3.5.1
Test for Surface Dryness
Before application of insulation or membrane materials and starting work on
the area to be roofed, perform test for surface dryness in accordance with
the following:
a.
Foaming: When poured on the surface to which materials are to be
applied, one pint of asphalt when heated in the range of 176 to
204 degrees C (350 to 400 degrees F), shall not foam upon contact.
b.
Strippability: After asphalt used in the foaming test application
has cooled to ambient temperatures, test coating for adherence.
Should a portion of the sample be readily stripped clean from the
surface, do not consider the surface to be dry and do not start
application. Should rain occur during application, stop work and
do not resume until surface has been tested by the method above
and found dry.
3.5.2
Construction Monitoring
During progress of the roof work, Contractor shall make visual inspections
as necessary to ensure compliance with specified parameters. Additionally,
verify the following:
a. Equipment is in working order.
Metering devices are accurate.
b. Materials are not installed in adverse weather conditions.
c. Substrates are in acceptable condition, in compliance with
specification, prior to application of subsequent materials.
Nailers and blocking are provided where and as needed.
Insulation substrate is smooth, properly secured to its substrate,
and without excessive gaps prior to membrane application.
The proper number, type, and spacing of fasteners are installed.
Materials comply with the specified requirements.
All materials are properly stored, handled and protected from
moisture or other damages.
Asphalt is heated and applied within the specified temperature
parameters.
Hot asphalt application is provided uniformly for voidless
coverage and as necessary to ensure full adhesion of materials.
Materials are set in place while asphalt is within the specified
temperature range.
The proper number and types of plies are installed, with the
specified overlaps.
Applied membrane surface is inspected, cleaned, dry, and repaired
as necessary prior to cap sheet installation.
Membrane is without ridges, wrinkles, kinks, fishmouths, or other
voids or delaminations.
SECTION 07511
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