Discussion:
"Edge Lift" symptoms and related foundation concerns.
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010010010101000
2006-09-24 02:18:52 UTC
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We've got a 5 year old house that is exhibiting symptoms of "edge lift".
An internal wall has raised off the floor about 1/8th inch and we've
got a horizontal crack in a nearby wall as well as a nearby door out of
alignment.

We've got a clay based soil structure and apparently this is pretty
common for the area.

The only thing I've been able to find to combat this is a $30/linear
foot treatment called ecss 3000. That comes to about $9000 for our
home. It has some good results and testing behind it. Recovery isn't
guaranteed, although they appear pretty confident about it stopping
further swelling of the base clay.

Could I combat this in any other way? I understand the chemistry here.
The problem is due to the increased water from landscape irrigation as
opposed to what the land was used to prior to building. Apparently the
foundation was not designed with enough give for this problem. The home
is not guttered. Would guttering help by channeling runnoff water to
another location?

Any info appreciated.

10100111001
RicodJour
2006-09-24 05:41:04 UTC
Permalink
Post by 010010010101000
We've got a 5 year old house that is exhibiting symptoms of "edge lift".
An internal wall has raised off the floor about 1/8th inch and we've
got a horizontal crack in a nearby wall as well as a nearby door out of
alignment.
We've got a clay based soil structure and apparently this is pretty
common for the area.
The only thing I've been able to find to combat this is a $30/linear
foot treatment called ecss 3000. That comes to about $9000 for our
home. It has some good results and testing behind it. Recovery isn't
guaranteed, although they appear pretty confident about it stopping
further swelling of the base clay.
Could I combat this in any other way? I understand the chemistry here.
The problem is due to the increased water from landscape irrigation as
opposed to what the land was used to prior to building. Apparently the
foundation was not designed with enough give for this problem. The home
is not guttered. Would guttering help by channeling runnoff water to
another location?
Yes, absolutely. The grade should slope away from the house and you
should have gutters with underground drainage (solid pipe, not
perforated pipe) connecting to a drywell(s) away from the house.

R

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