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Roof Coatings

HydroStop® 3-Course System


Foundation Coat: HydroStop® PremiumCoat Foundation Coat is the foundation coat of the HydroStop® PremiumCoat® System, used in conjunction with PremiumCoat® Finish Coat and PremiumCoat® Fabric. It is a water-based acrylic base coat that is tinted green to distinguish it from the Finish Coat to spot substrate not yet covered.

Fabric Coat: HydroStop® PremiumCoat Fabric is a tough, non-woven, stitch-bonded heat-set polyester designed for various roofing and flashing applications. It acts as a reinforcing material that strengthens your liquid-applied roofing system.

Finish Coat (2 coats): HydroStop® PremiumCoat® Finish Coat is the finish coat of the HydroStop® PremiumCoat System, used in conjunction with PremiumCoat Foundation Coat and PremiumCoat Fabric. It is a water-based acrylic topcoat with UV resistance and low VOCs.

Benefits to a HydroStop® System:

  • Reduction of greenhouse gas emissions
  • Divert at least 50% of construction and demolition debris
  • Introduce cost-effective, innovative strategies, such as highly reflective roofs to minimize consumption of energy
  • Reduce tear-offs
  • Can adhere to a variety of existing roof substrates, including metal, asphaltic, single ply, and concrete
  • No heavy equipment
  • No solvents
  • No building closures

American WeatherStar System


All seams, transitions, penetrations, drains, and other flashing details are waterproofed with Urethane Brush-Grade 522.

Base Coat: A base coat application of Aromatic Urethane 520 provides the system with a durable, flexible, and fully-adhered foundation membrane.

Top Coat: A top coat application of Silicone 410 or High-Solids Silicone 412 forms a seamless, rubber-like membrane that provides unsurpassed UV protection, reflectivity, and resistance to ponding water.

Benefits to an American WeatherStar System:

  • Half the cost of conventional roof replacement
  • Stops leaks and improves existing roof performance
  • Increases the lifespan of commercial flat roofs
  • Improves energy efficiency
  • Significantly reduces maintenance costs
  • Highly resistant to ponding water
  • Industry leading durability, reflectivity, and UV stability
  • Cures to form a seamless and watertight membrane
  • Excellent adhesion to a variety of flat roof substrates
  • Minimal disruption to business
  • Long-term NDL (no dollar limit) warranties available

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