The answer to 'how often to replace metal roof' is that a properly installed and maintained metal roof can last 40-70 years or more. Metal roofs are one of the most durable roofing materials available, with a lifespan significantly longer than traditional asphalt shingles which typically need to be replaced every 15-25 years. However, the exact lifespan of a metal roof can vary depending on factors like the quality of the metal, the installation, and the local climate conditions.
Regular inspections and maintenance are key to maximizing the lifespan of a metal roof. This includes checking for any damage, rust, or leaks and addressing them promptly. With proper care, a metal roof can provide reliable protection for your home for decades.