Who all makes aluminum sided aluminum framed TT’s?

Crazy story. One of my old camping friends told me that Forest River came and picked up her trailer and replaced an entire side of the trailer due to a defect that caused delam. Then it happened again a short while out of warranty, and they came and got it and replaced the other side and did some other work and upgrades for her at no charge. Gotta say, that's impressive service, not sure what the heck she said to them.