Does anyone have any experience with tropical roofs? I'm referring to a second roof skin mounted about an inch above the real roof with air circulation between them. I've never seen one on a trailer, but I remember seeing them on early Land Rovers. In fact, I think they may have been a factory option.
Specifically, how was yours attached. What was it made of (sheet metal, fiberglass, maybe even stretched fabric)? Did you have any problems with it lifting and trying to peel off? Did it whistle? Did it collect debris (leaves, bugs or whatever) between the layers? Any other issues ?