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Posted by Ben on December 1, 2007, 9:07 am
I just noticed this morning that there seemed to be some cold air
around the bottom of our fireplace hearth, which is brick and mortar.
A quick look shows that the mortar under the bottom brick has worn
away, in many places quite deeply. Should I fill with mortar, or
could I use some other sort of sealant (foam?) to fill this space?
Thanks!
-Ben
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