Well I’ve got a real building conundrum right now. I built an off-road style Teardrop and from someone else’s suggestion I decided to use a Raptor liner on the bare Baltic Birch 1/4” exterior without treating the wood first. So now here I am not even a year later with some irreversible issues. The wood from rain, heat and cold is starting to fail. The only way I can think to fix this is either to start all the way over and pull off the sheets of play wood which will most likely destroy the trailer or try and remove the Raptor liner which would most likely be a major chore and even the might still not work. Here are a few pics of what it looked like at first to what it looks like now.
When first done

Now after sun, cold and rain has messed up the wood


So the only suggestion that I’ve like so far is to clad over this with FRP. If I was to do this how do you seal the edges? Specifically the bottom edge etc? Also what about seams? How to you join and weather proof the seams? Also do you think that FRP would bend around my angles on the front and rear or would you need to just cut the panels like I did the wood and have to figure out some sort of trim for the angles?
Also what’s the best way to cut FRP?
Looking forward to seeing if this is actually a viable option for me. All the other options sound way to labor intensive to strip this all the way down to start over.
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