tpitkin
02-06-2004, 07:06 PM
We move into a 12 year old house about 1 year ago and have problems with a cinder block foundation which is under a new addition, perhaps the addition is 5 years old. There are long, 15 foot, horizontal cracks in joints at ground level. Along one wall, the upper three courses of block have shifted, actually protruding about 1/2 " over the lower courses. This year we have had little snow and a deep frost, which has caused some of the joints to expand and open. There are also cracks in vertical joints. In the ground level cracks, wind actually comes in. The area with the worst cracking is on the corner that is deepest into the hill, meaning it blocks the most water. The previous owner also had the down spout running into perforated drain tile at this same corner. The house sits on the side of a hill and the addition is to the rear. There is a lot of groundwater year round, and the addition blocks much of it. We put in an interior perimeter drain and sump pump which has nicely taken care of the dampness. I also installed drain tile at the base of the hill. My question is, is there any way to repair the foundation? I would prefer not to excavate, if at all possible. Can repairs be completed from the interior?