4 | 5 |
| 4 | 4 | 5 |
| 3 | 4 | 5 |
| 4 | 4 | 5 |
| 3 | 4 | 5 |
| 3 | 4 | 5 |
| 4 | 5 | 6 |
| 3 | 3 | 5 |
| 3 | 3 | 5 |
| 3 | 3 | 5 |
| 3 | 4 | 5 |
| 3 | 4 | 5 |
| 3 | 4 | 5 |
| 3 | 4 | 5 |
| 3 | 4 | 5 |
| 4 | 5 | 6 |
| 3 | — | — |
| 3 | 4 | 5 |
| 3 | 4 | 5 |
| 3 | 4 | 5 |
| 3 | 4 | 5 |
| 3 | 4 | 5 |
Notes to Table 11.2.1.1.-J:
(1)Building Size (Maximum)(2)(3)| Small |
| Small |
| Medium |
| Large |
| H.I. = 6 |
| H.I. = 7 |
(2)Sizes are based on building area and building height, unless noted.
(3)Building size is based on the existing building facing one street.
(5)When the size of a building falls into more than one category, the H.I. for the least restrictive is permitted to be used.
(6)Buildings which exceed 3 storeys in building height and are of combustible construction shall be sprinklered.
Table 11.2.1.1.-K(1)(4)(6) Hazard IndexForming Part of Sentences 11.2.1.1.(1) and (2)|
|
| 4 | 5 | 7 |
| 3 | 4 | 6 |
| 4 | 5 | 7 |
| 3 | 3 | 5 |
| 4 | 5 | 7 |
| 3 | 4 | 5 |
| 4 | 5 | 7 |
| 4 | 5 | 7 |
| 3 | 4 | 6 |
| 3 | 4 | 6 |
| 3 | 4 | 6 |
| 4 | 5 | 7 |
| 3 | 4 | 6 |
| 4 | 5 | 7 |
| 3 | 4 | 6 |
| 3 | 3 | 5 |
| 3 | 4 | 6 |
| 3 | — | — |
| See Group D |
| 3 | 4 | 5 |
| 4 | 5 | 7 |
| 3 | 4 | 6 |
| 3 | 4 | 6 |
| 3 | 4 | 6 |
| 3 | 4 | 6 |
| 3 | 4 | 6 |
| 3 | 4 | 6 |
| 3 | 4 | 6 |
| 3 | 4 | 6 |
| 4 | 4 | 6 |
| 3 | 4 | 6 |
| 4 | 5 | 7 |
| 3 | 3 | 6 |
| 3 | 4 | 6 |
| 4 | 5 | 7 |
| 4 | 4 | 6 |
| 3 | 4 | 6 |
| 3 | 3 | 5 |
| 4 | 5 | 7 |
| 3 | 4 | 6 |
| 3 | 4 | 6 |
| 4 | 5 | 7 |
| 4 | 5 | 7 |
| 4 | 4 | 6 |
| 3 | 4 | 6 |
| 3 | 4 | 6 |
Notes to Table 11.2.1.1.-K:
(1)Building Size (Maximum)(2)(3)| Small |
| Small |
| Medium |
| Large |
| H.I. = 7 |
(2)Sizes are based on building area and building height, unless noted.
(3)Building size is based on the existing building facing one street.
(5)When the size of a building falls into more than one category, the H.I. for the least restrictive is permitted to be used.
(6)All buildings 1 500 m2 and over are to be sprinklered.
Table 11.2.1.1.-L(1)(4)(5) Hazard IndexForming Part of Sentences 11.2.1.1.(1) and (2)|
|
| 3 | 6 | 8 |
| 3 | 6 | 8 |
| 3 | 6 | 8 |
| 3 | 6 | 8 |
| 3 | 6 | 8 |
| 3 | 6 | 8 |
| 3 | 6 | 8 |
| 3 | 6 | 8 |
| 3 | 6 | 8 |
| 3 | 6 | 8 |
| 3 | 6 | 8 |
| 3 | 6 | 8 |
| 3 | 6 | 8 |
| 3 | 6 | 8 |
| 3 | 6 | 8 |
| 3 | 6 | 8 |
| 3 | 6 | 8 |
| 3 | 6 | 8 |
| 3 | 6 | 8 |
| 3 | 6 | 8 |
| 3 | 6 | 8 |
| 3 | 6 | 8 |
| 3 | 6 | 8 |
| 3 | 6 | 8 |
Notes to Table 11.2.1.1.-L:
(1)Building Size (Maximum)(2)| Small |
| Medium |
| Large |
(2)Sizes are based on building area and building height.
(3)When the size of a building falls into more than one category, the H.I. for the least restrictive is permitted to be used.
(4)All buildings 1 500 m2 and over are to be sprinklered.
(5)All floor assemblies shall be fire separations.
Table 11.2.1.1.-M(1)(4)(6) Hazard IndexForming Part of Sentences 11.2.1.1.(1) and (2)|
|
| 3 | 5 | 6 |
| 3 | 4 | 5 |
| 3 | 5 | 6 |
| 3 | 5 | 6 |
| 3 | 4 | 5 |
| 3 | 5 | 7 |
| 3 | 5 | 6 |
| 3 | 4 | 5 |
| 2 | 3 | 4 |
| 3 | 4 | 5 |
| 3 | 4 | 5 |
| 3 | 5 | 6 |
| 3 | 5 | 6 |
| 3 | 4 | 5 |
| 3 | 5 | 6 |
| 3 | 4 | 5 |
| 3 | 5 | 6 |
| 3 | 4 | 5 |
| 3 | 4 | 5 |
| 3 | 4 | 5 |
| 2 | 3 | 4 |
| 3 | 5 | 6 |
| 3 | 5 | 6 |
| 3 | 5 | 6 |
| 3 | 4 | 5 |
| 3 | 3 | — |
| 3 | 5 | 6 |
| 3 | 5 | 6 |
| 3 | 4 | 5 |
| 3 | 5 | 6 |
| 3 | 5 | 6 |
| 3 | 4 | 5 |
| 3 | 5 | 6 |
| 3 | 5 | 6 |
| 3 | 5 | 6 |
| 3 | 5 | 6 |
| 3 | 5 | 6 |
| 3 | 5 | 6 |
Notes to Table 11.2.1.1.-M:
(1)Building Size (Maximum)(2)(3)| Small |
| Medium |
| Medium |
| Large |
| H.I. = 7 |
(2)Sizes are based on building area and building height, unless noted.
(3)Building size is based on the existing building facing one street.
(5)When the size of a building falls into more than one category, the H.I. for the least restrictive is permitted to be used.
(6)All buildings 1 500 m2 and over are to be sprinklered.
Table 11.2.1.1.-N(1)(4) Hazard IndexForming Part of Sentences 11.2.1.1.(1) and (2)|
|
| 2 | 2 | 3 |
| 2 | 3 | 4 |
| 2 | 3 | 4 |
| 2 | 3 | 4 |
| 2 | 3 | 4 |
| 3 | 4 | 5 |
| 3 | 3 | — |
| 2 | 3 | 4 |
| 2 | 3 | 4 |
| 2 | 3 | 4 |
| 2 | 3 | 4 |
| 2 | 3 | 4 |
| 2 | 3 | 4 |
Notes to Table 11.2.1.1.-N:
(1)Building Size (Maximum)(2)(3)| Small |
| Medium |
| Medium |
| Large |
| H.I. = 5 |
| H.I. = 6 |
(2)Sizes are based on building area and building height, unless noted.
(3)Building size is based on the existing building facing one street.
(5)When the size of a building falls into more than one category, the H.I. for the least restrictive is permitted to be used.