We're looking for comments/ideas on the cause of the damp spot on the wall
and how to fix it.

We think that behind the cement/concrete wall is just earth.

Do we just dig out the damp section, patch and seal?

"coconino" wrote in message
...
10' X 10' back of the house extension built in the 1950's on a 1925 house.
What we call a "mud room" for coming in the back door and then either
going up to the kitchen or down to the basement.

We think the extension was built flat on the ground, except for the stairs
leading down to the original 1925 basement.

The exterior of the extension is old, cracked and falling off in chunks
insul-brick.

We've noticed a small (6" by 8") damp patch on the wall of the lower
stairs which lead from the mud room to the original basement.

We were thinking that the insul-brick needs to be replaced, but at the
same time we should have waterproofing done below ground level of the
extension. We suspect, given the age of the extension, this was never
done.

We think the damp spot on the wall is just the wet solid earth behind the
wall of the extension where it is below ground. We have no dampness at
all in the original basement area.