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Old 10-14-2015, 06:28 AM
Ed of all trade Ed of all trade is offline
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Join Date: Aug 2015
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I would think that if the ground brick was not very smooth that the rough surface would cause cracks in the brick when it heats up. Simular to stress risers. Ed

Last edited by Ed of all trade; 10-14-2015 at 06:30 AM.
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