The thing I am finding is that there really isn't anything to come loose in mine. The basic structure is amazing. The problems are small but all are results of the holes and what gets put in them, things like vents, windows and doors. I used wooden dowels to fill the holes where I had used metal screws to hold things while glueing and therefore no screws to draw moisture or back out. My wife wanted a larger space and appliances for our base camp so she bought a new 25' camper trailer that after a year of just sitting I have already had to deal with issues caused by expansion and contraction in the siding. I hate to think what it would have been like towing down the road moving every two weeks or so to different boondocking sites! I see there is a company in Scottsdale AZ that builds houses with 8",12" and 16" foam with a resin stucco. They simply cut channels for wiring and plumbing in the foam with a hot wire tool. Now if someone could make that work on a trailer how great would that be. Sort of like a fiberglass trailer with no seams super insulated.