Silicone Roof Coating — Fluid-Applied Restoration in Orlando, FL

A roof qualifies for silicone restoration when it meets three conditions: the insulation is dry as confirmed by moisture core sampling, the existing membrane is structurally intact and adhered with no open seams or delaminated sections, and the deck is sound. Buildings that

The most common qualifying substrates on Orlando commercial buildings are: existing TPO that is 10-20 years old and in good membrane condition, modified bitumen cap sheet in fair-to-good surface condition, and spray polyurethane foam systems approaching their scheduled recoat interval. BUR surfaces can qualify with the right primer and base coat, but substrate variability is higher on BUR and we are more conservative in our assessment before committing to a warranted coating scope.

Orlando-specific timing considerations: many of the International Drive hotel properties, the Convention Center corridor office buildings, and the SODO and OIA airport-adjacent warehouse buildings had first-generation TPO installed between 2000 and 2012. Those roofs are now 13-25 years old. For the buildings where the membrane held up well — good seam condition, no ponding from adequate drainage design — silicone restoration is often the most capital-efficient path through the next 15-20 years. We can tell you from a single inspection visit whether a specific roof is in the qualification window.

Silicone coating adhesion and long-term performance are entirely dependent on substrate preparation. We do not shortcut prep to hit a price point because the manufacturer's warranty inspection will find it. Our standard prep sequence: pressure washing at 3,500-4,000 PSI to remove biological growth, chalk, oxidation, and loose aggregate — a significant task on Orlando roofs where the combination of heat, humidity, and rainfall grows algae and mold on membrane surfaces faster than in drier climates; full inspection and documentation of any open seams, failed flashings, or wet zones requiring repair before coating; targeted repair of all deficiencies including seam repair, flashing re-termination, and drain reset; and manufacturer-specified primer application on substrates requiring it.

Central Florida's climate creates two substrate preparation complications not common in northern markets. First, the intense UV load means the cleaned surface must be coated within the manufacturer's specified window after washing — we schedule coating immediately after prep rather than leaving the membrane exposed. Second, and more significant in Orlando: relative humidity in Central Florida during the June-October rainy season regularly exceeds 85% for extended morning periods, which falls outside the application conditions most silicone manufacturers specify. We check and log ambient temperature, relative humidity, and dew point before every application session. On days where conditions are outside the manufacturer's application window, we do not apply.

Base coat and top coat application goes in two or more passes to achieve the specified dry-film mil thickness. We use a wet-mil gauge after every 1,000 square feet of application and at every flashing detail to verify thickness before the material cures — silicone cannot be added after cure without additional primer and the warranty inspector will find any thin spots on a 15 or 20-year system.

Ten-year warranty systems apply a minimum 20-wet-mil dry-film thickness in two passes. This is the entry path — appropriate for Orlando buildings where the owner's capital horizon is 10-15 years, the existing membrane is in fair condition, and the goal is to defer replacement cost while maintaining a warranted watertight system. Least expensive, fastest to install, least margin for application variability.

Fifteen-year systems apply 25-30 dry mils in two or three passes and include reinforcing fabric embedded in the base coat at flashings and seams. The fabric reinforcement is what converts a coating at flashings from a simple membrane encapsulation into a warranted flashing assembly — and it is specifically what the manufacturer's warranty inspector checks. On Orlando buildings with long parapet runs and high penetration counts, as is typical on the Tourist Corridor hotel roofs, the fabric detail adds meaningful labor cost but changes the warranty terms substantively.

Twenty-year systems apply 30-35 dry mils in three passes with full fabric reinforcement at all seams and flashings. This is the maximum warranty path on fluid-applied silicone and the system that produces the lowest lifecycle cost per year on buildings with a long ownership horizon. Some manufacturers require a pre-application site inspection by their field representative before issuing the 20-year warranty — we schedule and coordinate that inspection as part of the project scope, not as an afterthought at closeout.

We walk the roof, pull moisture cores at representative locations, and inspect the membrane for open seams, delamination, and flashing condition. The inspection takes two to three hours on a typical 50,000-square-foot building. We produce a written assessment: qualifies (with substrate conditions documented and the warranty path that the conditions support) or does not qualify (with the replacement recommendation and the reason).

Silicone does not absorb water and does not lose adhesion from standing water contact — which is a meaningful advantage on Orlando commercial flat roofs that routinely pond after major convective storms. This is one reason silicone is often the right coating chemistry for Florida commercial applications over acrylics, which can soften and lose reflectance after extended ponding. Most manufacturer warranties specify maximum ponding duration allowances — we verify that the roof's drainage design meets those allowances before applying.

Yes. One of silicone's long-term advantages is that a properly applied system can be recoated at the end of its warranty term — typically a 10-15 mil recoat pass over the existing silicone with additional primer — renewing the warranty at a fraction of original installation cost. This is what makes silicone restoration compelling on a 20-30 year capital horizon for qualifying Orlando commercial buildings.

We will walk the roof, pull moisture cores, and produce a written substrate assessment with coating warranty paths and installed cost estimates — or an honest replacement recommendation if coating is not the right scope.