Instructions / Assembly

Care & Preventative
Maintenance
HydroStop® PremiumCoat® Liquid-Applied Roong (LAR) – Version 1.3
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OVERVIEW
Due to its constant exposure to heat, cold, ultraviolet radiation, rain, snow, hail, high winds and/or
mechanical damage, a roof can be the most vulnerable component of a building’s exterior. Despite
these negative effects, long-term performance can be enhanced, and major roof problems avoided,
through correct design, quality materials, proper installation procedures and workmanship, and a
comprehensive roof maintenance program. The cost of a comprehensive maintenance program is
minimal compared to the cost of repairing and/or removing and replacing a damaged roofing system.
The roofing system is a critical asset in the overall building envelope, and should be treated as such.
Identifying and correcting potential problems early is paramount to ensuring that small problems do
not become major issues. It is also essential in maintaining the integrity of the roof, protecting the
building’s contents, and avoiding interruption of the building’s intended function. A thorough and
consistent maintenance schedule will not only extend the life of the roofing system and lower life
cycle and replacement costs, but will help protect other building components as well.
UNDERSTANDING THE IMPORTANCE OF PROPER ROOF MAINTENANCE AND REPAIR
Like all roofing systems, roofs that have been coated require regular maintenance and repair to
enhance long-term service life. The Roof Coatings Manufacturers Association (RCMA) recommends
that roofs and coatings be inspected twice each year, generally in the spring and fall, and after any
major storms or high speed wind events. Additional coating should be applied as necessary to repair
damage to the coating or underlying roofing substrate. Additional coating can also be applied where
the existing coating has worn away. Refer to the specific sections of this Manual for more information
on coating and re-coating applications.
GENERAL CARE & PREVENTATIVE MAINTENANCE
The following is a list of general care and maintenance recommendations that will help achieve
maximum performance from the roofing system.
• Provide proper drainage...to minimize standing water on the roof. Keep the roof surface
clean from leaves, pine needles, twigs, paper, accumulated dirt and other debris, which
tends to accumulate at and clog drains. Cut back trees or branches growing too close to the
roof. Ponding of water on the surface of the roofing system will increase the probability of
moisture entering the structure in the event of a puncture or other mechanical damage to
the roofing membrane.
• Check the building exterior...for settlement or movement. Cracks in the walls are a warning
of possible cracks in the roof substrate and flashing. Ensure that overhangs, cornices, fasciae,
and edging are in good condition.
• Avoid damaging the roofing system by exposing it to any of the following, which could cause
premature degradation of the coating or membrane:
• Liquids containing petroleum products
• Solvents
• Grease used for lubricating rooftop units or from restaurant vents
• Oils (new or old) used for air conditioning or compressor units
• Kitchen waste or other animal fats
• Chemicals