3.3.13
Clean Up
Remove debris, scraps, containers and other rubbish and trash resulting
from installation of the roofing system from job site each day.
3.4
PROTECTION OF APPLIED ROOFING
3.4.1
Protection Against Moisture Absorption
When precipitation is imminent and at the end of each day's work, protect
applied roofing as follows:
[3.4.2
Water Cutoffs
**************************************************************************
NOTE: Include this paragraph when roof insulation
is a substrate for the modified bitumen sheet
roofing.
**************************************************************************
Straighten insulation line using loose-laid cut insulation sheets and seal
the terminated edge of modified bitumen roofing system in an effective
manner. [Seal off flutes in metal decking along the cutoff edge.] Remove
the water cut-offs to expose the insulation when resuming work, and remove
the insulation sheets used for fill-in.
]3.4.3
Temporary Flashing for Permanent Roofing
Provide temporary flashing at drains, curbs, walls and other penetrations
and terminations of roofing sheets until permanent flashings can be
applied. Remove temporary flashing before applying permanent flashing.
3.4.4
Temporary Walkways, Runways, and Platforms
Do not permit storing, walking, wheeling, and trucking directly on applied
roofing materials. Provide temporary walkways, runways, and platforms of
smooth clean boards, mats or planks as necessary to avoid damage to applied
roofing materials, and to distribute weight to conform to live load limits
of roof construction. Use rubber-tired equipment for roofing work.
[3.4.5
Glaze Coat
Light glaze coating of bitumen shall be used to waterproof roof areas
requiring extended time to complete. Glaze coating shall be at the
discretion of the Contracting Officer. When required bitumen glaze coat on
exposed felts shall be applied at a rate of 0.25 kg to 0.50 kg per square
meter (5 to 10 pounds per square). Lower application rates, in accordance
with membrane manufacturer's recommendations, may be required when modified
bitumen cap sheet surfacing is specified. Valleys and low areas that may
pond water shall receive glaze coating.
]3.5
FIELD QUALITY CONTROL
Perform field tests in the presence of the Contracting Officer.
Notify the
Contracting Officer one day before performing tests.
SECTION 07511
Page 30
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