Repair Cracked Granite Hearth

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Repair cracked granite hearth. You will need no more than 2 teaspoons of granite powder to repair most cracks under 1 foot 0 30 m long. I have even incoprorated glitter and crushed or chipped precious gems mixed in resin to fill cracks to make it look like a vein of precious drusy stone thus making it a unique stone inclusion. Long or full thickness cracks and or areas with multiple cracks likely need repair. The crack will just reappear.

Connie phillips above has the best idea i have seen so far. Caulk is not a safe repair for hearth settlement. You can also remove a bit of granite dust from an area that is not visible such as the underside of a counter top. Repair may be a moderately difficult thing since you really need to eliminate the underlying problem.

In an easy to spot case of movement and separation between a fireplace hearth and the building floor take a look at the white caulk installed in an open crack between the hearth face and the floor in our photo left. Fissures are lines formed in the pattern of the stone by the borders of various crystalline groups within the stone. If you have an extra piece of the counter top material you can use this. Granite countertops are relatively easy to take care of and such preventive maintenance as cleaning up spills quickly and avoiding setting hot pots on them will keep the surface in good repair.

Simply slapping some mortar on the crack will not solve a thing even if you bother to find some heat resistant mortar. I work for a granite company never recommend marble as a hearth stone. Again i d suggest contacting a good mason who understands fireplaces and foundations.