The lifespan of a roof varies based on materials, installation quality, weather conditions, and maintenance. A well-installed and well-maintained roof can last anywhere from 20 to 50 years. Signs such as curling shingles, buckling, or water damage may indicate the need for replacement, particularly if your roof is over 20 years old. The time it takes to replace a roof varies based on factors like size, complexity, materials, and weather conditions. However, most residential roofs can be replaced efficiently in just a few days. Trust Younger Exteriors for an efficient yet high-quality replacement.