Pittsburgh metal roof coating starts with a roof walk. We mark loose fasteners, open seams, and rust, repair them, then coat the panels.
We handle Pittsburgh metal roof coating on the five systems below. Each card lists where water gets into that kind of roof first.
Exposed-fastener panels on shops, terminals, and warehouses get cleaned, primed at the rust, sealed at every screw and lap, then coated in two passes.
Where Water Gets In
Low-slope metal and older flat roofs with low spots take silicone well, once we find why water collects and fix the drain path.
Where Water Gets In
Sloped panels that shed water quickly take a water-based acrylic, scheduled for warm, dry stretches between spring and fall.
Where Water Gets In
Flat roofs that need insulation and one continuous surface get sprayed foam over a dry deck, then a protective topcoat.
Where Water Gets In
Commercial shingle sections, such as a mansard face, can be coated when the shingles lie flat and the makers support the pairing.
Where Water Gets InCoating works on a roof that is still attached and mostly dry. These two lists show what we look for on the first walk.
Five steps, in this order, on every coated roof. The repairs always come before the coating.
We walk every panel, mark loose screws, open laps, and rust, and check drains, curbs, and flashing. On some buildings we look at the underside too, to tell condensation apart from a leak.
Backed-out screws are swapped for larger ones, cracked washers come out, and lifted laps are fastened down. Failed flashing at walls, curbs, and vents is rebuilt.
Panels are washed to remove chalk and grime. Loose rust is brushed off, and a rust-inhibiting primer goes on wherever bare steel shows.
Every lap, screw head, and penetration gets sealant or reinforcing fabric. These details carry the panel movement, so they are finished before the field coat.
The base and top coats go on at the thickness the product calls for, in weather that lets them cure, with thickness checked as each section is finished.
Rust at panel laps and screw rows grows with every freeze-thaw winter. Get a free ballpark range for coating the roof while the steel is still solid.
Western Pennsylvania weather works on metal roofs in predictable ways. Each card names the cause, what you see, and what it means for coating.
Each row pairs a common failure on Pittsburgh metal roofs with what the coating work does about it.
Washers dry out and crack, and each screw turns into a small opening in the roof.
Screws are replaced or resealed, then covered by the coating so water has no path to the hole.
Panels grow in the afternoon sun and shrink overnight, working the sealant loose at every lap.
Laps get fresh sealant and fabric, and the flexible coating stretches with the panels instead of cracking.
Bare spots rust faster each wet season and slowly thin the steel.
Rust is cleaned and primed, then sealed under a coating that keeps water off the metal.
Dark, faded panels soak up summer sun and pass that heat into the building.
A white or light topcoat reflects more sunlight, so the panels run cooler on summer afternoons.
Chalky factory paint wears thin and leaves bare metal exposed across the field.
A new coating layer replaces the worn finish over the whole roof, laps and ridge caps included.
Warehouses, fabrication shops, churches, and storefront blocks in these towns are where we coat metal roofs most. Elsewhere? Call us or send us a message.
River terminal warehouses, steel fabrication shops, and hillside commercial blocks with older metal roofs.
Storefront and office roofs where the work is staged around shoppers, diners, and tenants below.
Church, school, and office roofs, often checked from underneath before we plan the coating.
Fabrication shops and older industrial roofs with vent bases that need rebuilding first.
Commercial roofs with worn service paths between roof hatches and rooftop units.
Warehouse and distribution roofs crossed by cable runs and equipment supports.
Coating pays off when the panels are still attached and the steel is solid under the rust. On a fabrication shop or warehouse, we check corrosion, laps, and equipment areas, then list the repairs that come before coating.
Judge the value by those repairs and the upkeep plan, since a fresh white finish looks good on almost any roof.
Plan on about $2.50 to $4.00 per square foot of roof for coating, compared with about $5 to $8 per square foot for replacement.
Where a warehouse lands in that range comes down to roof size, access, rust and seam preparation, fastener sealing, coating type and thickness, the number of coats, and the penetrations and flashing that need work.
Look for bare metal showing through, chalky or thin spots, and coating peeling at laps or screw rows. Those signs call for a look at the panels underneath. Sometimes a few local repairs are enough; other times the damage runs deeper, and recoating the whole field would only hide it.
Commercial pole barns and equipment buildings coat well when the panels are tight. Where metal panels meet a masonry wall, that joint needs its own repair, because water running behind the wall flashing stays there however well the field is coated. We inspect wall entries, flashing, and panel movement before pricing the job.
Freezing water expands inside any small gap and can split a seam or trap moisture under the coating. If a split shows up, we open the joint and look at the panel connection underneath before blaming the coating. The repair has to handle movement and drainage, or the same lap opens again next winter.
Inside city limits, construction permitting runs through the Department of Permits, Licenses, and Inspections. We describe the planned work to that office, including panel repairs and the coating assembly, so the review matches the real scope. Towns outside the city have their own building offices, and we check with the right one for each job.
Send the roof size and condition for a ballpark range, or call to set up a roof walk at your building.
