Five years ago, I had a 11 X !2 brick addition added to my kitchen–few months later it began gapping where addition meets original structure. Have filled cracks, plastered over and cracks reappaer according to seasonal changes. The addition acts as a cantilever, moving back and forth as weather changes from cold to hot. (I live in Pgh.) The outside also has some cracking at the back corner of structure. Is there a permanent solution that is asthetically appealing?
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