leading to the project facility warning of presence of flammable materials,
irritating fumes, and potential of overspray damage.
]3.2
SPECIAL PRECAUTIONS AND INSTRUCTIONS
3.2.1
Safe Working Load Limits
Do not place materials or equipment on the roof deck exceeding the
indicated live load limits of the roof construction.
3.2.2
Primers
Do not dilute primers or other materials unless required and recommended by
the manufacturer. Do not use cleaning solvents for thinning primers or
other materials.
3.2.3
Material Handling
Handle materials and containers during application work safely and in
accordance with recommendations of the manufacturer. Store liquids in
airtight containers and keep containers closed except when removing
materials. Do not use equipment or containers containing remains of
dissimilar materials or products.
3.2.4
Shoes
Wear clean, soft-soled shoes without heels while walking on roofing
surfaces during installation.
3.2.5
Fire and Explosion Hazards
Prohibit open flames, sparks, welding, and smoking in the application area.
Provide and maintain a fire extinguisher of appropriate type and size in
the application area.
3.3
ROOF AREA PREPARATION
3.3.1
Preapplication Inspection
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NOTE: Provide expansion joints in the roofing at
each expansion joint in the structure, where
substrate material changes, and at each intersection
where an L- or T-shaped roof deck changes direction.
Locate expansion joints at high points, where
practicable, and place on curbs above the water line.
NOTE: Clamping rings on in-roof drain receivers are
not required and should not be used with spray foam
roofing systems.
NOTE: Equipment should be mounted on curbs
integrally sealed with the roof system. Curbs
should be minimum of one foot high. If possible,
complete foam and elastomeric weather coating prior
to mounting equipment. Equipment mounted over roof
should have not less than 24 inches of clearance
between bottom of equipment and roof surface.
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SECTION 07570
Page 29
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