This is my first time installing LVP. The subfloor in this doublewide, for the most part, is in good condition but I have questions about a few areas in the subfloor that I am unsure how to handle.
First pic is a section 4 feet by 4 inches. Looks like the board was put there to fill a gap for reasons unknown. There's no other "patch" jobs anywhere else. It's not level and it's tilted toward the wall. I am thinking that I will rip that board up to see why it was installed like that and fix it, possibly just sanding it down and putting it back? This is a gap in the marriage wall that runs half the length the trailer, it's over an inch deep. Can I fill it with floor patch? This is the marriage wall in the other half of the trailer. This metal strip is wavy and uneven, with sharp pieces where it folded back on itself. Any advice about what to do here? Can I just put the LVP over it? This section runs about 4" x 4". I'm thinking self leveler here. I appreciate any and all advice.