Div. B › Part 3 › 3.2 › 3.2.2 — Building Size and Construction Relative to Occupancy

3.2.2.66 — Group F, Division 1, 1 Storey

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(1) A building classified as Group F, Division 1 is permitted to be of combustible construction or noncombustible construction used singly or in combination provided,

(a) it is not more than 1 storey in building height, and

(b) it has a building area not more than 800 m2.

OBC Definitions

Defined terms on this page

building area

means the greatest horizontal area of a building above grade, (a)within the outside surface of exterior walls, or (b)within the outside surface of exterior walls and the centre line of firewalls.

building height

means the number of storeys contained between the roof and the floor of the first storey.

combustible

means that a material fails to meet the acceptance criteria of CAN/ULC-S114, “Test for Determination of Non-Combustibility in Building Materials”.

combustible construction

means a type of construction that does not meet the requirements for noncombustible construction or encapsulated mass timber construction.

noncombustible

means that a material meets the acceptance criteria of CAN/ULC-S114, “Test for Determination of Non-Combustibility in Building Materials”.

noncombustible construction

means a type of construction in which a degree of fire safety is attained by the use of noncombustible materials for structural members and other building assemblies.

storey

means , except for the purposes of Part 7 of Division B, the portion of a building, (a)that is situated between the top of any floor and the top of the floor next above it, or (b)that is situated between the top of the floor and the ceiling above the floor, if there is no floor above it.

building

(a) a structure occupying an area greater than ten square metres consisting of a wall, roof and floor or any of them or a structural system serving the function thereof including all plumbing, works, fixtures and service systems appurtenant thereto,
(b) a structure occupying an area of ten square metres or less that contains plumbing, including the plumbing appurtenant thereto,
(c) plumbing not located in a structure,
(c.1) a sewage system, or
(d) structures designated in the building code; Act

construct

to do anything in the erection, installation, extension or material alteration or repair of a building and includes the installation of a building unit fabricated or moved from elsewhere; Act

construction

has a corresponding meaning to “construct”; Act

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