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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.
What is the average life span of a cedar roof? The life expectancy of a roof will vary depending on many factors. Some of these factors include the following: age, environment of installation area, quality of wood, quality of installation, care and maintenance performed, foot traffic, and amount of overhanging trees.