R-Panel · PBR · Standing Seam
Commercial metal roof coating for Bowling Green warehouses, plants, and shops. We grade the rust panel by panel, then seal every lap and screw before the coats.
1Grade The Rust
2Seal The LapsIs This Roof A Fit?
Both panel types take a coating. The leak points differ, so the prep differs too.
Exposed Fastener
Screws through the face of every panel make the washers and side laps the main leak path.
Hidden Clip
Floating clips let panels slide with heat, so seams need flexible fabric and no stiff sealant.
Panel Problems
These show up first on metal buildings around Bowling Green. Each chip shows how soon it needs work.
Flaking rust gets scraped to firm steel, since a coating laid over loose scale peels when the scale lets go.
Missing or loose fasteners leave panels free to flutter in wind and open the holes around them.
End laps pull water uphill by capillary action once the sealant tape dries and shrinks.
Brittle fiberglass panels split at their fastener rows and leak along the edges.
A hole you can see sky through means rain is already reaching insulation and stock below.
Paint that rubs off on your hand is surface wear, and it washes off before primer goes on.
Systems Over Steel
Every metal system starts with cleaning, rust treatment, and the primer the coating maker lists. The top coat is what changes.
Low-pitch panels near gutters and behind curbs hold water longest, and silicone resists breakdown there. Later recoats stay silicone.
Silicone over metalSteeper panels that drain fast suit a bright white acrylic, applied in dry weather with water cleanup.
Acrylic over metalA tough urethane base over seams and around rooftop units takes foot traffic, then another coat goes over it.
Uninsulated steel that drips in winter gets closed-cell foam first, burying fastener and lap leaks under it.
Spray foam over metalWhat You Get
These hold when the steel is firm and the prep is done. The roof walk tells you if yours qualifies.
Coating costs less than tearing off and re-sheeting a roof whose steel is still firm under the rust.
Each fastener head gets sealant or a fabric patch, so the old washer is no longer the only seal.
All the work happens on top of the panels, so the shop or warehouse below stays open.
A worn top coat can be cleaned and recoated with a compatible product years from now.
Rust at the bloom stage keeps a roof in coating territory. Call and we will tell you what to look for before the walk.
Order Of Work
Five steps, in this order every time. Repairs and weather set the pace.
Every screw row and lap gets checked, rust spots get probed for soft steel, and moisture readings find wet insulation under the panels.
Panels are pressure washed with a cleaner matched to the metal. Loose screws get tightened and stripped ones swapped for larger diameters.
Wire brushing takes rust down to firm steel, cut-in patches replace holed sections, and rust-inhibiting primer goes on the bare spots.
Side laps, end laps, ridge caps, and pipe flashings get fabric bedded in base coat. Screw heads get mastic.
Base and top coats go on at the mils the product sheet calls for, and a wet-film gauge confirms it section by section.
Related Work
The same metal building often needs one of these for part of its roof.
Low spots near gutters and curbs that stay wet after rain call for silicone as the top coat over primed steel.
Silicone Roof Coating in Bowling Green
Panels with enough pitch to shed water quickly take an acrylic finish that dries bright white.
Acrylic Roof Coating in Bowling Green
Sweating, uninsulated steel gets foam sprayed over the panels before the coating goes on.
Spray Foam Roofing in Bowling GreenMetal Roof Answers
What owners ask most about rusted and leaking metal roofs.
Rusted Panels
Yes, once loose rust is gone and the steel underneath is treated. Light rust and bloom around screw heads clean up with wire brushing and pressure washing.
Scaly rust gets scraped to firm metal, and panels with holes get patch panels or new sheets before primer. Skipping that step traps scale under the film.
Standing Seam
It does, with different prep. Exposed-fastener roofs leak mostly at screws and side laps, so the work centers on fasteners.
Standing seam roofs hide their clips and leak at end laps, ridge closures, curbs, and trim. Their panels slide with temperature, so seams get flexible fabric instead of stiff sealant.
Screws And Washers
Every fastener gets checked. Loose ones are tightened, and stripped or rusted ones are replaced with larger-diameter screws.
Once each screw is snug, its head gets brush-grade sealant or fastener mastic, and some systems add a fabric patch. Missing screws along purlin lines get replaced so panels stop fluttering.
Galvanized Steel
That is white rust, the zinc layer corroding where water sits, under leaf piles, and along gutters and valleys.
Coatings grip it poorly, so prep adds a cleaner made for galvanized metal, a full rinse, and the primer the coating maker lists. Test patches on a few panels confirm the bond first.
Repair Or Replace
When whole panels are rusted through, purlins sag, or the framing has failed, the roof needs replacement instead of coating.
Scattered pinholes and rust bloom at laps call for restoration: patches, rust treatment, and full seam work, then the coats. Catching rust early keeps more of the roof coatable.
Give us the square footage, the roof type, and its condition. We follow up to walk the panels with you.
Leave a name and number and we will call you back about your commercial roof. Or call now: (270) 236-5206.