Metal roof coatings
Address the seams and fasteners before the field
Commercial metal roofs often develop trouble at laps, exposed fasteners, penetrations, and edges. Coating can be an option when panels and structure remain sound, but those details need repair and treatment before the field receives a protective coating.
01 / Evaluate
What matters on a metal roof
An evaluation should distinguish surface weathering from corrosion or panel damage that needs replacement. It also checks the points where metal movement and water flow put stress on the assembly.
- Loose or missing fasteners
- Panel laps and end seams
- Rust and deteriorated panels
- Flashings, transitions, and penetrations
02 / Plan the work
Repair, prepare, then coat
A metal restoration can involve replacing failed fasteners or panels, treating rust, cleaning and priming, reinforcing seams, and applying a compatible coating to the specified thickness.
- Correct failed details
- Treat corrosion as required
- Use adhesion and primer guidance
- Check coverage and final details
03 / Know the limit
Coating cannot replace failed metal
Severe corrosion, damaged panels, or structural movement may call for panel replacement or a different roofing plan. The evaluation determines whether the existing roof is a workable base.
Questions and answers
Questions about Metal roof coatings
Roof condition determines the recommendation. An evaluation can answer questions specific to your building.
Check my roof →Can rusted metal be coated?
Some surface corrosion can be treated as part of a specified system. Severely deteriorated panels need another repair approach before coating can be considered.
Will coating cover loose screws?
Loose or failed fasteners need to be addressed first. Covering them without repair leaves the underlying leak path in place.
Are all metal coating products the same?
No. Compatibility, primer, detail treatment, application rates, and maintenance vary by manufacturer and the condition of the roof.
Before you decide
Can your roof be restored instead of replaced?
Tell us about the roof and its current problems. Higher Roof Solutions can help determine whether this approach fits.