Western Australian Consolidated Regulations Western Australian Consolidated Regulations (1) A workplace or a
part of a workplace that has the features mentioned in subregulations (2)
and (3) is an enclosed workplace for the purposes of this Subdivision.
(2) An enclosed
workplace is covered by a roof or a part of a roof.
(3) An enclosed
workplace is configured so that the total vertical surface area of the solid
material in the walls is more than 50% of the notional vertical surface
area of the place as assessed in accordance with regulation 3.44AB.
(4) The total vertical
surface area of the solid material in the walls is to be assessed
by —
(a)
multiplying the following —
(i)
the length of each wall under the roof or the part of a
roof plus the length of each wall and each section of a wall that is
one metre or less beyond the perimeter of the roof or the part of a roof
when measured horizontally from the perimeter of the roof or the part of the
roof;
(ii)
the actual height of the walls and wall sections
mentioned in subparagraph (i);
and
(b)
deducting the total vertical surface area of the open parts of the walls or
wall sections mentioned in paragraph (a)(i).
(5) The total vertical
surface area of solid material in a wall is to be assessed as if each window,
door or vertical retractable covering in or adjacent to the wall —
(a) is
closed; and
(b)
forms part of the wall.
(6) A place is not an
enclosed workplace for the purposes of this Subdivision if it is covered by a
roof or a part of a roof and is bounded by only —
(a) one
straight wall; or
(b)
2 straight walls that are set in an angle of 90 degrees or more.
(7) A part of a
workplace may be an enclosed workplace even though —
(a) it
is part of a workplace that is not an enclosed workplace; or
(b) it
is part of another part of a workplace that is not an enclosed workplace.
[Regulation 3.44AA inserted in Gazette
7 Nov 2008 p. 4823-4.]