I opened my bunkhouse slide out yesterday after camper sitting in pole barn all winter and early spring. This piece came off the bottom of slide out under the roller inside the camper. It is cracked and damaged. If you look at outside picture where there is one not damaged, it acts as a piece of flashing to keep floor edge from getting wet and rotting. Does anyone know what this piece is called and how do I get a new one? Camper is a 2013 and out of warranty. Also, is this a dyi job? I am marginally handy at doing basic camper repairs.