If your going to keep it first step is finding where it’s leaking and addressing that. Second step would be seeing the extent of the water damage. I bought a 08 skyline Malibu and found some water damage after I brought it home and I spend 8k on it, I fixed the leak and redid where the floor was soft. Fucked up how some people are.
If it helps, I chased some leaks for over a year. Flex Seal and all is well.
Hey good time to reno and make it even better… I mean your sort of stuck…so move on or sell it again…. just depends how committed you really are??? This is an opportunity… trick it out!!!!
That’s frustrating.. my first camper was a pop up and had no clue what I was getting into. Whole front end had so much water damage I had to get creative to fix it.. then wound up having to redo the roof too. Finally got rid of it even though I put more into it than it was ever worth. You live and you learn! We just bought our new (to us) hard sided trailer this year.
I’m still learning about sealing everything. First big storm water poured in through the shower skylight. Saving grace is all the water went in the shower, lol! It’s now well sealed.
Where is the water damage, floor? ceiling? Going to guess the seals around the roof / edges were probably not kept up with properly. First thing would be to prevent any more water getting in. Then you need to get everything to dry out well and see if it actually needs to be replaced. If it’s soft or breaking apart when dry it will. If it hardens and isn’t too swollen you might be ok.
get it sealed up and then get dehumidifiers in there ASAP. Had this happen on my rig – had to replace a slide out floor but once everything was sealed up and dried out we had not had any other problems.
I purchased a water damaged trailer 10 years ago and fixed the leak. I was able to replace the sub floor insulation framing and flooring the it was about $200 you could probably do the same today for $500 mine was 3/4 of a 26 ft trailer. Labor is what cost the most and I did the work.
If you’re handy and have some tools it’s not too hard to fix. Do you have pics of the damage?
The first step is to understand that you’ve bought a camper, new or used, NewMar or not, it’s going to leak and accumulate moisture and have issues, it’s not something to be stressed about. It’s a problem to be solved and it’s very doable. Repairmen will rake you over the coals. Doing it yourself, if you can, is your best option and everyone is capable of doing it.
The second step, and sometimes the most difficult, is determining where the leak originates. It will most likely be at a roof or floor seam, but may be at a window, other vertical seam, at the exterior floor seam, at a skylight/ac, slide gaskets, anywhere there’s gap could gib you trouble. If you have gutters, make sure they have spouts at the ends that direct water away from the trailer, that’s a very common problem, especially considering that your rot is in the corners, collecting roof moisture and directing it down the side of the trailer is a recipe for disaster. It’s less likely, but your plumbing could have a leak so don’t forget to check that. Water does not abide by the laws of nature so it really could be running from anywhere to anywhere else.
I would recommend a full reseal on exterior silicon, cut and reapply. Examine lap seal on the roof for large cracks and patch. Check your wallpaper and walls for signs of water damage. Unfortunately if the floors have damage, the walls probably do as well.
Once you’ve taken those steps, break out the rotten areas, clean cut with a circular saw and replace with 3/4in ply, you can brace at the bottom if necessary and don’t write off bondo for small repairs.
Good luck and don’t take it too hard, I had the same problem on my first one and kicked myself silly.
