Retrofit foam adhesive masonry veneer ties

[shobroco]

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?

 

[dik]

The mortar comment was cautionary, not intended to be condescending... see too many 'screw-ups' with mortar and too many from improper repairs.

Is the inside of the wall plumb? or, does it exhibit a similar curvature? Interesting that a 24" wall at the corner of a building has a curvature.

Dik

 

[dik]

In Canada, eh... any chance of water penetration and freezing issues?

Dik

 

[shobroco]

The inside of the wall is reasonably plumb. I'm sure there have been frost issues over the years, & of course it only accelerates once water starts penetrating. Preventing that is part of the project.