Metal Roof vs. Asphalt Shingles: A 30-Year Cost Comparison
Quick answer
Over 30 years, a metal roof usually costs less than asphalt despite a higher upfront price. Asphalt shingles last 15–30 years and are typically replaced two to three times in the life of one metal roof, so the metal roof's higher initial cost is offset by avoided replacements, lower energy bills, and possible insurance savings.
Upfront cost: asphalt wins
There is no getting around it — asphalt shingles are cheaper to install, typically $4–$8 per square foot versus $5–$16 for metal, with premium aluminum at the upper end. If the only number that mattered were the initial invoice, asphalt would win every time. But a roof is a decades-long purchase, and the initial invoice is only the first of several for asphalt.
Lifespan and replacement: metal wins big
This is where the comparison turns. Asphalt lasts 15–30 years; metal lasts 40–70+ and often a lifetime. Over 50 years you generally re-roof with asphalt two or three times — paying for material, tear-off, disposal, and labor each time — while a metal roof is bought once.
| Factor | Aluminum metal roof | Asphalt shingles |
|---|---|---|
| Upfront cost | $9–$17 / sq ft | $4–$8 / sq ft |
| Lifespan | 50+ years (lifetime) | 15–30 years |
| Replacements in 50 yrs | 0 (one roof) | 2–3 |
| Maintenance | Minimal; never rusts | Periodic repair; granule loss |
| Energy | Cool Roof reflective finish | Absorbs heat |
| Resale / ROI | ~60–70% recouped | Lower |
The 30–50 year total-cost picture
Add it up over the life of one metal roof and the gap narrows and then reverses: the metal roof's single higher invoice is offset by the two or three asphalt invoices you avoid, plus lower cooling bills and a possible insurance discount. For a homeowner planning to stay put, metal is usually the cheaper roof by the time the second asphalt replacement would have come due — and you get a better-looking, more durable roof the whole time.
Frequently Asked Questions
Is a metal roof cheaper than shingles in the long run?
Usually yes. Asphalt is cheaper upfront, but because metal lasts 50+ years versus 15–30 for asphalt, you avoid two or three replacements. Over the life of one metal roof, the total cost of ownership typically comes out lower.
How many times will I replace an asphalt roof vs. a metal roof?
In a 50-year window you typically replace asphalt two to three times, versus installing one metal roof. Those avoided replacements — material, tear-off, and labor — are the core of metal's long-term cost advantage.
Is a metal roof worth two to three times the cost of asphalt?
For owner-occupants, generally yes: the higher price buys 50+ years of service, ~60–70% resale ROI, lower energy bills, and potential insurance savings. The case is weaker only if you plan to sell within a year or two.
Which adds more home value, metal or asphalt?
Metal. It recoups roughly 60–70% of its cost in home value and, with a transferable lifetime warranty, is a stronger selling point than a standard asphalt roof.
Sources
- HomeGuide — Metal Roof Cost (2026) — Cost & lifespan ranges
- Angi — Metal Roofing Facts & Value — ROI & resale
Explore Interlock Metal Roofing
Last reviewed 2026-07-11 · Reviewed by Scott Plumptree, Director of Marketing