Harrisburg Metal Roof Coating Contractor

That comes down to film thickness, the condition of the metal at the start, and how much foot traffic the roof gets. A system applied at its specified thickness over well-prepared steel holds up far longer than a thin coat over chalky paint. Periodic inspections and quick repairs at service paths add years to any coating.

Replacement wins when perforation runs across large areas, the connections to the framing have failed, or wet insulation spreads through whole bays. Coating works with a roof that still has firm panels and fastenable framing.

We base the call on what the inspection finds under the surface, since fresh coating over a failing roof only looks new.

Coating plans out at about $2.50 to $4.00 per square foot of roof, with replacement closer to $5 to $8. Rust removal, seam repair, and fastener sealing move a warehouse job within that range, along with roof size, lift access, the coating chosen, its thickness, the number of coats, and how many penetrations need flashing.

Yes, at joints that already have small splits or hold trapped water. Ice expands in those gaps and works them wider each winter. We open suspect joints, check that water drains away from them, and use a repair that flexes with the panels, because a stiff patch moves the stress to its own edges.

Storm wind lifts edge flashing, loosens trim, and throws debris that gouges coating near penetrations, all without bending a panel. After a storm we check the perimeter, the flashings, and areas where branches or hail hit, and confirm the fasteners still hold, since a clean-looking field says little about the edges.

The reviewing authority for the property answers them, under Pennsylvania's Uniform Construction Code. We help by describing the actual job: which panels and flashings get repaired, which materials stay in place, and which coating system goes on top. A defined project gets a clear answer far faster than a general request to coat a roof.

It will when the panels, their attachment, and the expansion details are in good shape. Long runs move with temperature, so we inspect laps, end joints, and penetrations along the full drainage path. Old repairs and isolated wet spots on a big open roof often set more of the preparation than the square footage does.