As a York commercial metal roof coating contractor, we treat rust, replace failed screws, close open laps, and coat steel roofs on plants and shops.
York commercial metal roof coating works on steel that still has strength left. Compare your roof against both cards below.
Most York plant roofs with surface rust and a list of loose screws land on this side.
Panels in this column get swapped out before any coating goes near the roof.
Most steel roof leaks come from a short list of details. Here is how each one ranks before coating.
Rust left under coating keeps growing and lifts the film from below. We remove loose scale, then prime bare and rusted steel with a rust-inhibiting primer before the base coat.
Laps trap water and rust from the inside long before the surface shows it. We open suspect laps far enough to see the metal and decide whether it stays.
Neoprene washers shrink and crack with age even when the screw stays tight. Those heads get a sealant cap or a new screw during prep.
Water dripping near a fan or exhaust stack during rain needs attention now. We trace whether it comes from the curb, the flashing, or condensation off the fan housing.
Orange streaks at the lower panel edge usually mean gutters or ice are holding water there. Fixing that drainage comes before coating the eave.
These are the coating routes we use on commercial steel roofs in York.
Rust-inhibiting primer under two acrylic coats fits ribbed roofs that drain fast. It recoats easily later and needs dry, warm days to cure.
Low-pitch metal with slow spots near the gutters can take a silicone system over primer. Future recoats then have to be silicone as well.
Where the building needs insulation, foam sprayed over the ribs fills the profile and gets a protective topcoat. It adds weight and needs dry weather.
Roofs coated years ago that still hold firmly get cleaned, spot-repaired, and recoated with a compatible product instead of starting over.
Reinforced coating over every lap and screw row seals the joints where steel roofs leak most, while the panels stay in place.
Primer and coating keep water and air off bare steel, so surface rust treated during prep stops spreading under the film.
Light topcoats reflect more sun than weathered paint, which keeps the steel and the space under it cooler on hot afternoons.
Coating happens from the roof side, so machines, docks, and offices underneath keep running while each section is prepped and coated.
On a steel roof, coating does specific jobs. These are the ones we stand behind on York plants.
A screw that spins has nothing left to grip. Call and we will check whether the panel or purlin under it needs more than a bigger fastener.
Five steps take a rusted steel roof from inspection to a measured topcoat.
Every slope gets walked, laps get opened where rust shows, and screw rows get tested by hand. Inside, we check purlins and insulation under any leak stain.
Holed panels come out, new ones go in with a matching profile, and spinning screws are swapped for the next size up with fresh washers.
Pressure washing removes chalk and dirt. Loose rust is scraped or wire-brushed, and bare steel gets primer right away so it has no time to flash-rust.
Laps, ridge caps, and penetrations get sealant and fabric set in a brush coat, so the joints that move carry extra material.
Base and topcoat are sprayed or rolled across the panels at the listed thickness, with readings taken as we go and noted for your records.
Other systems we apply when part of the building needs something different.
Flat additions and low-pitch sections that hold water after storms.
Silicone Roof Coating in York
Steep, fast-draining ribbed roofs where easy recoats matter most.
Acrylic Roof Coating in York
Roofs that need insulation added along with a new surface.
Spray Foam Roofing in York
Mansards and office sections with shingles still lying flat.
Shingle Roof Coating in YorkWhat owners of steel plant and shop roofs ask us most.
Coating-based restoration plans at about $2.50 to $4.00 per square foot of roof, compared with about $5 to $8 for replacement. Panel swaps, screw replacement, lap repair, and flashing work are what push a roof toward the top of the coating range.
Exposed-fastener roofs carry thousands of screw heads, and each one needs checking, replacing, or capping before coating. That labor puts them higher in the coating range than a standing-seam roof of the same size, where most fasteners sit hidden under the seams.
Most of the work happens before coating. Screws, laps, ridge caps, and flashing get fixed, moisture gets traced, and an adhesion test confirms the primer will hold to the old paint. On machinery plants, curbs and walkways around equipment usually take the most hours.
It must. Rust inside a lap keeps working after the surface is coated and eventually splits the seam open. We open the lap enough to see the steel, clean and prime it, and replace the panel end if the metal has thinned.
In most cases, yes. Prep and coating happen on the roof surface, so production keeps going. We plan around intakes, loading docks, and any area where overspray or wash water could reach people or product, and we schedule noisy screw work with your maintenance lead.
The right match comes from slope, drainage, and the finish already on the panels. Fast-draining ribbed roofs often get acrylic over primer; low-pitch roofs with slow spots near the eaves lean toward silicone. An adhesion test on your panels settles the choice.
No single product wins on every roof. How long a coating holds comes down to preparation, thickness, drainage, and foot traffic, so we compare systems by fit and recoat path instead of by the label on the pail.
Enter your roof size for a free ballpark range, or call to book an inspection of your steel roof.
