The HydroStop® PremiumCoat® Roof System is a liquid-applied acrylic elastomeric system for recover and reroof applications. It can be installed over various types of existing roofs, including single ply, built-up, insulation board, structural concrete, and metal to help extend their life.*

When the system is installed with HydroStop® PremiumCoat® Finish Coat in a highly reflective color**, it can help you save on energy costs*** and can contribute toward satisfying credits under LEED® v3 and LEED® v4 (see the GAF LEED® playbook at for details).

What do you get when you install a HydroStop® PremiumCoat® Roof System?

Protection against the elements to help extend the life of many types of existing roofs*

Highly reflective finish coat color options to help save on energy costs***


Easy application

What DON’T you get?

No solvents because it is water based

No traditional roofing accessories required

No need to do a complete roof tear off when installed over a suitable existing roof system*

No heavy equipment and minimal tools required

See it in action – the HydroStop® PremiumCoat® Roof System is as easy to use as it looks.

* See HydroStop® PremiumCoat® Liquid Applied Roofing Application and Specifications Manual for Information

** HydroStop® PremiumCoat® Finish Coat (white and cotton colors) are Energy Star Certified (U.S. only) and rated by the Cool Roof Rating Council

***Energy cost savings are not guaranteed and the amount of savings may vary based on climate, utility rates, roof reflectance, insulation levels, HVAC equipment efficiency, and other factors.

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