The answer to 'lifespan of roof installation' is that a properly installed roof can last 20-50 years, depending on the roofing material and climate. Asphalt shingles typically last 15-30 years, while metal and tile roofs can last 40-70 years with proper maintenance. The lifespan of a roof also depends on factors like weather, roof ventilation, and how well the roof is maintained by the homeowner.
Regular inspections and timely repairs are key to maximizing the lifespan of a roof. Homeowners should have their roof inspected by a professional roofing contractor every 3-5 years to catch and address any issues before they become major problems.