Cleaning reveals one path for water ingress.
There are actually two water damaged areas
Detail of second water damaged area
Detail of larger water damaged area
Water on the floor after a hard rain
water on the floor after a hard rain
water on the floor after a hard rain
Water in the ceiling after a hard rain
Water marks down the inside of the drywall.
Water damage to masonite
Mostly dry at the top - some water marks in ceiling
Pulled out the single stud - water and insect damage all along the back side