This may seem a very silly question, but... why do most folks raise the roof? I mean, beyond the obvious lack of headroom for people with busses that once carried kids, is there another reason? Does it really make that much difference in the livability?
For those that have raised the roof, how come you did everything the same height? If you're going through all the trouble of modifying the top, why not modify it to your advantage and make it a little more aerodynamic? After all, if you have sleeping quarters in the rear, then you won't need as much headroom to just lay down. I would think that by raising the front by a foot, but leaving the rear the same height, the difference is bound to help mpg just a little. Especially if you "roll" the front instead of leaving it flat to slam into the wind (I'm thinking of the big 18 wheeler trucks that use a similar wind diverter on their cabs for proven mpg improvement).
Has anyone tried this approach before? Did you notice a change in your mpg for better or worse?
I had images to illustrate what I'm trying to ask, but can't figure out how to make them show up.
I'll figure it out when I'm not quite so tired...