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I just installed a new fireplace insert. The front of the fireplace is black sheetmetal. The specs say that I can cover the metal with a noncombustible material (wonderboard). How do I attach the wonderboard to the metal, screws with some form of mastic or thinset? Would appreciate some advice.
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I just installed a new fireplace insert. The front of the fireplace is black sheetmetal. The specs say that I can cover the metal with a noncombustible material (wonderboard). How do I attach the wonderboard to the metal, screws with some form of mastic or thinset? Would appreciate some advice.