Bare Spots and Lost Granules
Granules wash into the gutters as shingles age, leaving dark bare patches. Coating covers worn shingles that still lie flat, but bare fiberglass mat showing through means the shingle is spent.

As a Carmel shingle roof coating contractor, we coat shingled mansards and pitched sections on offices, clinics, and churches once the shingles and deck pass inspection.
Carmel shingle roof coating is the raised column. Spot repair and reshingling cover the roofs that coating should skip.
A shingle roof has to pass a few checks before coating makes sense. These are the ones we start with.
Granules wash into the gutters as shingles age, leaving dark bare patches. Coating covers worn shingles that still lie flat, but bare fiberglass mat showing through means the shingle is spent.
Strong wind catches tabs that have lost their seal. Loose tabs get resealed, and badly curled shingles point toward reshingling.
Step flashing and vent boots leak before the shingles do on many mansards. We reseal those details first.
Mansards on offices and retail centers, clinic entries, and church halls in Carmel carry most of the shingle roofs we coat.
Walking the roof finds soft decking where leaks have run for years. Rotted deck boards have to be replaced, which changes the coat-or-reshingle call.
Ice that forms at the eaves in late winter pushes water under the lowest shingle courses. We check eave shingles and flashing closely for that damage.
Shingle coating next to the four other systems we install, with what each one needs checked first.
| System | Where It Fits | Check First |
|---|---|---|
| Commercial Metal Roof Coating | Metal panels elsewhere on the property | Screws, laps, and rust |
| Silicone Roof Coating | Flat roofs behind a mansard | Standing water at drains |
| Acrylic Roof Coating | Sloped metal canopies and additions | Drainage and cure weather |
| Spray Foam Roofing | Flat sections needing insulation | Dry insulation under the deck |
| Shingle Roof Coating | Mansards and pitched shingle sections | Flat tabs and a firm deck |
On a shingle roof that passes inspection, coating adds a protective layer without the cost and disruption of a tear-off.
Send a photo of the worst section. We will tell you whether coating or reshingling fits and price it.
Shingle coating starts with an honest look at whether the shingles can carry a coating at all.
We check whether the shingles lie flat, test the deck for soft spots, and look at flashing, valleys, and vents. If the shingles are past saving, we say so.
Missing shingles get replaced, loose tabs get resealed, and step flashing and vent boots get sealed before any coating goes down.
Loose granules, dirt, and debris come off with a gentle wash that avoids stripping more granules from the shingles.
The coating goes on by roller or sprayer in layers, with thickness checked on each section and extra attention at valleys and edges.
Landscaping, walkways, and entrances get covered during work and cleaned after, since mansard roofs sit right above where people walk.
Metal and low-slope roofs on the same property take other systems.

Metal panel roofs on the same property.
Commercial Metal Roof Coating details

Low-slope sections that need insulation and drainage slope.
Spray Foam Roofing detailsCost, lifespan, and the coat-or-reshingle call for commercial shingle roofs.
It falls within our published coating range of about $2.50 to $4.00 per square foot, confirmed after inspection.
A low-pitch roof with few valleys costs less to coat than a steep mansard with dormers, high eaves, and many shingles to reseal first.
It rests on the shingles underneath, the coating thickness, the slope, and sun exposure. Flat, well-fastened shingles hold a coating much longer than curled or brittle ones, and freeze-thaw cycles widen any existing cracks, so starting condition matters most.
Small office buildings, medical offices, churches, and retail centers with shingled mansards or pitched sections. The shingles need to lie flat and stay attached over a firm deck, and we replace missing shingles and seal flashing before coating.
Coating fits an aging shingle roof that is still intact, with flat shingles and a firm deck. Reshingling fits when shingles are curled, brittle, or missing over large areas, or the deck is soft. The inspection shows which group your roof falls in.
Yes, it evens out faded and patchy color across the mansard. We show color options before work starts so the finish suits the building's brick or siding.
Yes. When a coated shingle roof eventually wears out, it is torn off and reshingled the same way an uncoated roof would be.
Yes, light foot traffic is fine once the coating cures. Mansards rarely see foot traffic, but pitched roofs with vents or units get a path planned so service technicians avoid scuffing the same spots.
Send a photo of the mansard or pitched section. We will check the shingles and price coating, or tell you when reshingling fits better.