Premium Coating System
GAF HydroStop
A cost-effective, long-term solution for restoring structurally sound metal roofs — without a full tear-off.
What It Is
Restoration, not replacement
The HydroStop System is a GAF liquid-applied coating solution built specifically for structurally sound metal roofs that are aging, chalking, or starting to show early signs of wear. Instead of a costly tear-off and full re-roof, the system restores the existing metal surface with a fully adhered, seamless membrane.
It's applied directly over the prepared metal substrate in a straightforward, multi-step process — giving building owners a renewed roof without the disruption or cost of a total replacement.
Why Building Owners Choose It
Key benefits
- Restores structurally sound metal roofs without a full tear-off
- Seamless, fully adhered membrane with no seams to fail
- Significantly lower cost than a complete roof replacement
- Minimal disruption to building operations during application
- Backed by GAF's manufacturing and technical support
- Long-term protection against weathering and UV exposure
The System In Action
Real jobs, real process
Base & Fabric
Seamless Application
Details & Penetrations
Any Substrate
Watch It Go Down
See it applied
Is HydroStop right for your roof?
Send me the roof details and I'll tell you straight if this is the system that fits.
Contact Charles