Older Metal Buildings, Past Patches

Hillview Metal Roof Coating

We coat older commercial metal roofs in Hillview. First we find every old tar, caulk, and panel patch; then we strip or prime them and coat the roof.

Roofer inspecting fasteners and panel laps on a commercial metal roof
1Find Old Patches
Roof crew applying coating across a commercial metal roof
2Prime And Coat

Years Of Patches Come Off First

Service garages, small shops, and flex buildings in Hillview often carry decades of repairs: tar over screw heads, mismatched replacement panels, and caulk smeared along the laps.

Those repairs decide the prep. Tar and asphalt mastic bleed through light-colored coatings, so we scrape them back or seal them under a bleed-blocking primer the coating maker approves.

  • Tar over screw heads scraped back
  • Mismatched panel laps sealed carefully
  • Hillview city hall and the county inspector
Aerial view of a large metal barn roof

What Old Repairs Leave Behind

Four conditions we expect on Hillview's older metal buildings.

History

Tar Over Screw Heads

You See

Black blobs of mastic covering fastener rows.

What It Means

The mastic hides the screw and bleeds through white coatings, so it comes off or gets a bleed-blocking base.

Age

Mismatched Replacement Panels

You See

A panel or two with a different rib shape or color.

What It Means

Unlike ribs leave gaps at the laps that hold water, so those joints get extra sealant and fabric.

History

Caulk Smeared On Laps

You See

Cracked, dried caulk lines along the side laps.

What It Means

Old caulk fails and traps dirt; it is cut out, and the lap is cleaned and detailed again.

Rain

Rust Under The Patches

You See

Orange bleed seeping from the edge of a tar patch.

What It Means

Water got trapped under the old repair, so the steel below is checked for section loss.

Benefits of Coating Your Roof

Three gains a coating brings to an older Hillview metal roof once the patches are dealt with.

  • Patch On Patch

    A roof that gets a new tar patch every spring.

    What Coating Does

    One continuous coat replaces the cycle of spot repairs with a single sealed surface.

  • Hidden Rust

    Corrosion spreading under old repairs.

    What Coating Does

    Removing the patches exposes the rust, which is primed and sealed instead of covered over.

  • Replacement Cost

    An old roof that looks like it needs all new panels.

    What Coating Does

    Panels that are still solid get coated in place, and only failed ones are swapped.

  • Next Round Of Repairs

    A roof that will keep aging after this job.

    What Coating Does

    Later upkeep becomes a wash and a fresh compatible coat instead of another patch.

Commercial Roof Coating Options for Hillview

Four ways we handle older metal roofs in Hillview.

Strip And Coat

Tar patches come off, screws are replaced, laps are detailed, and an acrylic or silicone coat goes on.

Bleed-Block Primer

Mastic that cannot come off cleanly is sealed under a primer the coating maker approves.

Panel Swaps

Rusted-through or mismatched panels are replaced with matching profiles before coating.

Crew spraying foam insulation across a commercial roof

Foam For Shop Comfort

Uninsulated garages can take foam under a topcoat for insulation as well as sealing.

Another Tar Patch This Spring?

Tell us how many patches the roof has collected and roughly when the last one went on. That helps us plan the strip-back before the coat.

(502) 293-5676

Planning A Job In Hillview

Five decisions that start with the old repairs.

  1. Inspect Your Roof

    We map every tar patch, caulked lap, and replacement panel, then check the steel under the worst patches for rust that has eaten through.

  2. Strip Or Seal?

    Patches that lift off cleanly are removed; well-stuck mastic gets a bleed-blocking base so it never stains the finished coat.

  3. Which Coating Fits?

    Most older garages and flex roofs drain well enough for acrylic; low sections that hold water take silicone instead.

  4. Who Issues The Permit?

    Roof permits start with Hillview city hall and the Bullitt County building inspector; confirm the address, since some mailing addresses near Louisville name another city.

  5. What Will It Cost Over Time?

    Strip-back labor is the big variable. Once coated, twice-yearly walks keep new patches from starting the cycle again.

Towns We Cover From Shepherdsville

We coat commercial roofs in Hillview and these nearby towns.

Not seeing your town here? Call us or send us a message.

Mount Washington

Miles From Shepherdsville

Mixed metal and shingle roofs along US 31E.

Lebanon Junction

Miles From Shepherdsville

Farm and shop roofs prone to condensation drip.

Brooks

Miles From Shepherdsville

Several metal roofs sharing one unincorporated lot.

Fairdale

Miles From Shepherdsville

Storefront roofs permitted through Louisville Metro.

Pioneer Village

Miles From Shepherdsville

Roofs checked closely after hail for split coating.

Hebron Estates

Miles From Shepherdsville

Church and school-area roofs coated around occupancy.

Hillview Metal Roof Coating Questions

Answers for owners of older metal buildings in Hillview.

Where do Hillview owners confirm permit rules?

Hillview is its own city in northern Bullitt County beside Louisville Metro, so start with Hillview city hall and the Bullitt County building inspector rather than a Louisville office. Describe the scope clearly: coating only or with panel and screw replacement, square footage and slope, units moved or raised, and gutter changes. Check the address near the Metro line.

What do older Hillview metal buildings need before coating?

The layers of past patching come first: tar over screw heads, mismatched replacement panels, and caulk along the laps. Tar and asphalt mastic bleed through many light coatings, so they are scraped back or sealed under an approved bleed-blocking base. Mismatched panels can leave gaps between unlike ribs, and those laps get careful sealing.

How are panel laps sealed on an older roof?

End laps and side laps get a reinforced detail, usually sealant or a base coat with polyester fabric embedded over the joint, before the full roof is coated. Old caulk is cut out and the joint cleaned and dried first, since laps move as the steel expands and contracts and need more material than flat panel areas.

Can a coating go over the old tar patches?

Only after they are dealt with. Loose patches come off; patches stuck tight can stay if the coating maker approves a bleed-blocking primer over them. Coating straight over raw tar leaves brown stains bleeding through a white coat and can keep the coat from bonding to the panel.

Do you check the framing on older buildings?

Where we can reach the underside, yes. Rusted purlins, rotted wood framing on converted buildings, or daylight through the panels change the plan from coating to repair. Garages with interior ceilings get a look through access points, or from the roof at the eaves.

Will the coating hide mismatched panels?

The field coat covers every panel in one color, usually white, so mismatched replacement panels disappear under it. The difference that matters sits at the laps: unlike rib shapes leave gaps that hold water, and those joints get sealant and fabric before the color coat goes on.

Clear The Patches On Your Hillview Roof

Enter the roof size for a ballpark range, or call and describe the repairs the roof has collected.

Call Us (502) 293-5676