I was able to repair lot of delamination on my Fleetwood, but it is not easy job and takes lot of time.
My work was either pulling part of the panel away, or completely remove it for frame repair and then I used the best "liquid nails" I could find at Home Depot.
The hardest part was applying pressure to the panel.
On sides I park between the house and fence wall, so after putting wide plank against the siding, I put lot of sticks between the plank and house wall.
The repair done this way will leave uneven marks, so it is not going to be perfect.
I've got lot of inspiration on Lance forum, where you will find couple of topics with hundreds of pictures how professional RV shop rebuilds the camper.
