
Ready To Coat
- Panel Steel
- Chalky paint, surface rust, no holes
- Screws
- Tighten into firm purlins
- Laps And Trim
- Attached, leaking at sealant only
- Insulation
- Dry when probed
- Our Call
- Repair details, then coat

As a Terre Haute commercial metal roof coating contractor, we brush and prime rust, upsize loose screws, seal laps, and coat R-panel, PBR, and standing-seam steel.
Terre Haute commercial metal roof coating fits steel that is weathered but whole. Set your roof against both cards before deciding.


Four spots fail first on exposed-fastener steel. Each card names what you see and the prep that comes before any coating.
Orange bloom along ribs gets wire-brushed or ground to firm steel, then a rust-inhibiting primer seals it so the topcoat bonds and corrosion stays put.
Hundreds of screws mean hundreds of washers; stripped ones are swapped for larger screws and every head gets a mastic cap before the field coat.
Where two sheet lengths meet, old tape sealant shrinks; laps get cleaned, sealed, and covered with polyester fabric set in coating.
Bent or rusted trim at the edges is refastened and sealed so the finished film runs continuously from the field out to the gutter lip.
Five systems cover the roofs we coat. The table compares what each goes over, how it handles standing water, and what it takes to recoat later.
| System | Goes Over | Handles Ponding | Recoat With |
|---|---|---|---|
| Commercial Metal Roof Coating | Primed exposed-fastener and standing-seam steel | Short-lived puddles only | The same urethane or acrylic family |
| Silicone Roof Coating | Low-slope steel and aged membranes | Holds up under ponding | Silicone only |
| Acrylic Roof Coating | Sloped steel that drains fast | Softens where water sits | Acrylic, easy to clean and recoat |
| Spray Foam Roofing | Steel, concrete, wood, or old built-up roofs | Shaped to slope water off | Silicone or acrylic topcoat |
| Shingle Roof Coating | Asphalt shingles lying flat | Sloped, so it sheds water | Shingle-grade acrylic |
Coating a steel roof changes how it handles water, heat, and wear. These four results matter most on Terre Haute warehouses and plants.
Reinforced fabric and coating bridge every side lap and end lap in one film, so water has no gap to wick through.
Primer and topcoat keep dew, snowmelt, and road salt spray off bare steel at ribs and eaves.
A white or light gray finish reflects summer sun that dark weathered panels soak up, which helps rooms below the deck.
Commercial metal roof restoration keeps the existing steel on the building, so operations underneath continue through the job.
That streak usually means washers have failed. Call and describe the roof; we can tell you what the walk will check before we arrive.
(930) 346-3203Every steel roof follows these five steps in order. Prep takes the most time, and the coating itself goes on last.
Each run gets walked and every lap checked by hand. Soft spots, rusted-through panels, and loose purlins are marked on a roof plan with photos.
Pressure washing strips chalk and dirt. Rust is then graded panel by panel as light bloom, heavy scale, or holes that need new steel.
Primer goes on bare and rusted steel before it can flash rust again. Backed-out screws come out and larger ones with new washers go in.
Laps, curbs, pipe boots, and ridge caps get mastic and polyester fabric so the weakest points carry the most material.
Base and top coats go on in dry weather above the maker minimum temperature, and wet-film gauges confirm thickness on ribs and flats.
Plenty of buildings have more than one roof type. These systems cover the sections where a metal coating is the wrong match.
Flat additions behind a steel warehouse often hold water for days. Silicone handles those puddles where a metal coating would soften.
Silicone roof coating
Steep shop roofs that shed rain quickly can take acrylic over primer, which keeps future recoats simple and the finish bright.
Acrylic roof coating
When an old roof leaks at every lap and the bays below are drafty, foam bridges the seams and adds insulation in one layer.
Spray foam roofing
Office wings with shingle slopes beside a metal shop can be coated in the same visit with a shingle-grade product.
Shingle roof coatingSlope and drainage decide it. Acrylic works on sloped steel that drains in hours, silicone on low sections that hold puddles, and some roofs get a urethane base for grip and impact with an acrylic or silicone top. We choose after checking the finish and where water sits.
More metal roof coating answersFasteners come first, because each screw is a leak path. Loose or stripped screws are replaced with oversized ones, then every head gets a mastic cap or seam tape before the field coats cover the panel faces.
Loose rust and chalky paint come off by pressure washing and hand or power tool cleaning. Bare and rusted steel gets a rust-inhibitive primer matched to the topcoat, and panels with holes are cut out and replaced.
It means repairing and coating the existing steel in place. Cleaning, rust treatment, fastener and seam sealing, curb and flashing repair, and a full coating system all happen while the building stays in use.
Our calculator range runs about $2.50 to $4 per square foot of roof. The number of screws, rusted panels to swap, lap length, roof access, and the system chosen move the price within that range after an inspection.
Thickness follows the product data sheet, stated in dry mils, and the base and top coats together reach it. We check wet film as each coat goes on and build extra at laps, screw heads, and curbs.
Tell us the roof size and what you see at the screws and laps. We walk it, photograph the problem spots, and send a written scope.