I know it is the wrong time of the year for this but just thought of this question. I had to get a new roof put on and went metal. I bought the metal myself. The place that sells it sells other metal items also. If not mistaken they sell thicker metal maybe 1/2 thick. Was wondering if that is "fireproof/heat proof could i put it in my fireplace either in back or all 3 sides would it help heat better? The fireplace sucks and know most do. My parents had a fire place put in by Sears and it was VERY hot and heated great. It had metal on the sides also mine is cement on 3 sides. Thuink the metal would work if it is fireproof etc and not mess my house up or catch it on fire? thanks