On 2/1/2005 12:59 AM US(ET), steeda took fingers to keys, and typed the
following:

Hello,

I just bought a house in Santee, CA, known for expansive soils. After
pulling up some carpet, I found 2 hariline 1/16" cracks running across one
of the rooms. ( an addon, which was to code ). The house is 30 years old,
the addon is 8 years old. I haven't pulled carpet from the original
structure yet. The largest width mesaured at any point in the cracks is
1/16". The crack "splits apart' and the sides are totally level with one
over, not an up/down situation.

Is this a concern?


All concrete slabs crack under the right conditions. Both my 20 year old
2 car garage and basement have cracks in the concrete. Not 1/16" wide
though, maybe 1/64". Just enough to see.
Even when sidewalks and patios are built outside, the contractors put
grooves in the concrete to control cracks.

--
Bill