This is an old roof in Fountain City, TN. This roof has shingles that are losing granules from the shingle surface, exposing the fibers of the shingles, which you can see from the glossy patterns on the roof. This causes roof leaks and nail pop, which will also cause roof leaks. This roof also has a pipe boot that is rising up, which could cause leaks. There are several nail pops and sliding shingles.