The previous owners of our home did a foundation repair to fix two large cracks about 10 years ago (it is covered by a lifetime warranty). The repair was very successful, but the epoxy plugs remain.
In an effort to improve the efficiency of the home, I want to apply rigid foam (xps – 2" on walls, 1" on floors). I am left scratching my head however on how to do this on the wall with the epoxy plugs. I've included a picture below of the plugs for reference.
The best option I can think of is to strap the was with 2×2's or 2×3's first. Thoughts?
Best Answer
I'm not familiar with epoxy repairs, but I'd guess that those holes were drilled to allow material injection and the plugs merely retained epoxy while it cured.
I'd grab them with a big ol' pliers and bend them back and forth a few times, breaking them off. A recipro-saw with a fine-toothed blade would also work.
Otherwise, if they're not too long, just press your foam onto them. A little persuasion and you can forget they were ever there. The lost insulation value is trivial.