"standard" plywood under rubber floor?
I was playing with the Silver Snail this afternoon and realized that there is no wood under the rubber floor. I seem to recall that nearly everyone, in fact everyone except TigerCub, having plywood beneath the rubber floor. I'm wondering how common a metal to rubber floor really has been? Is it a regional thing? Different specs for different regions of the country? For reference, my bus came from Ohio. It was built by BlueBird East, versus West (Iowa). Thanks...I'm just morbidly curious.