Roof coating is a fluid-applied acrylic, silicone, or polyurethane system rolled or sprayed over an existing membrane to stop leaks without a tear-off. We start with a roof condition survey, because coating over a wet substrate traps moisture and guarantees blistering.
Silicone coating holds up best on low-slope rooftops where ponding water sits after a storm. It resists UV degradation, stays flexible through freeze-thaw, and a reflective white finish lowers surface temperature, which cuts the cooling load on the floors below.
Acrylic elastomerics cost less and breathe well on built-up roof and modified bitumen assemblies, though they need a longer cure time. Polyurethane adds tensile strength and foot traffic resistance over an EPDM or TPO membrane that is still sound.
- Primer systems bond the new coating to a chalky or oxidized surface, which is why we never skip that step on a weathered rooftop.
- Seam and flashing reinforcement uses polyester fabric laid into the wet base coat before the finish coat goes down.
- Coverage rate is calculated per roofing square so the dry film thickness lands where the manufacturer's spec says it should.
- Cure time tracks humidity, so we schedule around the forecast instead of promising a same-day walk-on.
