Originally Posted by Skoolydoo
Yes I was wondering this also.
I have been looking and reading on here and found one person who put I think felt then 1*3 strips with foam board in between then subfloor on top then used screws to go threw all wood and self tap into metal floor.
Haven't seen any reply of not to do that. But I have seen some say not to rivet sheet metal to the side of the bus to cover windows for the very reason of More holes for more moisture.
I like the idea of the 1*3 or 1*4 strips or what ever you use so you have an anchor point for walls or counters. I figure you probably have to seal each screw maybe under bus with a spray on beadliner or something.
Anyone els have any input on this issue. Im getting close to getting floor down so been researching this to see whats best.