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| Hello, Newbie to the forum here. I'm looking for some advice regarding insulation below a gas fireplace. We recently remove a large brick hearth. As you can see there is no insulation under the fireplace . The cold air comes in unabated and we would like fix that. The three areas under the fireplace that need attention are all made entirely of wood (2x on 3 sides and 3/4" plywood on the top). My understanding is of course wood has a much lower combustible temperature than either fiberglass or rock wool insulation. Is there any reason that I can't simply insulate the three cavities with product (non-paper faced) from the local home improvement store? The town home was built in 1985. I'm unable to find any brand info/model number/specs pertaining to the fireplace. Thank you for your thoughts and advice. |
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- Posted by SouthernCanuck (My Page) on Thu, Dec 13, 12 at 0:18
| Spray foam where the rim joist meets the floor as well as anywhere you feel a draught from the exterior wall. Hold a lit long candle lighter and you will find where the air is coming in. Then fill the void with Roxul rock wool insulation. Your good to go. I wouldn't be concerned with ignition of the lumber below, the unit looks to have a nice refractory lining, most units today so not. |
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