Rats have a nasty habit of urinating wherever they go. They drag their bodies through the urine leaving a sewer like odor on their pathways.
How To Get Rid of Rat Odors
Just spraying a household deodorizer on the area will only cover up this smell for a short time. Spraying the area with Odor Hunter is longer lasting.
Odor Hunter odor eliminator instantly bonds with odor-causing molecules preventing them from causing additional unpleasant odors from rodents. For roof rat odor in the attic consider releasing an Odor Destroyer Fogger.