What Roof Coating Work Looks Like

Preparation, detailing and finished systems — the stages that decide whether a coating lasts.

Most of a coating project is invisible in the finished result. These images show the stages that actually determine how long a roof lasts — surface preparation, seam and fastener detailing, and a correctly applied reflective system. The images below illustrate the types of commercial roof coating work described on this site.

Weathered corrugated metal roof with surface staining and exposed fasteners before any coating
Before. A metal roof at the point where the decision actually gets made — surface staining and exposed fasteners, but no failure yet that forces a tear-off.
The same corrugated metal roof after coating, with reinforced seam stripes visible across the panels
The same roof the following day. Seams and fasteners are reinforced individually before any field coat, because that is where metal roofs leak.
Gray concrete tile roof part-way through coating, sealed joints showing white against untreated tile
Part-way through a tile roof. The white lines are sealed joints — the detailing work that decides how long the finished system lasts.
Roofer spray-applying white reflective coating along the length of a concrete tile roof
Field coat going on. Rate of application is the difference between a system that reaches its rated life and one that does not.
Concrete barrel tile roof after a full white reflective coating, ridge and field evenly covered
A completed tile roof. The color change is the visible part; the coverage over the ridge and into every joint is the part that matters.
Aged and soiled commercial flat roof with rooftop units in place before restoration
A commercial flat roof before restoration — soiled and weathered, still sound enough to be worth saving.
Bright white reflective coating covering a commercial flat roof after restoration
The same class of roof after a reflective system. The building never stopped operating while the work was done.
Roof vent curb sealed and coated where the penetration meets the roof surface
A vent curb sealed and coated. Penetrations are detailed as part of the work rather than coated around, which is where retrofit systems tend to fail first.

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