Rock Roofs Orange County California

A proper rock roof installation isn’t just dumping gravel on your building. It’s a layered system where every component plays a specific role. We start with a structural assessment to verify your roof deck can handle the ballast weight. Then we install a single-ply waterproofing membrane—typically EPDM, TPO, or PVC depending on your building’s needs and budget. The membrane gets secured at the roof edges and around penetrations like vents or HVAC units, but it’s not fastened or glued to the deck itself. Next comes the ballast layer. We use river-washed stone or crushed gravel, usually 1.5 to 2.5 inches in diameter, spread evenly across the entire roof surface. The weight holds everything in place and protects the membrane from UV damage, physical impact, and temperature extremes. We also install proper edge details, drainage components, and walkway pads if your roof needs regular foot traffic for maintenance. Everything gets documented with photos showing coverage, ballast depth, and membrane condition—records that prove invaluable if you ever file an insurance claim or need future repairs. The entire installation can happen in almost any weather, and because we’re not using adhesives or heat welding, there’s minimal disruption to your building operations.