Cloud Dancer wrote:
It's been about 8 years since I last saw this post. My answer is still the same:
Design AND produce a crowned roof that does not leak and which has mounting/attachment/gasket systems which make sense (for the air conditioners).
Hint: for starters,.... NO WOOD in roof, in sub-roof, in framing, AND in headliners. NO self-leveling goop. NO WATER intrusion, no rotting, no leaks. MORE BETTER, MORE FUN.
I think fiberglass shell would do all that nicely..
Even better and stronger maybe use Hemp plastic
https://youtu.be/srgE6Tzi3Lg