Most roof problems don't fix themselves. A small leak you noticed last month is the same leak that's going to show up as a ceiling stain by next season. Missing shingles after a storm let water sneak under the layers and start rotting the wood underneath. Flashing that's pulled away from a chimney is a slow drip waiting to happen.
We've been on enough Memphis-area roofs to know that catching problems early saves you a lot of money down the road. A repair you can fix today for a few hundred dollars turns into a multi-thousand dollar repair if you let it sit.