Wind
Missing and Broken Shingles
- You See
- Bare spots, or shingle pieces in the lot after a windstorm.
- What It Means
- Wind lifts and snaps tabs along the edges and ridge. Matching shingles go back in before the coating, so it covers a complete surface.

As a Merrillville shingle roof coating contractor, we replace broken shingles, seal flashing and exposed nails, then coat worn asphalt roofs that still lie flat.
Merrillville shingle roof coating only helps shingles that still do their job. Look at your roof against these five details first.
| Roof Detail | Fits Coating | Replace Instead |
|---|---|---|
| Shingle Shape | Flat, edges lying down | Curled, cupped, or lifting |
| Granules | Most granules still in place | Bare mat showing in patches |
| Brittleness | Flexible when bent gently | Cracking when touched |
| Flashing | Intact, needs resealing | Rusted out or missing |
| Deck | Firm underfoot | Soft or sagging areas |
Coating seals a tired shingle roof once these four problems are repaired.
Wind
Steeples And Walls
Sun
Fasteners
Shingle roofs on commercial buildings land on one of three paths.
Worn but flat shingles with most granules get cleaned, repaired, and coated with a product made for asphalt.
Roofs with a few bad slopes get those slopes reshingled first, then the whole roof is coated so it wears evenly.
Curled, brittle shingle roofs need replacement, while metal or low-slope parts of the same building can still be coated in the same season.
Metal roof coatingA worn shingle roof as it stands now, and the same roof after repairs and coating are complete.
Grit at the downspouts means the shingles are wearing. Catching it while they still lie flat keeps coating on the table.
Shingle coating follows five steps, starting with an honest check of the shingles.
Shingles get bent-tested for brittleness, granule loss is mapped by slope, and flashing at walls, steeples, and vents gets a close check.
Missing, cracked, and torn shingles are swapped for matching ones, and popped nails are reset and sealed.
Low-pressure washing removes dirt, moss, and loose granules without stripping the granules still holding on.
Wall, steeple, and vent flashing gets resealed or replaced so the joints are tight before the coating covers them.
A coating rated for asphalt shingles is rolled or sprayed across each slope to the thickness the product requires.
Churches and offices often have flat or metal sections beside the shingles.

Metal additions such as a fellowship hall or garage get rust and screw work, then coating.
Commercial Metal Roof Coating in MerrillvilleFlat sections over entries or classrooms that hold water after rain take silicone.
Silicone Roof Coating in Merrillville
Pitched metal over a shop or storage wing that drains well fits acrylic coating.
Acrylic Roof Coating in Merrillville
Cold flat sections can gain insulation with spray foam and a protective topcoat.
Spray Foam Roofing in MerrillvilleChurches, coating over shingles, service life, cost, color, and later replacement.
It helps when the shingles are worn but still flat and holding granules. Coating seals small cracks and holds loose granules. On church roofs we first replace damaged shingles and reseal flashing at steeples, walls, and vents, and services continue below while the work is done.
Yes, with a coating made for asphalt shingles. The roof is cleaned, missing or broken shingles are replaced, and flashing and exposed nails are sealed first. Curled, brittle, or bare shingles are past helping, and for those we recommend replacement.
Ratings commonly run about 10 to 15 years, depending on the product, its thickness, and the shingles underneath. Freeze-thaw, spring hail, and summer sun all wear on it. A yearly inspection and a recoat while the first layer is still attached keep the shingles covered longer.
Shingle coating sits inside the published coating range of about $2.50 to $4.00 per square foot, with replacement at about $5 to $8 per square foot. Slope, how many shingles need replacing, flashing work, cleaning, and access set your final price after the inspection.
Steeple and wall flashing is reached from the roof, with ladders or a lift set outside the building. Services and classes continue below, and the sanctuary or classrooms stay clear of equipment.
Yes, the roof takes on the coating's color, usually a lighter, even tone across every slope. Ask about color choices during the estimate if the look matters for a church or storefront.
They can. When the coated shingles finally wear out, they come off in a normal tear-off, and new shingles go on as with any other roof.
Send a few details about the shingles, or start with a ballpark range.