We have a Terry Dakota 829T Travel Trailer with a slide-out in the LR area that is leaking. Upon inspection, I discovered that there is a vinyl or rubber type material on the top of the outside framework of the slide that has a 6-7" L-shaped tear in it. I'm assuming it was torn because of some type of debris left on top before closing the slide. MY questions are:
1) What is this material, is it vinyl or some type of rubber roofing material?
2) Can this tear be repaired?
3) Should I replace the entire piece, rather than try and repair it?
Ironically, the trailer leaks when the slide is closed up and the only way to stop the leak is to open the slide. The rubber gaskets appear to be in good shape and they appear to make a good seal when the slide is closed up, yet it leaks?
Any feedback and/or positive suggestions would be greatly appreciated to help fix this problem.