1. An easy way to redirect this heat into the room is with a piece of foil-faced foam insulation board. 2. Or, sometimes roofers will put insulation board over an old roof and apply the rubber roof to that. 3. You can make such a reflective shield by gluing heavy duty aluminum foil to the front of a sheet of foam insulation board or heavy corrugated cardboard. 4. The explosion occurred during repair work in the basement of a plant that makes a form of polystyrene for insulation boards. |
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