Crew coating an exposed-fastener metal roof on a commercial building in Radcliff, KY
Exposed-Fastener Metal Roofs

Radcliff Commercial Metal Roof Coating

Commercial metal roof coating in Radcliff for screw-down warehouses, ag shops, and strip buildings: rust primed, every screw tightened and capped, every lap taped, then a full topcoat.

  • Rust treated to firm steel
  • Stripped screws upsized
  • End laps striped wide

Is This Metal Roof A Fit?

Match what you see on the panels to a column. Scattered bad panels still fit, since they get swapped before the field is coated.

  • Usually Fits
  • Sometimes
  • Rarely
Is This Metal Roof A Fit?
What You See On The RoofCoating OnlyCoating Plus RepairsReplacement First
Rust bloom a wire wheel removesUsually FitsSometimesRarely
Leaks lined up with screw rows and end lapsUsually FitsSometimesRarely
Pinholes in a few panelsRarelyUsually FitsRarely
Panels that flex only slightly underfootUsually FitsSometimesRarely
Daylight through panels from insideRarelySometimesUsually Fits
Insulation wet and sagging across the bayRarelyRarelyUsually Fits

Light rust and leaky screws are the classic coating job. Once most panels need swapping, a new roof makes more sense for the life of the building.

Metal Roof Problems We Fix First

Six conditions show up again and again on R-panel buildings around Radcliff. Each one is handled before the topcoat.

  • Scale Under Old Paint

    Loose scale traps moisture, and a coating laid over it keeps flaking from below. We wire-brush or wheel it back to firm metal, then prime the bare spots before the next dew settles.

  • Stripped And Backed-Out Screws

    Screws that spin in their holes get replaced with a larger-diameter screw. Empty holes left from old fixtures are filled, so the topcoat never has to bridge an open hole.

  • End Laps Pulling Water Uphill

    Capillary action draws rain up under the upper panel at each end lap. The lap gets cleaned, its stitch screws checked, and a fabric stripe laid wider than on a side lap.

  • Yellowed Skylight Panels

    Fiberglass skylight panels turn brittle and crack around their fasteners. Each one is swapped for a new translucent panel or covered with metal, and its laps are sealed before the field coat.

  • Ridge Closures Gone Missing

    Foam closures under the ridge cap rot out, leaving gaps for wind-driven rain and birds. New closures and stitch screws go in, then the cap laps get seam fabric.

  • Gable And Eave Trim Gaps

    Trim pieces overlap at every corner, and those joints open as screws loosen. The trim gets reset, fasteners are added where the spacing runs too wide, and each joint is sealed like a lap.

Commercial Roof Coating Options for Radcliff

Four ways a Radcliff metal roof gets coated. Slope, standing water, and insulation decide which one fits.

  • Acrylic Over A Sloped Field

    A pitched R-panel roof that sheds water fast takes a white acrylic topcoat over primed rust and taped laps. It is the lower-cost route and easy to recoat later.

  • Silicone In Gutters, Acrylic Above

    Box gutters, valleys, and low laps get silicone, which holds up under standing water. The sloped panels above get acrylic, so each part of the roof carries the coating it needs.

  • Full Silicone System

    Low-slope metal with water lingering at end laps gets silicone across the whole field. It also fits jobs in cooler months, since silicone tolerates damper application days.

  • Foam Plus Coating

    Heated shops and offices with thin insulation can take spray foam over the panels first. The foam fills the ribs and buries the screws, then a coating protects it from sun.

Benefits of Coating Your Roof

On an R-panel building the gains show up at the screws and laps. Here is a coated roof next to a tear-off.

Benefits of Coating Your Roof
What ChangesMetal Roof CoatingNew Metal Roof
Screw headsEvery head capped after tightening or upsizingNew screws with new washers that age again
Panel lapsFabric-reinforced so they move without crackingNew laps sealed with tape and closures
RustSlowed by keeping water and oxygen off the steelRemoved along with the old panels
Inside the buildingStock and equipment stay covered the whole jobOpen roof sections during the panel swap
WasteOld panels stay on the buildingOld panels and screws hauled to a landfill

Rust Spreading Along The Laps?

Rust that reaches the laps keeps creeping under them. A roof walk now shows how many panels still take coating and how many need swapping.

What To Have Ready

  • Approximate roof square footage
  • Count of skylight panels
  • Photos of rust from inside
  • Where a lift can park
Get A Free Ballpark Estimate

Coating An R-Panel Roof, Stage By Stage

The metal roof sequence we follow in Radcliff, one stage at a time.

Stage 1 of 5

Inspect Your Roof

Panels, screws, laps, ridge caps, gutters, and skylights are checked from above, and the purlins and insulation from below. Rust gets graded by hand as bloom, light scale, or rust-through.

