How to Read an Exterior Coating Warranty: Prorated vs. Non-Prorated, Labor vs. Material, and What Voids It

The number of years is the least important part of an exterior warranty. What matters is whether coverage shrinks over time (prorated or not), whether it pays for labor or only material, whether it transfers when you sell, and what the exclusions leave out. Two "25-year" warranties can differ on all four.

Almost every exterior paint and coating product sold in Chicagoland comes with some kind of warranty. A lot of them look the same on a brochure. They aren't. Here's how to read one before you sign, so you know what you're actually buying.

1. Prorated vs. Non-Prorated

This is the big one.

A prorated warranty pays less as time goes on. The exact formula varies, but the idea is simple: a failure in year 3 might be fully covered, while the same failure in year 18 might get you a small percentage of what it costs to fix. By the back half of a long prorated warranty, the coverage can be close to nothing.

A non-prorated warranty gives you the same coverage in the last year as in the first. If the finish fails in year 22, you're covered the same way you would have been in year 2.

Look for the words "prorated," "pro rata," or a table of percentages by year. If a warranty doesn't say either way, ask, and get the answer in writing.

2. Labor vs. Material

Most paint warranties are product warranties. If the paint fails, the manufacturer gives you more paint or refunds what you paid for it. That sounds fine until you remember that on an exterior job, the paint is a fraction of the bill. Prep, repairs, ladders and application are most of it.

A warranty that covers labor and material pays for the work of fixing a failure, not just the can. Check who stands behind the labor portion, too. If the manufacturer covers product and the contractor covers application, the labor coverage is only as durable as that contractor.

3. Transferable or Not

A transferable warranty passes to the next owner when you sell. That keeps its value inside the house, and buyers notice. An inspector's report that flags "exterior paint will need attention" reads very differently when it comes with years of documented coverage.

Things to check:

• Does it transfer automatically, or does the new owner have to register it?
• Is there a fee or a deadline after closing?
• Does it transfer once, or to every future owner during the term?

4. What It Actually Covers

Warranties describe the failures they cover, usually some combination of peeling, cracking, chipping, blistering and fading. Read that list closely. "Fading" might only count beyond a measured threshold. "Cracking" might exclude cracks in the surface underneath.

Federal rules require warrantors to state clearly what is and isn't covered, and they draw a line between "full" and "limited" warranties. The FTC's guide to federal warranty law lays out the standards a full warranty has to meet, including covering anyone who owns the product during the term and providing service at no charge. Most coating warranties are limited, which is legal and normal. It just means the specific terms are where the real answers live.

5. The Exclusions Section

Every warranty has one, and it's worth reading slowly. Common exclusions on exterior coatings include:

• Structural movement, settling or new cracks in the substrate.
• Moisture coming from inside the wall, like a plumbing leak or ice damming.
• Impact damage, fire, and severe weather events.
• Areas that weren't part of the original job.
• Later work by someone else, such as new siding patched in or a trade drilling through the finish.

None of those are unreasonable. What you want to avoid is an exclusions list so broad that it quietly swallows the coverage.

How the Rhino Shield Warranty Reads Against This Checklist

Since you're reading this on our site, it's only fair to put ours through the same questions. As described on our 25-year warranty page:

• Term: 25 years.
• Prorated? No. Coverage in year 25 is the same as in year one.
• Labor and material? Both. It covers product performance and professional application.
• Transferable? Yes, it passes to the new owner if you sell.
• What it protects against: cracking, chipping, peeling and excessive fading.

Your estimator will give you the full written warranty and walk through the details, including exclusions, before you sign. Ask them the same questions above. A good warranty holds up to them.

And remember what the warranty is really standing in for. Traditional exterior paint in Chicagoland gets redone every 5 to 7 years. A non-prorated, transferable warranty on a properly applied multi-coat system is a way of putting that cycle in writing as something you won't be paying for again.

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