NYC 9/11 Public Portal Document
L. SIDING AND
ROOFING ABATEMENT FOR
WORK ONLY (Not Applicable) DEMOLITION OF STRUCTURE
For removing roofing material
which contains ACM the
following practices are followed: contractor shall ensure that the
• Roofing material shall be removed
in an intact state to the
extent feasible.
• Wet methods shall be used to
remove
rendered not intact during removal, roofing materials that are not intact, or that will be
create safety hazards. unless such wet methods are not
feasible or will
• Cutting machines shall be
continuously misted during use, unless
determines that misting substantially a competent person
decreases worker safety.
• When removing built-up roofs
with
surface using a power roof cutter, allasbestos -containing
dust resulting from roofing felts and an aggregate
collected by a HEPA dust collector, the cutting operationshall be
or shall be HEPA vacuumed by
cut line. When removing built-up roofs with asbestos vacuuming along the
smooth surface using a power roof -containing roofing felts and a
shall be collected either by a cutter, the dust resulting from the
HEPA dust collector or HEPA cutting operation
or by gently sweeping and vacuuming along the cut line,
then
debris left along with cut line. carefully and completely wiping up the still-wet dust and
• Asbestos-containing material
that has been removed from a
thrown to the ground. Unless the roof shall not be dropped or
shall be lowered to the ground material is carried or passed to the ground by hand, it
via covered, dust-tight chute,
crane or hoist.
• Any ACM that is not intact
shall be lowered to the ground as
any event no later than the end soon as it practicable, but
of the work shift. While the
it shall either be kept wet,
placed in an impermeable waste material remains on the roof
sheeting. bag, or wrapped in plastic
• Intact ACM shall be lowered to the
later than the end of the work ground as soon as is practicable,
shift. but in any event no
• Upon being lowered, unwrapped
such manner so as to preclude material shall be transferred to a closed receptacle in
the dispersion of dust.
• Roof level heating and ventilation
air intake sources shall be
system shall be shut down. isolated or the ventilation
Notwithstanding any other provision of this
roofing less than 25 square fee in section, removal or repair of
area does not require use of sections of intact
wet methods or HEPA
vacuuming
NYC-WTC 000128582
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