In conclusion, the lifespan of an asphalt roof is influenced by a multitude of factors, including the type of shingles used, the quality of installation, local climate conditions, and the level of maintenance performed. On average, homeowners can expect asphalt roofs to last between 15 to 30 years, with architectural shingles typically offering a longer lifespan. By investing in quality materials, ensuring proper installation, and maintaining the roof over time, homeowners can maximize the durability and longevity of their asphalt roofing systems.