  • Leak stains matched to screw rows
  • Panels marked for swapping
Stage 2 of 5

Swap And Tighten

Failed panels come out and new ones go in over the existing purlins. Loose screws get tightened, stripped ones are replaced with a larger diameter, and crushed washers come out with their screws.

  • Ridge closures replaced
  • Gutter seams opened up and cleaned
Stage 3 of 5

Wash, Wheel, And Prime

Pressure washing takes off dirt and chalky paint. Wire wheels take rust down to firm steel, and a rust-inhibiting primer covers every bare spot, including inside the gutters.

  • Test patch on chalking factory paint
  • Intakes covered while primer cures
Stage 4 of 5

Stripe Every Lap

Side laps get fabric or seam tape bedded in base coat. End laps are striped wider, and each screw head is capped by hand so the washer edge stays covered.

  • Skylight laps sealed
  • Pipe boots flashed with fabric
Stage 5 of 5

Topcoat The Field

One or two topcoat passes go over the whole roof, with the wet thickness read as the work moves along. A final walk catches thin spots at ribs and laps.

  • Thickness noted section by section
  • Touch-ups at ridge cap laps

Other Coatings For Metal Buildings

The same roof can need more than one system. These four come up most often on Radcliff metal buildings.

  • Aerial view of silicone coating on a commercial roof

    Silicone Roof Coating

    Low spots, box gutters, and valleys on a metal roof hold water after rain, and silicone handles that standing water better than acrylic.

    Silicone Roof Coating in Radcliff
  • Aerial view of coating work on a metal barn roof

    Acrylic Roof Coating

    Steep, fast-draining panels on shops and storage buildings are where acrylic keeps the price down and the surface bright.

    Acrylic Roof Coating in Radcliff
  • Crew spraying foam on a commercial roof

    Spray Foam Roofing

    Heated metal buildings with thin insulation gain the most from foam, which buries every screw and fills the ribs.

    Spray Foam Roofing in Radcliff
  • Crew coating a commercial asphalt shingle roof

    Shingle Roof Coating

    Some properties pair a metal warehouse with a shingled office or entry roof, and that shingle section gets its own inspection gate.

    Shingle Roof Coating in Radcliff

Metal Roof Questions From Radcliff Owners

Answers about rust, screws, laps, and who to call before work starts.

Good Candidates

Which commercial metal roofs make good coating candidates?

Roofs whose panels are attached and solid, with rust on the surface and leaks traced to screws, laps, or flashing.

Exposed-fastener warehouses, ag shops, and strip buildings fit most often. Holes in panels, rust flaking through to daylight, or wet insulation point to partial re-paneling before any coating goes on.

Rust Prep

How is rust treated before a metal roof is coated?

Brushes or a wire wheel take it down to firm steel, and a rust-inhibiting primer covers the bare spots.

Red rust shows up at screws, laps, and low panel ends, while galvanized panels get white rust, a chalky deposit that needs a compatible primer. Pinholes get reinforcing fabric bedded in base coat.

Screws And Washers

What happens to the screws and washers on an exposed-fastener roof?

Every one gets checked, since aged washers cause most R-panel leaks.

Loose screws are tightened, stripped screws and those with crushed washers are replaced with a larger diameter, and empty holes are filled. Each head is then capped with base coat or sealant, which is why fastener work drives much of the labor on a big warehouse.

Laps

How are panel laps and end laps sealed on a metal roof?

With a strip of polyester fabric or seam tape bedded in base coat, so the joint can move without cracking.

Panels grow in summer heat and shrink on cold nights, and that movement gathers at the laps. End laps get the widest stripe because water creeps uphill under the upper panel there. Ridge caps and trim get the same treatment.

Skylights And Gutters

How are skylight panels, ridge caps and gutters handled?

Each gets its own repair before the field coat, because these details start many metal roof leaks.

Cracked skylight panels are swapped or covered with metal, ridge caps get new closures and stitch screws, and rusty gutters are cleaned, primed, and sealed with clear outlets. Pipe boots and unit curbs are flashed in the same pass.

City Permits

Who reviews commercial roof work in Radcliff?

Start with a call to the City of Radcliff. The state's Hardin County contact sheet lists Radcliff under one heading with Elizabethtown and Hardin County, without an inspector for Radcliff alone.

Have the address, building use, roof type, and scope ready. If a rooftop unit gets lifted for curb work, the state HVAC inspector on that sheet joins the job.

Utilities

Which electric co-ops should Radcliff building owners check before roof work?

Check your bill: Nolin RECC and Meade County RECC both list Hardin County, and other utilities serve the area too.

Knowing the utility matters when the service drop lands at the eave or a mast passes through the panels. A loose or leaning mast goes to the utility and an electrician before anyone coats around it.

Roofer checking fasteners on a commercial metal roof near Radcliff

Ready To Seal Those Screws And Laps?

Send the roof size and a few leak photos. We will walk the panels and tell you what gets coated, swapped, or left alone.

Call Us (270) 236-5617