As an Erlanger commercial metal roofing contractor, we install, repair, and maintain standing seam and R-panel roofs on warehouses, shops, offices, and canopies.
Standing seam and R-panel
Screws and washers replaced
Ridge, eave, and rake trim
Checked after hail and wind
An Erlanger commercial metal roofing contractor matches the panel to the building, since the two systems differ in how they attach and where water gets in.
| Feature | Standing Seam | R-Panel |
|---|---|---|
| Fasteners | Hidden clips under the seam | Exposed screws through the panel face |
| Minimum slope | Lower slopes with the right seam | Steeper slopes |
| Panel movement | Panels slide on clips | Fixed by screws |
| Upkeep | Seams and trim | Screws, washers, and laps |
| Common buildings | Offices, schools, retail canopies | Warehouses, shops, barns, pole buildings |
| Typical gauge | 24-gauge steel | 26- or 29-gauge steel |
Standing seam carries a higher upfront cost; R-panel costs less but needs fastener checks as washers age.
Metal roofs leak at the small parts that seal them long before the panels give out.
Exposed-fastener R-panel moves with every hot day and cold night, and the screws slowly work loose. Washers dry and crack, holes wear oval, and water follows the screw shank down to the purlin and drips inside far from where it entered.
Usually Means: New screws and washers, one size up where the holes have worn oval.
Old sealant at panel overlaps shrinks and lets wind push rain uphill under the upper sheet.
Water dams on the uphill side of a unit curb and gets under flashing that was never fastened well.
Dented spots and cut edges rust through and need a matching panel or a cut-in section.
Pipe boots and vent collars lose their sealant and leak along the pipe into the building.
Metal work here falls into three kinds of jobs, from a new roof to keeping an older one tight.
Panels go on over underlayment or faced blanket insulation, fastened with floating clips or self-drilling screws with sealing washers. Ridge cap, eave and rake trim, and closures finish every edge.
Light-gauge steel framing builds pitch over an existing flat roof, and new panels go on top. The old roof stays as a dry layer, and an engineering check and permit come first.
Worn screws, open laps, rusted panels, and loose flashing get fixed while solid panels stay in place. Checks after hail or high wind catch problems before water reaches the building.
When panels are past repair, a new metal roof fixes what years of screw swaps leave behind.
Every exposed fastener on worn R-panel is a future leak once its washer ages.
Standing seam hides its fasteners under the seam on floating clips, leaving far fewer holes through the panels.
Older 29-gauge sheet dents under foot traffic near rooftop units and rusts at the dents.
Thicker 24-gauge panels resist dents around units and service paths.
Worn paint on a visible office or retail roof lets bare steel start to rust.
PVDF paint holds color on visible roofs, and bare Galvalume suits warehouses and shops.
Long panels fixed tight to the purlins buckle and pull screws as the steel heats and cools.
Floating clips and expansion details at the ridge let long panel runs move freely.
Call and say whether the drips follow a row of screws, show up at a panel overlap, or sit below a unit. Each one points to a different repair.
Each layer is set and checked before the next one covers it.
We check screws, washers, end laps, panels, trim, gutters, and curb flashing, and look at purlins and insulation from inside. That shows whether repairs or new panels fit the roof.
Standing seam or R-panel is matched to slope and building use. Gauge sets strength, and the finish is picked for visibility and exposure near busy roads or plant exhaust.
Synthetic underlayment goes over a solid deck, or faced blanket insulation drapes over the purlins. Headwall and sidewall flashing is laid out where the roof meets a taller wall.
Floating clips hold standing seam so panels slide as they heat and cool. R-panel gets self-drilling screws with sealing washers driven into purlins in straight rows.
Ridge cap, eave and rake trim, and closures set in butyl tape seal the edges. Gutters are cleared and each fastener row is spot-checked before the roof is handed over.
Metal buildings often sit beside low-slope wings and flat additions that need their own system.
Low-slope wings beside a metal shop need tapered insulation and drains under a membrane.
See flat roofing work
Plants mixing metal outbuildings and large membrane roofs get one plan across the property.
Read about industrial roofs
Membrane leaks at curbs and drains on the same property get traced and repaired separately.
Find membrane roof repairAnswers on panels, gauges, finishes, retrofits, and keeping an older metal roof tight.
Layers, set in order. Underlayment over a solid deck or faced blanket insulation over purlins comes first, then panels on floating clips hidden in the seam, then ridge cap, eave and rake trim, and closures. Long panel runs on Erlanger-area warehouses get expansion details at the ridge so the steel moves freely.
Standing seam usually runs 24-gauge steel, and R-panel 26- or 29-gauge, finished with Galvalume or paint. Bare Galvalume suits warehouses, barns, and shops; silicone-modified polyester gives budget-friendly color on R-panel; PVDF paint holds color on visible offices and retail. Thicker 24-gauge resists dents near rooftop units.
Yes. Light-gauge steel framing is built over the existing flat roof to create pitch, and new panels go over it while the old roof stays as a dry layer. Engineers check the deck and joists for the added load, and gutters, rooftop units, and attic ventilation get planned before a permit is pulled.
Repairs replace the small parts that seal the roof while solid panels stay. Backed-out or rusted screws get new screws and washers, one size up in worn holes; rust-through panels get a matching panel or cut-in section; open end laps are scraped, restitched, and resealed with butyl tape; leaking curb flashing is refastened, sometimes with a new cricket.
A roof walk after hail or high wind comes first. Gutters, valleys, and the uphill side of curbs are cleared of leaves and grit, fastener rows near the eave and ridge are spot-checked, and cracked sealant at pipe boots and vents is renewed before water reaches the building.
New panels make sense when rust-through spreads across many sheets or the panels are too thin to hold new screws. Scattered damage gets cut-in sections of the same profile, while widespread rust and worn holes point to a new roof over the same purlins.
Get a free estimate for new panels, a retrofit over a flat roof, or repairs to screws, laps, and trim.
Leave a name and number and we will call you back about the roof.
Prefer to talk now? Call (283) 202-7024
