Roof Lifespan Calculator
Estimate roof age, remaining life, and replacement window. Based on material type, climate, and maintenance.
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Roof Lifespan Estimation
Base lifespan by material: Asphalt 20-25, Metal 40-70, Tile 50-100
Manufacturer typical
Climate: Harsh reduces 15-20%, Mild may add 10%
UV, freeze-thaw, hail
Maintenance: Good adds 10-15%, Poor reduces 15-20%
Inspections, repairs
Lifespan varies by material quality, installation, and conditions. These are typical ranges. Get a professional inspection for accurate assessment.
Reference: NRCA, manufacturer warranties
Frequently Asked Questions
3-tab: 15-20 years. Architectural: 20-30 years. Quality installation and ventilation extend life.
Plan replacement when roof reaches 75-80% of expected lifespan, or when you see widespread damage, curling, or granule loss.