Under the overhangs….I know I know….need to be sealed up from the bottom now. The parts of the subfloor frame that overhang the trailer need to be sealed up to keep out rodents and to some extent moisture. They also need to be sealed up so I have a place to put the insulation.
I’m not overly concerned with these being pretty or super water proof since the underside of the trailer isn’t a place I’m worried about for water leakage. Most homes don’t have their floors sealed up to prevent water leaks since its not a typical entry point….except in flooding.
The basics are, cut some OSB/Plywood and put under the overhang then nail/screw it in to the bottom of the joists. Because for me I have a some brackets on mine I have to work around it. Its noted in the video. Then I’m going to seal up the edges with a bit of caulking just before I install the insulation and sheathing. Once again, this isn’t because I’m worried about water intrusion, but more to reduce the chances and keep the holes sealed up a bit better for insullative properties.
Why OSB? OSB is cheap and I’m on an extremely tight budget. Not to mention that while OSB can sometimes swell a bit on the sides if water gets into it, it would only really come into play if this was a floor which is more susceptible to swelling type issues. This isn’t a structural piece that can’t warp. Lastly, most OSB horror stories you hear or read about are from years ago when OSB was new and working through its issues. Nowadays its a rock solid building material with a budget cost.
Enjoy the video