Fiberglass roof replacement

I helped a guy fix his fiberglass roof because it was disinegrating. Your looking at a very big job.

I will rebuild with new filon, lauan (luan) exterior and new lauan interior with padded marine vinyl. just curious if anyone has they same roof (stopping on top of rv vs rounding radius edge). or done this also.

2006 forest river Charleston 400ts.

I would replace the fiberglass with new. You can buy it in sheets to fit your rig. You can do it. Take off the items on the roof, remove the caulking that covers the sealing strips, and remove the strips. Get advice on the proper caulking (Dicor?) Remove and duplicate the damaged trusses etc. If you can do the job in a covered enclosure would be ideal. Pick up new seals for the air conditioner. Note whether they have used any adhesive etc. It's a big job, but just take it step by step and you'll succeed.

I "assume" that the fiberglass is OK and you need to rebuild the wooden trusses/supports/etc. as they are rotted out? why not just rebuild like original?
bumpy