Your roof won’t last forever, but knowing its expected lifespan can help you plan for maintenance or replacement. While most roofs last between 20 and 25 years, several factors influence their durability. The quality of materials, exposure to harsh weather, regular maintenance, and the original installation all play a role in determining longevity. If you’re unsure whether to repair or replace your roof, consider whether the fix will significantly extend its lifespan or if a full replacement is the better investment.