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I tend to agree, and would just saw-cut the slab to create a control joint: "New footings can be placed on top of an existing concrete floor slab as long as the slab has firm support from underlying soil.

Can you put a new foundation under a home? Miraculously, it is whether it's a slab or raised foundation. You can remove the old foundation and construct a new one. You'll see this more often with raised foundations compared to slab-on-grade.

Concrete that's in good condition — free of any breaks, buckling or large cracks — can be a suitable foundation for a new layer. Be sure to repair any small cracks before pouring the new concrete.

0:03 2:49 How To Add a Footing to a House Foundation | This Old House YouTube Start of suggested clip End of suggested clip Okay and now i'm seeing rebar here laid in as well. So we want to make a good connection of courseMoreOkay and now i'm seeing rebar here laid in as well. So we want to make a good connection of course between the existing. And then what we pour.

In weaker soils, you have to augment the footing itself with steel and concrete. Excavate as before, but instead of using gravel, drill into the side of the footing and epoxy steel dowels into it, then place concrete to extend the footing out to the proper width.

I tend to agree, and would just saw-cut the slab to create a control joint: "New footings can be placed on top of an existing concrete floor slab as long as the slab has firm support from underlying soil.

Can you put a new foundation under a home? Miraculously, it is whether it's a slab or raised foundation. You can remove the old foundation and construct a new one. You'll see this more often with raised foundations compared to slab-on-grade.

Concrete that's in good condition — free of any breaks, buckling or large cracks — can be a suitable foundation for a new layer. Be sure to repair any small cracks before pouring the new concrete.

0:03 2:49 How To Add a Footing to a House Foundation | This Old House YouTube Start of suggested clip End of suggested clip Okay and now i'm seeing rebar here laid in as well. So we want to make a good connection of courseMoreOkay and now i'm seeing rebar here laid in as well. So we want to make a good connection of course between the existing. And then what we pour.

In weaker soils, you have to augment the footing itself with steel and concrete. Excavate as before, but instead of using gravel, drill into the side of the footing and epoxy steel dowels into it, then place concrete to extend the footing out to the proper width.