We apply silicone roof coating in Louisville on low-slope metal, flat additions, and box gutters where rainwater sits, after cleaning, priming, and detailing every drain.
Silicone earns its place where water sits. These are the low-slope conditions we sort before choosing it.
| What We Find | Silicone Fits | Fix First | Other System |
|---|---|---|---|
| Puddles on flat-pitched R-panel after rainSilicone is the usual pick here. | Silicone Fits | Fix First | Other System |
| Box gutter seams leaking at outletsSeams resealed and fabric set before coating inside. | Silicone Fits | Fix First | Other System |
| One area holding water for daysPurlins checked for sag before any coating. | Silicone Fits | Fix First | Other System |
| Steep panels that drain fastAcrylic costs less there and stays whiter. | Silicone Fits | Fix First | Other System |
| Old silicone worn thinCleaned and recoated with silicone. | Silicone Fits | Fix First | Other System |
Low spots on metal and flat additions collect water after every storm. This is what we find before silicone goes on.
Silicone goes over more than one roof type. These are the three we coat with it most.
Flat-pitched R-panel and low standing seam roofs that puddle after rain. Rust is primed and laps sealed before silicone covers the field.
Best on: Additions, canopies, older plants
Older flat roofs over offices and shops, once a moisture survey shows dry insulation. Wet areas are cut out and replaced first.
Best on: Offices, strip centers, schools
Built-in gutters where water sits after storms. Seams and outlets are resealed and fabric set, then silicone lines the trough.
Best on: Older brick and metal buildings
What silicone changes on a roof that holds water after rain.
Water that sits for days leaves silicone's film intact, where water-based acrylic softens. Low panels and gutter troughs gain the most from it.
Cold weather leaves silicone flexible, so it rides through freeze-thaw cycles at laps and curbs where old caulk has been cracking.
Coating the existing roof costs far less than tearing it off and installing a new one, provided the deck and insulation underneath are dry.
Drains, outlets, curbs, and laps get detailed before the field coat, then one continuous membrane covers the whole low-slope area.
Tell us which section holds water and for how long after a storm. That tells us where drains, laps, and purlins need checking first.
Silicone needs a clean, dry, primed roof to stick, so most of the visit goes into prep.
We map where water sits after rain, take moisture readings, and check purlins under any spot that holds water for days. Old coatings get identified, since silicone recoats call for silicone.
Drains, scuppers, and gutters are cleared, then the roof is washed of dirt, chalk, and oil. Silicone needs a fully dry surface, so wet mornings push the start back.
Rusted steel gets a rust-inhibiting primer, and aged single-ply or old coatings get the primer the silicone maker lists. Test patches confirm adhesion before the field.
Seam sealer and fabric go on laps, curb corners, pipe boots, and box gutter outlets. Gas lines resting on the roof are marked and supported before anyone sprays near them.
Rooftop unit intakes are covered, then silicone is sprayed or rolled to the film thickness on the data sheet, heaviest where water sits longest.
Silicone rarely covers a whole building on its own. These systems handle the sections around it.
Sloped metal sections on the same building get rust treatment and their own coating plan.
See Metal Roof CoatingSteeper panels that drain fast often get acrylic, which stays whiter and recoats easily.
See Acrylic Roof CoatingSpray foam can rebuild slope on a flat roof that ponds, then take a silicone topcoat.
See Spray Foam RoofingWhat owners ask before choosing silicone for a roof that holds water.
Question about your own roof?
Call UsUsually, yes. Silicone handles standing water better than acrylic, which is why we pick it for low standing seam, flat-pitched R-panel additions, and box gutters. Plan for three trade-offs: dirt dulls the white, later recoats need silicone or a special primer, and wet silicone is slick. Water that sits for days also earns a look at the purlins.
In a set order: inspection, pressure wash, rust removal and primer on bare or rusted steel, fastener work, then sealer and fabric at laps, end laps, curbs, and flashing. Skylights, vents, and rooftop units are masked before base and top coats go on, and each step is photographed so you see the panels before coating covers them.
Gas and plumbing permits run through the Kentucky Department of Housing, Buildings and Construction, while Louisville Metro handles the building side.
Gas lines to rooftop units often rest on wood blocks that hold moisture, so the steel under them rusts first. Lifting a pipe to prime beneath it can count as moving gas piping, so every line and support gets marked first.
Over old silicone, yes, after cleaning and a test patch. Over acrylic, the maker's primer goes down first, and loose or peeling coating comes off. Once silicone is on the roof, future recoats stay with silicone, because acrylic and most other coatings bond poorly to it.
Silicone surfaces hold airborne dirt more than acrylic, so a bright white roof dulls over time, most near exhaust fans and on low spots. Washing with a cleaner the coating maker approves brings back some reflectance, and the same wash prepares the roof for a recoat years later.
Tell us where water sits and how big the section is. We will check drains, laps, and purlins and tell you if silicone fits.
Leave a name and number and we will call you about the roof.
Or call now: (502) 281-7941