So been dealing with leak on slide for way to long. At bottom of slide there is a black moulding with caulk on top, and you guess they didn’t think to caulk bottom and fiberglass was absorbing water and wetting inside wood and wall. Hope this helps someone.
You are exactly right. I had a leak in the same place and delaminated the plywood floor in the first few months I had my unit. Mine actually is caused by a lack of give a shit during construction. My dealer, Youngbloods, out of Kentucky won't even call me back about. I have it sealed with a piece of 4 inch Flex Seal across the seem. The tape has worked fine for the past 5 months. I am going to seal the bottom edge of each of my slides with tape to avoid the issue in the future.
It was on side of slide where black moulding was not caulked on bottom. Repair guy caulked and raised floor slightly to help prevent also sealed other slide that was built like dining room slide. Not all slides built same