average life of shingle roof
They run in flat, even rows as opposed to the textured and layered look of architectural shingles. Regular shingles have an average 15 to 20-year life. An architectural shingle roof has a 24 to 30-year life, with some super-. premium grades rated for up to a 40-year lifespan. And architectural shingles come in wider variety of. colors, subtly variegated color patterns, have greater. resistance to uplift in a windstorm, and have a. heavier granule covering.