(a)
Catch
platform. When a scaffold is erected over or near a space traversable
by workmen or the public, protection shall be provided underneath the scaffold.
Such protection shall consist of a suitable catch platform well supported and
without openings in the flooring or some other equally effective means of
overhead protection. Such platform shall be strong enough to afford protection
not only to those below, but also to the workmen above in case of a fall. Where
such platform extends from a building it shall slope toward the building and be
flush with the wall. In operations where considerable material is handled on
the scaffold, the outer edge of the catch platform shall be provided with a
fence or wire screen to prevent fallen objects from rebounding over the edge.
In order to provide proper protection for workers in case of fall, safety nets
as specified in this subsection shall be required directly below where workmen
are performing their duties. These net requirements shall be reflected in bid
specifications. This rule will apply to three stories or more in
height.
(b)
Overhead
protection. Where workmen are working above other workmen or where
there is a likelihood of objects falling from above, the latter workmen shall
be protected by plank, wire or expanded metal shields strong enough to catch
and retain any weight liable to fall from above. Such overhead protection shall
be located not more than ten feet above the platform or working floor. If wire
mesh or expanded metal is used the openings shall be not greater than 1/2 inch
and the construction shall be not less than No. 10 steel wire gauge for wire
and No. 13 U.S. gauge for expanded metal. If safety net protection is required,
above operation shall not be undertaken until the net is in place and has been
adequately secured and inspected by the Department.
(1) Nets shall extend 8 feet beyond the
perimeter of building directly below the workmen.
(2) The maximum mesh size of the nets shall
be 6 inches by 6 inches of 3/8 inch diameter, No. 1 grade, pure manila 1/4 inch
nylon or 5/16 inch polypropylene rope.
(c)
Successive scaffolds.
Where two or more separate scaffolds are used simultaneously one above the
other, overhead protection similar to that required in subsection (b) shall be
provided for the men on the lower scaffolds in addition to the catch
platform.
(d)
Sidewalk
protection. When construction operations are adjacent to a sidewalk,
alley, street or other thoroughfare which is not closed to traffic, a
substantial "sidewalk shed" or "bridge" shall be constructed.
(e)
Side screens. Whenever
the material on a scaffold is piled higher than the toeboard and when the
scaffold is suspended or built over exposed sidewalks, streets or other
thoroughfares, the openings between the toeboard and guardrail shall be covered
by means of expanded metal or wire netting of mesh not greater than 1/2 inch,
or other equivalent side screen may be provided.
(f)
Flues from stoves or salamanders.
In confined or unventilated areas in rooms or buildings under
construction or repairs where a stove, furnace or salamander, burning coal,
coke, gas or oil is used for the purpose of drying or heating, such stove shall
have a pipe or flue ventilated direct to the outside for the purpose of
removing obnoxious or poisonous gases, fumes or smoke. Each stove or salamander
shall be set on a noncombustible base of such a size as to extend outward a
distance of 3 feet in all directions from the stove or salamander. No stove or
salamander shall be located nearer than 5 feet from any wooden partition or
other combustible material.
(g)
Fire extinguishers. An approved type of fire extinguisher
shall be provided on all construction jobs over three stories in height. They
shall be of at least 1 gallon capacity and at least one extinguisher shall be
so located that the workmen need not go more than one story either up or down
to reach it. They shall be plainly marked and readily accessible.
(h)
Safe footing for workmen.
In order to assure safe footing for workmen who walk on structural
members, no employer shall erect any structural member with studs, reinforcing
shear connectors or similar projecting materials, unless adequate termporary
walking surfaces or decking are installed on such members prior to erection.
However, nothing in this section shall be construed to prohibit the attachment
of studs or other protrusions after the erection of all structural members or
forming or decking of a particular floor or deck level or span of a bridge or
area between traverse floor beams is completed.