Another one here for Evergreen EverLite especially 2012 and older.."no wood to rot construction philosophy" low VOCs off gassing materials. Or any manufacture using the composite materials such as compositek or azdel without using wood in the framing or inner/outer shells. I think after 2012 Evergreen started using wood substrate in their ceiling/roof along with Compositek /TPO. Definite more expensive trailer to make the Everlite line. I think once you get beyond the construction the appliances manufactures such as Atwood and Dometic and axles Dexter are found across the RV industry in many RV manufactures. I guess then it comes down to how well the manufac/dealer stand behind their product. Evergreen dealers around these parts are few and far between. There are a couple Evergreen owners forums out there on the net as well as on Yahoo to research.
http://www.goevergreenrv.com/
