Why is the foundation crumbling, and how do I fix it?
I was about to start my re-siding project here in Minnesota when I decided to take an in-depth look at a section of the garage that I’ve relatively ignored. I’ve always noticed that the edge of the garage floor was cracked off but never looked that closely at it. When I did today, well, I was pretty shocked at what I found.
The edge that cracked off did so because there was absolutely nothing underneath it. I don’t know if the dirt fill settled over the years, or if it was never there, but there’s at least a hole of ~12 inches under the garage floor where there’s nothing. So that’s what’s going on there.
Next we come to the cinder block foundation, which is literally disintegrating as I touch it. You can see how the studs from the garage door are barely supported at all. The cinder block underneath it feels really hollow when I tap on it and like it would break off with a good whack from a hammer.
Trying to figure out what to do here. Is this something where I need to fill the hole, then jack up the garage, and replace the block? If so, are there any good links on how to do this?
GBA Detail Library
A collection of one thousand construction details organized by climate and house part