Div. B › Part 3 › 3.2 › 3.2.3 — Spatial Separation and Exposure Protection

3.2.3.11 — Low Fire Load, 1 Storey Building

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(1) An exposing building face of a building of low hazard industrial occupancy conforming to Article 3.2.2.82. is permitted to be of noncombustible construction without a fire-resistance rating provided,

(a) it is not a loadbearing wall, and

(b) the limiting distance is not less than 3 m.

OBC Definitions

Defined terms on this page

exposing building face

means that part of the exterior wall of a building that faces one direction and is located between ground level and the ceiling of its top storey or, where the building is divided into fire compartments, the exterior wall of a fire compartment that faces one direction.

fire-resistance rating

means the time in minutes or hours that a material or assembly of materials will withstand the passage of flame and the transmission of heat when exposed to fire under specified conditions of test and performance criteria, or as determined by extension or interpretation of information derived from that test and performance as prescribed in this Code.

industrial occupancy

means the occupancy or use of a building or part of a building for the assembling, fabricating, manufacturing, processing, repairing or storing of goods or materials.

limiting distance

means the distance from an exposing building face to a property line, to the centre line of a street, lane or public thoroughfare or to an imaginary line between two buildings or fire compartments on the same property, measured at right angles to the exposing building face.

loadbearing

means , when applied to a building element, subjected to or designed to carry loads in addition to its own dead load, but does not include a wall element subject only to wind or earthquake loads in addition to its own dead load.

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.

occupancy

means the use or intended use of a building or part of a building for the shelter or support of persons, animals or property.

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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