I read an earlier thread in which Ron stated that he has used expanding foam adhesive to tie masonry veneer to its back-up when the original ties had failed. I have never heard of this before and had the same initial reaction as hokie66, but I am interested in learning more. I frequently deal with heritage masonry buildings that require remediation of the ties between inner & outer wythes & we usually use drilled-in helical anchors. Stone walls with failed inner cores are usually grouted, but the possibility of using foam in them offers the added benefit of insulation. I am looking at an 1830s building with this problem right now. Has anyone ever done this?
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