A properly installed standing seam metal roof commonly lasts 40 to 70 years. Insurers’ depreciation tables give metal a far longer useful life than asphalt shingles, which in Texas often need replacing within 15 to 20 years. That difference shapes how much any future claim pays as your roof ages.
| Roof material | Typical lifespan in Texas | How insurers tend to treat it |
|---|---|---|
| Standing seam metal (Galvalume, Kynar 500® finish) | 40–70 years | Long useful life, slower depreciation |
| Asphalt shingles | 15–20 years (hail and heat shorten it) | Shorter useful life, faster depreciation; older roofs often paid at ACV or on a payment schedule |
Depreciation tables vary by carrier.
Book a free roof inspection. We’ll document your roof’s condition with photos so you know exactly what you have.
How insurers depreciate a roof
Every insurer works from a depreciation schedule, a table that says how much a roof’s value drops each year it ages. The numbers vary by carrier, but the pattern holds: the longer the assumed life, the slower the value drops. A 15-year-old shingle roof is often treated as near the end of its useful life. A 15-year-old metal roof is barely broken in. Across the Hill Country, where hail and summer heat are hard on shingles, that gap shows up quickly.
Actual cash value vs. replacement cost
- Replacement cost value (RCV) pays what it costs to replace your roof today, regardless of age, minus your deductible.
- Actual cash value (ACV) pays replacement cost minus depreciation, so an older roof gets a smaller check.
This is where lifespan pays off. Under ACV, a long-life metal roof loses value far more slowly than shingles, so the same age means a bigger check.
Texas roof payment schedules
Many Texas carriers now pay roof claims on a schedule tied to the roof’s age: full replacement cost on a new roof, stepping down to a fraction of it once the roof passes 20 years or so. Some schedules treat metal differently from shingles. If your policy has one, ask your carrier which schedule applies to a metal roof before you install.
How your roof’s age is checked at claim time
An adjuster wants three things: the installation date, the material and the condition. A clear paper trail removes the guesswork: the invoice, the warranty, and the Texas Impact-Resistant Roofing Installation form (PC068) if your roof qualifies. It’s the same principle as documenting hail damage in the first 48 hours. Good records make claims go smoother.
Why the finish matters
A roof’s rated lifespan assumes it holds up structurally. Galvalume protects the steel against corrosion at the base-metal level, and Kynar 500® PVDF resin-based finishes resist fading and chalking on the surface. Together they’re a big part of why standing seam roofs reach their full lifespan. A-Lert has installed more than 35 million square feet of metal roofing, backed by written product warranties of 20 to 40 years depending on the manufacturer and coating.
Frequently asked questions
Does a longer roof lifespan lower my premium every year?
No. Lifespan affects how your roof depreciates in a claim. Your premium is priced separately, often with its own discount for impact resistance. See how that discount works.
Do insurers dispute how old a metal roof is?
Rarely, when there’s documentation. Disputes are far more common with roofs that have no paper trail, so keep your installation records.
Does a new roof reset its age for insurance?
Yes. A full replacement starts the roof’s age over, which is why the installation date on your paperwork matters. Send your insurer the new roof details once the work is done.
Will insurance pay to replace my old roof with metal?
Usually only up to the value of the roof you had; you pay the upgrade difference. Here’s how that works in Texas.
Weighing whether metal makes sense for your home? See our guide to residential metal roofing in New Braunfels.
Want to know how much life your roof has left? Book a free roof inspection or request a quote.
This article is general information, not insurance advice. Depreciation and payment schedules vary by carrier and policy, so confirm the details with your insurer.