I have a crack in the back section of the firebrick. Is this a problem? Do I need to replace this section?
Posted by Elite Deals - Chris M. on 24 October 2013 02:46 PM

Our Answer:

Hairline cracks are normal and should not cause concern. However, cracks larger than 1/8" necessitate a replacement refractory panel or brick. If you have a small crack, you may use fireplace mortar or the Defy Masonry Crack and Joint Filler.

From Section Page: Fireplace Mantels

ID: fireplace-mantels

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