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What You Need to Know about Hydrostop Roofing

What You Need to Know about Hydrostop Roofing

What You Need to Know about Hydrostop Roofing

Hydrostop is a roofing product from GAF that waterproofs every potential leak point on your commercial roof. Hydrostop roofing components work with existing roof materials to seal and waterproof your North Port business. Save on reroofing, tear-off and carting costs by keeping the roof you have. The HydroStop® PremiumCoat® System can solve most of your commercial roof dilemmas, all with one integrated process.

What HydroStop Is

Multiple layers are the secret to a secure, watertight bond with your existing roof. Say your building has built-up-roofing (BUR) that is getting well past its fail point. Consider that the existing substrate. Hydrostop is applied atop that:

  1. Foundation coat
  2. Non-woven polyester fabric — for roofs of any dimension, shape or pitch
  3. Foundation coat
  4. First finish coat
  5. Second finish coat


That is five additional layers of protection and waterproofing on top of your existing roof. Without having to tear off and cart away the old roof, you have saved your company time and money.

Where HydroStop Works

Just about any roofing structure can be safely and effectively sealed against water infiltration, thermal expansion and shrinking, and air infiltration:

  • Drains
  • Transitions
  • Expansion joints
  • Laps
  • Seams
  • Air conditioning curbs
  • Fasteners
  • Parapets
  • Skylights

Advantages of HydroStop

Using this product, a commercial roofer can seal and coat an entire commercial roof in very quick order, often for significantly less than half the price of a complete reroof job. Other advantages of HydroStop:

  • Can contribute toward LEED® points
  • Has very low volatile organic compounds (VOCs)
  • Provides superior ultraviolet light resistance
  • Weather resistant
  • Keep your building open during work
  • Easy maintenance by your own building crew
  • Unlimited lifespan with periodic recoating
  • No accessories or add-ons needed
  • Seamless
  • Self-flashing
  • Hydrostop liquid is brush-applied

The Hydrostop system provides high solar reflectivity, helping to drive down cooling costs in sunny Florida.

Built to Last

In Florida, any building owner or facility manager needs to consider our unique weather extremes. HydroStop is FM Class 1 4470 approved. This means it meets standards in tests for:

  • Water leakage
  • Wind uplift
  • Hail damage
  • Foot traffic


It also has earned a Class A Fire Rating under the following standards:

  • ASTM E108
  • ASTM D6083
  • ASHRAE 90.1


HydroStop is ENERGY STAR® certified (U.S. only). With HydroStop, your North Port business’s roof could last fifty years with minimal maintenance and reapplication. Contact Mark Kaufman Roofing today to find out more about the many benefits of HydroStop roofing.

Read: What You Need To Know About Standing Seam Roofing

We Won’t Be Beaten on Price!

High-quality commercial roofing doesn’t mean exorbitant prices.