Exterior Super-Panel Applications Super-Panel can also be used as a non-structural exterior backer board installed on exterior wall and gable end framing to provide intermediate support for exterior cladding such as metal or vinyl siding, stucco walls and thin brick cladding. The board must not be used for the attachment of siding material. Other versatile exterior applications include swimming pools, ponds, exterior tiles, decks, wharves, soffits, fences, etc.