If Your Roof
Has flat shingles with most granules left
Firm, flat shingles hold a coating well when the shingle maker allows it.
Start WithCompatibility check, then coating
Commercial Shingles
Philadelphia Shingle Roof Coating Contractor
Coating Commercial Shingles Only When They Still Lie Flat
As a Philadelphia shingle roof coating contractor, we coat commercial asphalt shingles only after written product approval and a close look at granules, curling, and flashing.
- Written Maker Approval First
- Shingles Checked By Hand
- Wall Flashing Reviewed
- Honest Replacement Calls
Can Your Building Take Philadelphia Shingle Roof Coating?
Philadelphia shingle roof coating has a narrow fit. The shingles, the coating, and the roof deck all have to pass before we price it.
If Your Roof
Has a mansard face over brick
Steep shingle faces on offices and stores take a coating applied by hand around windows and trim.
Start WithMansard coating
If Your Roof
Leaks only at a wall or chimney
Flashing failures need flashing repair, which coating over shingles leaves untouched.
Start WithFlashing repair
If Your Roof
Curls, cracks, or sheds granules everywhere
Worn shingles and soft decking point to a new roof, since coating would seal in the damage.
Start WithShingle replacement
Shingle Roof Coating Checks on Philadelphia Commercial Buildings
Shingles fail differently from metal. These five areas tell us whether coating is worth discussing at all.
Shingle Field
Granule loss, cracking, and curled tabs show how much life is left. Shingles that crack when bent are too brittle to coat. A bend test shows brittleness quickly.
Walls And Mansard Tops
Flashing where the shingle face meets a flat roof or brick wall leaks often. Those joints are checked and repaired before any coating. Counter flashing is checked at the brick.
Decking
Soft spots underfoot mean wet or rotted sheathing. Wet decking needs replacement, so we press-test the field and check the attic side where possible. Attic checks find soft sheathing early.
Gutters And Valleys
Valleys carry the most water on a shingle roof. Worn valley shingles or metal get repaired before we talk about coating. Valley metal gets resealed or replaced.
Vents And Penetrations
Plumbing vents and exhaust caps rely on boots and flashing that dry out. Each one is resealed or replaced as part of the prep. Vent boots are swapped when cracked.
Commercial Roof Coating Options for Philadelphia
Commercial shingle roofs have fewer coating choices than metal or flat roofs. These four cover the realistic options.
Approved Only
Shingle Roof Coating on Commercial Buildings
Shingle-rated coatings go on churches, offices, and mansard faces only when the shingle and coating makers both allow it.
Cost
Shingle Roof Coating Cost
The coating range is about $2.50 to $4.00 per square foot of roof, against about $5 to $8 for replacement, after compatibility is confirmed.
Repair
Flashing and Valley Repair
Some shingle roofs need only flashing and valley work to stop leaks, with no coating at all.
Replace
New Shingles or a New System
Brittle, curling shingles call for replacement, and a low-slope section nearby may suit a different roof entirely.
Benefits of Coating Your Roof
For a commercial shingle roof, coating and replacement solve different problems. This table shows when each one fits.
| What Changes | Coating The Roof | Replacing The Roof |
|---|---|---|
| Planning cost | About $2.50 to $4.00 per square foot | About $5 to $8 per square foot |
| Shingle condition | Flat, firm, granules mostly intact | Curled, brittle, or bare |
| Maker approval | Needed from shingle and coating makers | Set by the new shingle |
| Deck | Dry and firm across the roof | Soft areas replaced |
| Flashing | Repaired before coating | Rebuilt with the new roof |
| Granules | Kept in place under the coating | New granule surface |
Shingle Roof Coating in Philadelphia or a New Roof?
We will tell you which one fits after a roof walk. Start with a ballpark range for both.
How We Handle Shingle Roof Coating in Philadelphia
Shingle coating has an extra gate at the start. If the roof fails it, we stop and talk about replacement.
- Step 1
Inspect Your Roof
We bend-test shingles, check granule loss and curling, press-test the deck, and look at flashing at walls, vents, and valleys.
- Step 2
Confirm Compatibility
The shingle maker and coating maker guidance are checked in writing. Without both approvals, we recommend repair or replacement instead.
- Step 3
Repair Flashing
Wall flashing, valleys, and vent boots get fixed so the coating is never asked to stop a flashing leak.
- Step 4
Clean Gently
Shingles are cleaned at low pressure to remove dirt and moss without stripping granules, then left to dry.
- Step 5
Apply The Coating
The shingle-rated coating goes on by roller or sprayer at the maker thickness, with extra care at edges and trim.
Systems for the Rest of the Building
Shingled faces often sit next to flat or metal roofs. These systems cover them.
Commercial Metal Roof Coating
Metal additions, canopies, and warehouse sections beside the shingled building take this system.
Commercial Metal Roof Coating in Philadelphia
Silicone Roof Coating
Inside a mansard, the flat roof often holds water after storms and suits silicone.
Silicone Roof Coating in Philadelphia
Acrylic Roof Coating
Sloped metal sections that drain well can take acrylic.
Acrylic Roof Coating in Philadelphia
Spray Foam Roofing
Flat roofs needing insulation and a smoother surface gain both from foam.
Spray Foam Roofing in PhiladelphiaShingle Roof Coating Questions From Philadelphia Owners
Can you put roof coating over shingles?
Only when the specific shingle and coating products allow it and the shingles are still flat and firm. A coating made for metal roofs belongs on metal; shingles need a product rated for them.
How long does asphalt roof coating last on shingles?
Nobody can promise a number for a coating on aging shingles. It depends on how much life the shingles had left, the deck under them, and the coating thickness, which is why the inspection carries so much weight.
Will coating stop a leak at the chimney or wall?
Leaks at walls and chimneys come from flashing. That flashing gets repaired directly, because a coating over the shingles leaves the gap at the wall in place.
Do churches and older offices qualify more often?
Building type matters less than shingle age and condition. Mansard faces and steep sections that see little foot traffic sometimes qualify when the shingles are still firm.
Does a shingle coating change the permit picture?
Coating alone is usually maintenance, but deck or flashing replacement can be a permit item. In the city, the Department of Licenses and Inspections reviews the scope, so we list each part separately.
What does shingle roof coating cost compared with new shingles?
The coating range is about $2.50 to $4.00 per square foot of roof against about $5 to $8 for replacement. Compatibility has to be confirmed first, and flashing and decking repairs add to either path.
Are shingle roof coating on commercial buildings and residential coatings the same?
We only work on commercial buildings, and the coating has to be rated for the specific shingle on the roof. Product approval, the building use, and access all shape the scope.
Can moss and algae be cleaned before coating?
Yes, with a low-pressure wash and a cleaner the coating maker allows. Scrubbing hard strips granules, so we clean gently and let the shingles dry completely before any coating.
Talk With a Philadelphia Shingle Roof Coating Contractor
Send photos or call about the shingles. We will tell you plainly whether coating or replacement fits.