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Life Span. Asphalt shingles generally last 15 to 30 years, according to U.S. Inspect. Their life span depends on several factors, including shingle weight, roof slope (to shed water), sun exposure, shingle color (light colors absorb less heat and last longer) and climate.How shingles are stacked in storage also matters.ife Span. Asphalt shingles generally last 15 to 30 years, according to U.S. Inspect. Their life span depends on several factors, including shingle weight, roof slope (to shed water), sun exposure, shingle color (light colors absorb less heat and last longer) and climate.
1 Wood shingles and shakes -- Wood roofing has a target lifetime of 30 years, but it can last much longer under moderate weather conditions.  Metal -- The International Association of Certified Home Inspectors projects metal roofing to last between 40 to 80 years. The Metal Roofing Alliance gives a life expectancy of at least 40 to 60 years.