Free roofing tool

Roof age & lifespan calculator

See how much life your roof has left based on its install year and material.

Enter the year your roof was installed and its material to estimate how many years it has left — and whether it’s time to plan a replacement.

Year roof was installed Roof material

Estimated life remaining

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A rule of thumb — sun, storms, and ventilation change real lifespan. Get an inspection.

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How long roofs last

Rated lifespans are a starting point: 3-tab asphalt ~20 years, architectural asphalt ~30, metal 40–70, tile 50+, slate 75–100. Harsh sun, big storms, and poor attic ventilation cut those numbers; a well-ventilated roof in a mild climate can beat them. Once you’re past ~80% of the rating, start planning. See signs you need a new roof.

Cost ranges reflect 2026 U.S. installed prices (BLS producer/labor data, Remodeling Cost vs. Value, and manufacturer pricing). Your real price depends on your roof, region, and pro — see the full cost guide.

FAQ

Roof Age & Lifespan Calculator questions

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How long does a roof last?

It depends on material: asphalt shingle 15–30 years, metal 40–70, tile 50+, slate 75–100. Climate, install quality, and ventilation shift the real number.

How do I know how old my roof is?

Check home purchase or permit records, a prior roofing invoice, or ask the seller. A roofer can also estimate age from wear during an inspection.

When should I replace my roof?

Plan a replacement once your roof passes about 80% of its rated life, or sooner if you see curling, bald, or missing shingles, repeated leaks, or sagging. Our repair-or-replace guide can help.

Can I extend my roof’s life?

Yes — good attic ventilation, prompt repairs, keeping gutters clear, and removing debris and moss all add years. Regular inspections catch small problems before they spread.

Your roof can’t wait. Let’s get it done right.

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