Delamination of composite materials is a consequence of poor construction, poor materials, faulty construction or materials, or material failure -- the list is long! The RV industry is moving towards composite structures for ease of build and many other reasons. This does not mean that this approach is a mistake.
Certain manufacturers are prone to have problems with delamination and those tend to be budget brands, as shown by the TC shown in the pic below. This unit was actually on the sales lot in April 2016 and was brand new.
I recently owned a fiberglass boat that was a premium brand. It developed spider cracks in the floor in the sixth year of ownership. The warranty had expired after five years. The manufacturer was responsive to my documentation and performed a complete factory repair. It was an extensive replacement of the entire floor of the fishing deck and took two months as the boat was incorporated into the factory floor flow. This kind of customer service may be rare but DOES exist in companies with good business ethics. I have found these companies tend to be family owned and are usually not in the business of building things on the slimmest of margins.
From what I have seen of the RV industry it has a long way to go to get us to the perfect camper, but it does appear that some brands are giving it at least lip service. As the economy swings only those companies that have good reputations and customer loyalty will persevere. Those that ignore their consumer base do so at their own peril.
This thread has a lot of discussion of NL and it is a lot to digest. I do know that NL is a brand that I would definitely consider when I decide to replace my current unit. While a company cannot possibly make every customer happy every time, there is at least considerable pressure to do so in this day of enlightened consumers and the web.
