I am adding a new laundry room to the back of my house. The contractor
had a footer poured and block installed around the new room. Then the
area was filled with gravel.
The current house has a crawl space under it adjacent to this new
When they poured the concrete slab in this new room I noticed that it
was 9" higher than the slab in the current crawl space.
The new slab is up against the new block on 3 walls, but on the 4th
wall the gravel and concrete slab are up against the wood of the old
Is there a concern about this?
There doesn't seem to be anything between the gravel and concrete and