Rain
Ponding Over Low Seams
- You See
- Rings of dirt where water sat after the last storm.
- What It Means
- Seams in low spots spend more time wet than dry. They get reinforced fabric and an extra pass of silicone before the field coat.
Merrillville, Indiana
Merrillville Silicone Roof Coating Contractor
Silicone That Protects Low-Slope Roofs Where Water Lingers
As a Merrillville silicone roof coating contractor, we clean and prime low-slope roofs, seal every seam, and spray silicone where water tends to sit.
- Handles short-term ponding
- White, reflective finish
- One or two thick passes
Fit Check
Is Your Merrillville Roof a Fit for Silicone Roof Coating?
Merrillville silicone roof coating goes on roofs with low slope and slow drainage. Check the columns against what you see after the next rain.
| Roof Detail | Fits Silicone | Sort Out First |
|---|---|---|
| Slope | Flat or low-slope sections | Steep panels that drain fast |
| Ponding | Water gone within two days | Water standing for a week or more |
| Existing Surface | Old silicone or firm factory finish | Peeling acrylic or loose granules |
| Seams | Tight, ready for a detail coat | Split seams or open laps |
| Insulation | Dry everywhere probed | Soft, wet sections under the deck |
Fixed First
Merrillville Silicone Roof Coating: What We Check and Fix
Silicone covers a lot of roof trouble well, yet these four conditions have to be handled before it goes on.
UV
Chalky, Cracked Old Coating
- You See
- Powder on your hand and fine cracks in the old surface.
- What It Means
- Sunlight breaks down older coatings until they chalk. The loose surface is washed off, and a test patch confirms the new silicone will grip.
Equipment
Leaks at Rooftop Unit Curbs
- You See
- Ceiling stains right below the HVAC units.
- What It Means
- Curb flashing flexes every time the unit cycles. Those corners get fabric-reinforced silicone, plus walkway pads for service traffic.
Leaks
Wet Insulation Under the Field
- You See
- Soft spots underfoot and a deck that gives a little.
- What It Means
- Wet insulation traps water under any coating. Those areas are cut out, replaced, and dried before silicone goes over them.
Your Options
Commercial Roof Coating Options for Merrillville
Silicone is one of three answers for a slow-draining roof. Here is how it lines up with the other two we use.
Silicone Over a Firm Surface
Low-slope metal, built-up, and older coated roofs that are firm and dry take silicone directly after cleaning and primer.
Foam, Then a Silicone Topcoat
Roofs that need insulation or build-up at low spots get spray foam first, then silicone as the protective coat.
Spray foam roofingAcrylic on the Sloped Parts
Steeper sections that drain quickly can take acrylic instead, joined to the silicone area at a reinforced seam.
Acrylic roof coatingBefore And After
Benefits of Coating Your Roof
The low-slope roof today and after silicone, item by item.
Before Coating
- Water ponding against bare seams after rain
- A dark surface heating the space below
- Unit curbs leaking at their corners
- Rust spots spreading on any metal in low areas
After Coating
- A thick silicone film that keeps working under short ponding
- A white surface that reflects sunlight
- Curb corners wrapped in reinforced silicone
- Primed metal sealed out of reach of standing water
Before You Call
Puddles Still on the Roof Two Days After Rain?
Lasting ponding is the clearest sign silicone fits the roof. Tell us where the water collects, and the roof walk starts there.
What To Have Ready
- The property address
- Where water collects
- Drain or gutter spots, if known
How It Goes
How Silicone Roof Coating Is Applied in Merrillville
Silicone work follows these five steps, with the weather checked before each spray day.
- Findings
Inspect Your Roof
Each low spot, seam, and curb gets checked, and the field is probed for wet insulation. Ponding areas are measured and marked on a roof sketch.
- Wash
Clean the Whole Surface
Pressure washing lifts dirt, chalk, and biological growth. Silicone grips poorly on dust, so the roof is fully dry and clean before priming.
- Drains
Clear and Reset Drains
Clogged drains and scuppers are cleared and broken strainers replaced, so water leaves the roof as fast as the slope allows.
- Detail
Detail Seams and Curbs
Seams, curbs, and penetrations take a reinforced detail coat, with fabric embedded in silicone, ahead of the field pass.
- Coat
Spray to Full Thickness
Silicone goes on in one or two passes to the mil thickness the product requires, checked with a wet-film gauge as the spray moves.
Related Systems
Coating Systems That Pair With Silicone in Merrillville
Buildings often need silicone on one section and another system elsewhere.
Commercial Metal Roof Coating
Screw-down steel over the warehouse side gets rust and fastener work, then a coating of its own.
Commercial Metal Roof Coating in Merrillville
Acrylic Roof Coating
Pitched metal over offices that sheds water quickly fits a water-based acrylic coat instead.
Acrylic Roof Coating in Merrillville
Spray Foam Roofing
Low areas that need building up and added insulation can take foam beneath the silicone.
Spray Foam Roofing in Merrillville
Shingle Roof Coating
Shingle-roofed wings of the building get an asphalt-rated coating in place of silicone.
Shingle Roof Coating in MerrillvilleOwner Questions
Silicone Roof Coating Questions From Merrillville Building Owners
Cold weather, coats, drawbacks, cost, and summer heat, answered for low-slope roofs.
Is Silicone Roof Coating in Cold Weather Possible Here?
Silicone handles cooler days better than acrylic, but the roof still has to be clean, dry, and free of frost or dew. Late fall afternoons often work once the surface dries. If moisture is likely to form before the silicone skins over, we wait for a better day.
How Many Coats of Silicone Roof Coating Does a Roof Need?
One or two coats is usual, set by the target thickness in mils and the product. Seams and fasteners get a reinforced detail coat first. Wet thickness is measured during application so the finished film meets the maker's number across the whole roof.
What Are the Downsides of Silicone Roof Coating?
Dirt sticks to silicone and dulls its reflectivity over time, and the surface turns slick when wet, so roof access takes care. Only silicone sticks well to silicone, which narrows your recoat choices later. The softer surface also benefits from walkway pads along routes to rooftop units.
What Does Silicone Roof Coating Cost on a Merrillville Building?
Silicone sits within the published coating range of about $2.50 to $4.00 per square foot, against roughly $5 to $8 per square foot for replacement. Required thickness, the number of seams and fasteners to detail, primer, and how much ponding the roof has decide where your number lands.
How Does Summer Heat Treat a Silicone Roof?
Heat makes seams and fasteners expand and contract, and silicone stays flexible through it while resisting UV breakdown. The white finish runs cooler than bare metal. Spray days are picked so the surface temperature stays inside product limits, often in the morning, with an eye on afternoon storms.
Is Recoating a Silicone Roof Later a Big Job?
Recoating mostly means washing the old film, repairing any cut or torn spots, and spraying a fresh pass at full thickness. New silicone grips old silicone that is still attached, so the earlier work stays in place as the base.
Free Estimate
Hire a Merrillville Silicone Roof Coating Contractor
Tell us where the water sits, or run the ballpark estimate for your roof size.