I have a 3 season porch on a concrete slab. We want to put in a gas fireplace and would like to make it flush with inside wall, so would need a bump-out. Problem is I don't want to put in a foundation for the bump-out since the floor is about 8' from the ground.
So the question is how is a bump out supported? My fallback is to call a professional to consult on the design, but the bump-out will be only 1-2' deep (haven't decided yet) and it would have clapboard on the exterior (i.e., nothing heavy). Any ideas?