Silicone roof coating for Erlanger roofs that hold water after rain. We inspect the low spots and laps first, then seal the details and spray one thick coat.
1Inspect The Roof
2Spray The SiliconeSilicone suits low-slope roofs where water sits after a storm. The roof on the right has a problem a coating would seal in, so it needs work first.
Deep low points with heavy ponding are worth a drainage fix before the silicone goes on.
Low-slope roofs hold water in predictable places. Silicone is chosen for those spots, and each one gets detail work before the field coat.
Water backs up where panels overlap downslope on a low pitch. Each end lap is cleaned, primed, and covered with fabric bedded in silicone.
Curbs dam water on their upslope side, so a pond forms behind most units. Curb flashing is sealed and the base gets a heavier coat.
Clogged gutters and scuppers back water onto the panels. We clear them, reseal rusted gutter seams, and coat inside the gutter where seams weep.
Boots crack before the rest of the roof does. Each penetration gets a brushed-in silicone detail, plus fabric where the flashing has pulled away.
Silicone sheds water from above but would seal moisture in below. Wet insulation is found from inside and dried or replaced before we spray.
Silicone is one of four topcoats we put on low-slope commercial roofs. Here is how they compare where water sits.
| Option | Best On | Watch For | Recoat With |
|---|---|---|---|
| Silicone | Ponding areas and low pitch | Dirt dulls the white surface | Silicone or a bonding primer |
| Acrylic | Roofs that drain within a day | Softens under standing water | More acrylic |
| Urethane Basecoat | Walkways and service paths | Odor near air intakes | The matching topcoat |
| Spray Foam And Silicone | Roofs that need insulation and slope | Dry, calm weather to spray | Silicone over the foam |
Roofs that drain within a day and see little foot traffic can sometimes take acrylic roof coating instead.
On a low-slope roof, these benefits depend on finding the wet spots first. With the deck dry, silicone gives you all four.
Silicone resists standing water better than acrylic, so puddles behind curbs and at end laps sit on a coating made to handle them.
Spraying over a firm low-slope roof skips removing the old roof and its insulation, which is why it tends to cost less than a re-roof.
Bright white silicone reflects sunlight and lowers the roof temperature. Dirt pickup cuts reflectance over time, so the aged rating matters most.
Applied at the maker's thickness, silicone goes on in one or two passes, so the field coat takes fewer days than multi-coat systems.
Note where the water sits and how deep it gets. Call us, and we will tell you whether silicone or a drainage fix comes first.
From the first moisture check to the last pass, these are the five steps on every low-slope roof we coat with silicone.
We map where water sits after rain, check end laps and curbs, and look at the insulation from inside. Wet areas are marked before any prep starts.
Dirt and chalked paint come off with a pressure washer and an approved cleaner. The roof then dries fully, since silicone sticks poorly to damp panels.
End laps, side laps, pipe boots, and curb bases get fabric or seam tape set in silicone. Primer goes on any bare or rusted steel.
Silicone is sprayed at the thickness on the product data sheet and measured with a wet-film gauge across the roof. Heavy ponding areas get extra build.
Photos of the detail work, the product data sheets, and the Cool Roof Rating Council listing go to you after a final walk of the roof.
Silicone covers most ponding roofs. These services fit the cases where a different system works better.
Exposed-fastener metal roofs get screw replacement, rust primer, and lap tape before a silicone or acrylic topcoat.
Metal roof coating in Erlanger
Roofs that drain within a day and sit near occupied offices can take low-odor acrylic, which recoats easily with more acrylic.
Acrylic roof coating in Erlanger
If the low spots need slope and the building needs insulation, spray foam builds both, then gets a silicone topcoat.
Spray foam roofing in ErlangerAnswers about ponding, laps, reflectance, and rain after a silicone job.
Usually, yes. Silicone resists standing water better than acrylic, which is why low-pitch standing seam and R-panel roofs that hold water at end laps, drains, and curbs get it.
The trade-offs: dirt dulls the white surface, later recoats need silicone or a special primer, and it gets slick when wet, so walkway pads help near units.
With fabric or seam tape bedded in coating, before the field coat. Each joint is cleaned and primed, reinforced, then brushed over so the edges lie flat.
End laps on long low-slope runs matter most, since wind and capillary action pull water in there. Missing ridge-cap closures are replaced before the cap is sealed.
White reflects more sunlight than faded metal, so the roof surface runs cooler on sunny days. How much of that reaches inside comes down to insulation, ventilation, and how the building is used.
The Cool Roof Rating Council directory lists solar reflectance for rated products, and the aged figure matters more than the new one. Energy bill changes vary by building, so we promise no fixed savings.
Once the coating skins over and partly cures, a window set by the product data sheet and by the day's heat and humidity. Many silicones shrug off light rain quickly.
We start early, keep coating off the panels when rain is forecast inside the cure window, and measure wet-film thickness so no area goes on thin or puddled.
Often, after testing. A clean, well-adhered acrylic coating can take silicone once a test patch shows good adhesion with the maker's primer.
Asphalt-based coatings can bleed through a white topcoat, so they need a bleed-blocking primer or removal. Peeling layers come off first in every case.
It handles the water, but deep ponds over sagging purlins point to a framing or drainage problem that a coating leaves in place.
We check the purlins from inside, and where low spots run deep, we fix the framing or add drainage before spraying. Shallow puddles that dry within a couple of days are what silicone is made for.
Describe where water sits on the roof and how big the building is, or call and walk us through it.
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Or call now: (859) 204-8079