Dirty Surface
Coating rolled over dirt or chalk lets go in sheets. Pressure washing and drying fix that on the next coat. Chalky residue shows on a fingertip.
Peeling Coatings
Lansdowne Metal Roof Coating Contractor
Restoring Peeling Roof Coatings by Finding Why They Let Go
As a Lansdowne metal roof coating contractor, we investigate why an old coating is peeling before adding anything, then strip, prime, and recoat.
Metal Roof Coating for Lansdowne Roofs That Are Peeling
Lansdowne metal roof coating calls often start with a roof that was coated before and is now peeling. We check whether the failure sits only at old patches or runs across whole panels. Putting more material over a failing bond carries the weakness forward, so the tests decide whether to strip, prime, or recoat.
Peeling often traces back to a single missed step from the first coating: a dirty surface, a skipped primer, or the wrong product on top of another. Finding that step is how the next coat lasts.
- Peel areas mapped across the roof
- Pull tests on remaining coating
- Cause found: dirt, primer, or product mismatch
- Strip or prime as the results show
Lansdowne Metal Roof Coating Failures We Trace
Peeling follows a cause. These are the five we find most often on recoat jobs.
Wrong Combination
Acrylic over silicone and some coatings over oily patches never bond. Product mismatch shows up as wide, clean peels. Clean peels with no residue show a mismatch.
Rust Underneath
Rust growing under the old coating lifts it from below. Blisters with orange beneath point to this. Rust stains under blisters confirm it.
Moving Laps
Unreinforced laps crack the coating and peel it back as the panels move. Fabric at those joints stops the cracking. Cracks along laps line up with the seams.
Too Thin
Thin application, below what the product calls for, wears through and curls at the edges within a few years. Gauge readings on old film show the thickness.
Benefits of Coating Your Roof
A peeling roof can be recoated or replaced. The adhesion tests decide which path makes sense.
| What Changes | Coating The Roof | Replacing The Roof |
|---|---|---|
| Planning cost | About $2.50 to $4.00 per square foot plus stripping | About $5 to $8 per square foot |
| Old coating | Stripped or primed per test | Removed with the old panels |
| Cause of peeling | Found and corrected | Removed with the old roof |
| Metal condition | Treated where exposed | All new |
| Recoat later | Same-family coating | New finish maintenance |
| Testing | Pull tests and test patches documented | No testing of old coating needed |
Commercial Roof Coating Options for Lansdowne
After the tests, peeling roofs fall into one of these four groups.
Local Peeling
Spot Strip and Recoat
When peeling is confined to patches or laps, those areas are stripped and primed, then the whole roof gets a fresh coat.
Wide Peeling
Full Strip Before Coating
Wide failure across the panels means the old coating comes off entirely before any new system goes on.
Shops And Offices
Metal Roof Coating for Lansdowne Businesses With Older Coatings
Storefronts and offices with a coating from years ago often need a wash, a test, and a matching recoat.
Cost
Lansdowne Metal Roof Coating Cost
The planning range is about $2.50 to $4.00 per square foot of roof, with stripping old coating adding prep time.
Rust Blisters
Blister Opening and Rust Treatment
Blisters with rust beneath are cut open, cleaned to firm steel, primed, and patched before the new coat.
Prep
Pressure Wash and Dry
Every recoat starts with a full pressure wash and a dry surface, since dirt and chalk caused many of the failures we see.
Old Coating Peeling Before Your Lansdowne Metal Roof Coating?
Peeling has a cause, and recoating without finding it repeats the failure. Get a ballpark range and a roof walk.
How We Recoat Lansdowne Roofs With Metal Roof Coating
Recoat jobs add a testing stage at the start. The rest follows our usual order.
- Step 1
Inspect Your Roof
Peel areas are mapped and pull tests made on the coating that remains, along with laps, screws, and rust. Photos record every peel area.
- Step 2
Find The Cause
Test patches with the new system show whether to strip, prime, or recoat directly over the old film. Results show up within a few days.
- Step 3
Strip And Treat
Failed coating comes off by scraping or pressure washing, and exposed rust is primed. Loose flakes are bagged and removed.
- Step 4
Reinforce Laps
Laps and screws get fabric and base coat so movement no longer cracks the coating. Screws with lifted coating get resealed.
- Step 5
Recoat At Full Thickness
The new coating goes on at its listed thickness, checked with a gauge across the roof. Readings are shared with you at sign-off.
- Step 6
Document The Recoat
We hand over the adhesion test results and thickness readings, walk the roof with you, and point out any laps to watch during yearly checks.
Nearby Towns We Work In
Outside Lansdowne, these are the other communities where we coat roofs.
Outside these towns? Call us or send us a message.
Loading-Dock Warehouses
- Philadelphia
City warehouses with long screw rows and rusted laps.
- Norristown
Coating staged around trucks and dock doors.
Plants And Equipment Buildings
Older Patched Or Coated Roofs
- Lansdale
Old seam patches tested or stripped.
Questions About Metal Roof Coating in Lansdowne
Is another coating sensible for a peeling roof?
Only after finding why the old coating let go. We check whether peeling sits at old patches or runs across the panels, because more material over a failing bond carries the same weakness forward.
Where do I find Lansdowne metal roof coating near me for a recoat?
We serve Lansdowne directly. Call with the roof size and a description of the peeling, and we will test the old coating on a roof walk.
Can silicone go over a peeling acrylic coating?
Not over the peeling parts. Loose acrylic comes off first; firmly attached areas are tested with silicone patches before we commit.
How much does stripping old coating add?
Stripping adds prep days and labor on top of the coating range of about $2.50 to $4.00 per square foot of roof. Wide peeling costs more to remove than spot failures.
Will the new coating peel too?
It should hold when the surface is clean, the products are compatible, and the thickness is right. We document the adhesion tests and thickness so you can see each one was done.
Why did my roof coating peel after a few years?
The most common causes are dirt or chalk under the coating, a missing primer, incompatible products, or rust underneath. The pull tests and peel pattern tell us which one happened.
Can peeling coating be removed without damaging the metal?
Yes. Pressure washing and hand scraping take off loose coating without cutting into the steel. Any rust uncovered is treated and primed before recoating.
Is a peeling roof leaking?
Sometimes, and bare metal under peeling coating starts to rust. Leaks show up once rust reaches the laps and screws, so recoating sooner keeps repairs small.
Hire a Lansdowne Metal Roof Coating Contractor
Describe the peeling and the roof size, and we will test the old coating before anything new goes on.