1.5.3
Handling
Prevent damage to edges and ends of roll materials. Damaged materials
shall not be installed in the work. Select and operate material handling
equipment so as not to damage materials or applied roofing.
1.6
ENVIRONMENTAL REQUIREMENTS
Do not install roofing system when air temperature is below 4 degrees C (40
degrees F), during any form of precipitation, including fog, or when there
is ice, frost, moisture, or any other visible dampness on the roof deck.
Follow manufacturer's printed instructions for installation during cold
weather conditions.
[1.7
TORCH SAFETY
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NOTE: This requirement shall be retained when
membrane or flashing is torch applied.
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Take all precautions necessary to prevent ignition of combustible materials
during torch application of roofing. Flammable liquids shall not be stored
on the roof. Provide two fully charged minimum 6.5 kg (15 pound) CO2 fire
extinguishers in separate, easily accessible locations on the roof and
within 9 meters(30 feet) of torch work area at all times. Seal off voids
or openings in the substrate with non-combustible materials prior to
installing torch-applied materials in the area. When working around
intakes and openings, temporarily disconnect and block to prevent flame of
torch from being drawn into the opening. Provide non-combustible shielding
or flame guard protection where gaps or voids occur in the construction in
area of torch work.
1.7.1
Fire Watch
Provide a fire watch for a minimum of one hour after completion of all
torch work at the end of each work shift. Maintain the fire watch for
additional time required to ensure no potential ignition conditions exist.
Utilize heat sensing meters to scan for hot spots in the work. Do not
leave the rooftop unattended during breaks in work during a work shift.
Walk and scan all areas of application checking for hot spots, fumes, or
smoldering, especially at wall and curb areas, prior to departure at the
end of each work shift. Ensure any and all suspect conditions are
eliminated prior to leaving the site each work shift.
]1.8
SEQUENCING
Coordinate the work with other trades to ensure that components which are
to be secured to or stripped into the roofing system are available and that
permanent flashing and counterflashing are installed as the work
progresses. Ensure temporary protection measures are in place to preclude
moisture intrusion or damage to installed materials. [Application of
roofing shall immediately follow application of insulation as a continuous
operation. Roofing operations shall be coordinated with insulation work so
that all roof insulation applied each day is covered with roof membrane
installation the same day.]
SECTION 07550
Page 14
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