The roof is one of the most durable parts of the home. The roof is made to withstand every meteorological occurrence possible. Your roof can withstand hail, snow, rain, and sunlight. Without your roof, your house could be vulnerable to these conditions, and you will be unprotected from all the possible conditions of the atmosphere.
Most of the time, homeowners let their roof the way it is until a significant problem has affected other parts of the house. Yes, checking your roof could sometimes be a pain in the neck if you try to check it yourself, it also hurt your pockets if you wish someone to inspect your roof and maintain it for you.