The answer to 'how often to replace roof' is that most roofs need to be replaced every 20-25 years, depending on the roofing material and climate. Asphalt shingle roofs typically last 15-20 years, while metal, slate, and tile roofs can last 40-50 years or more with proper maintenance. Regular inspections and prompt repairs can help extend the life of your roof.
It's important to monitor your roof for signs of wear and tear, such as missing or damaged shingles, leaks, or excessive granule loss. If your roof is nearing the end of its lifespan or showing significant damage, it's time to consider a roof replacement. This can help prevent further damage to your home and ensure your family's safety.