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Kingston,Mi | On my pole building, they attached 2 inch foam board to the poles then covered it with ground contact rated 1/2 inch plywood. Both are 2 ft. deep, inside they deepened the footing to about 16 inches and laid it back about 24 inches at a 45 degree angle, covered it with foam board, before continuing with the rest of the foam on the flat. The skirt board is above the foam and plywood and laps the concrete by several inches, it is level with the finished floor. This was all installed and then they poured the concrete.
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Insulating building perimeter?
