I don't recall ever seeing a roof over a roof of a house. Seems redundant. It's why I have a fundamental issue with the necessity to purchase a cover for the grill cover. Reminds me of the absurdity of having turtles all the way down to support the earth.
My parents manufactured home was built in the 90's to whatever housing codes existed then. The trailer components were removed and the house bolted to a concrete slab.
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