Silicone roof coating for commercial buildings

A silicone roof coating is a fluid-applied, 100% silicone membrane sprayed or rolled over an existing commercial roof to create a seamless waterproof surface. A properly installed silicone system lasts 15 to 20 years before it needs recoating, and it can be recoated indefinitely rather than torn off — which is why we warranty qualifying roofs for 10, 15 or 20 years against leaks.

No. In the large majority of commercial projects the existing roof stays in place and the coating is applied directly over it after cleaning and repairs. A tear-off is only necessary when the roof deck itself is structurally compromised or the insulation below the membrane is saturated — both of which we check during the free inspection before proposing a coating.

Yes — 100% silicone is the only common coating chemistry that withstands permanent ponding water without breaking down. Acrylic and some elastomeric coatings re-emulsify and soften when water stands on them for days, while silicone remains intact, which matters on the low-slope roofs common across Florida.

Florida Coating Pros offers 10, 15 and 20-year leak-free warranties covering both labor and materials on qualifying roofs. Warranty length depends on the condition of the existing roof, the substrate type and the mil thickness of the system specified — all of which are defined in writing in your proposal before work begins.

Most commercial roof coating projects are completed in three to ten working days, depending on square footage, the amount of seam and flashing repair required, and weather. Because there is no tear-off, the building stays open and occupied throughout — crews work entirely on the roof surface.

Often not. GacoFlex S4200 bonds directly to most substrates, and on weathered modified bitumen it typically needs only spot priming where the surface demands it. Skipping the primer step where it is genuinely not required cuts roughly 20% off installation time, which is fewer days of crews on your roof. TPO is the exception: it is a low-surface-energy membrane, so we run adhesion test patches and select a primer from the results rather than assuming one.

On a Florida building, noticeably — because you are changing what the roof does with the sun rather than adding insulation. A dark roof absorbs solar load and radiates it down into the space below; a reflective white surface rejects most of it before it becomes heat. The building stays cooler and the air conditioning works less, and lower energy use also means less of the air pollution and greenhouse gas that comes with generating it. We will not quote a percentage, because it depends on your insulation, HVAC and how the building is used.

GacoFlex S4200 is permitted for installation from 33°F and rising, which extends the working season at both ends. In Florida that is rarely the binding constraint, but it matters on a cold-snap morning and on our north Georgia work, where it is the difference between a scheduled job going ahead and slipping a week.