2022 Manitoba Workplace Safety and Health Act and Regulation

Stability of adjoining building or structure
33.6(1) When a building or structure adjoins the demolition site and
the demolition work may affect its stability, an employer must
ensure that the demolition work is carried out in accordance with
procedures, as certified by a professional engineer, that safeguard
the stability of the adjoining building or structure.

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Workplace Safety And Health Regulation
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33.6(2) An employer must ensure that a copy of the procedures certified by
the professional engineer is kept at the demolition site at all times
when demolition work is in progress.
Ventilation, loads, removal of debris and chutes
33.7(1) When carrying out demolition work, an employer must ensure that
(a) adequate ventilation is provided for a machine powered by an
internal combustion engine that operates in an enclosed area;
(b) every floor, roof or other surface is of sufficient strength to
safely support any of the following loads:
(i) the load of a worker who is required or permitted to be on
it,
(ii) the load of any equipment, including powered mobile
equipment, placed on it;
(c) material or debris is removed promptly and is not allowed to
accumulate
(i) in an area that might result in the collapse of all or part of
the building or structure due to overloading, or
(ii) on the ground immediately outside of the building or
structure being demolished; and
(d) unless it is being demolished at the time, no wall or other part
of the building or structure is left unstable or in danger of
collapsing.
33.7(2) When demolishing a structure, an employer must provide a chute for
use in removing debris and dust if the dropping debris or dust creates
a risk to the safety or health of a worker or any other person.
33.7(3) An employer must ensure that a chute provided under subsection (2)
(a) is properly secured;
(b) has all of its openings adequately guarded;
(c) has placed adjacent to its outlet, in a conspicuous location, a
clearly visible and legible sign bearing the wording “DANGER,
NO ENTRY” in a minimum of 5 cm letters; and
(d) empties into an area that is appropriately barricaded to prevent
access by any person.

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Workplace Safety And Health Regulation
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33.7(4) An employer must ensure that
(a) workers and equipment are located clear of any falling
material or debris; and
(b) without limiting clause (a), a floor opening is adequately
covered to prevent material from falling below, if
(i) a wall that is within 3 m of the opening is being
demolished, and
(ii) there is a risk to the safety or health of a worker.