Instructions / Assembly
Care & Preventative
Maintenance
HydroStop® PremiumCoat® Liquid-Applied Roong (LAR) – Version 1.3
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The use of catch pans (including proper drainage of these pans or other means of protection)
may be used to protect the roofing membrane from exposure to grease, chemicals, and
other materials that would otherwise be expelled onto the roof surface. Prolonged exposure
to these materials can cause swelling and possible degradation of the roofing system if spills
are not removed in a timely manner.
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Check for signs of algae, mold, mildew or other plant growth on the roof, particularly in
shaded areas that hold water.
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Unprotected areas of the roofing system are more susceptible to damage from heavy foot
traffic and additional measures must be taken to avoid damage to the system. Contact
GAF at 1-800-ROOF-411 (1-800-766-3411) for recommendations where heavy foot traffic is
expected.
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If snow removal is necessary, use plastic shovels and be careful when working around
protrusions or other areas where detail work could be damaged. Snow blowers, picks, axes
and shovels with sharp edges must not be used on the roof.
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Remove foreign debris, such as glass, bolts, nails, screws, metal shavings, and any other
materials that may cause punctures or cuts to the liquid-applied coating or roofing system.
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Limit roof access. Most roof damage is caused by individuals that are not authorized to
access the roof, or by individuals that are not aware of the damage that can be caused when
proper precautionary procedures are not followed. Roof access should be strictly limited
to authorized personnel and outside personnel should be informed as to the precautions
necessary when accessing the roof. Make a log of all visitors and maintenance personnel
accessing the roof.
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Make sure that maintenance personnel are warned against dropping tools and equipment
on the coated roof surface in order to avoid puncturing the membrane. When servicing
the rooftop HVAC units, antennas, solar panels, satellite dishes, etc., care should be taken
when placing tools, metal doors, lids, pans, or sharp objects on the coating system surface.
When moving roof-mounted units or equipment over coated roofs, avoid damage by placing
smooth plywood over the coating membrane prior to moving any equipment.
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Repair of any damage caused by misuse of the roofing system is the responsibility of the
Building Owner. The Building Owner is also responsible for ensuring that any such damage
is properly repaired by either the original contractor of record or another GAF-certified
contractor. If timely repairs are not made to rectify mechanical damage or other misuse of
the roofing system, this can result in the need for major repairs or replacement of the roof or
roof coating system at the building owner’s sole expense.