Our bid to a 47 year old house in Fremont CA, was recently accepted and we are in escrow. Turns out that there is a cold joint in the foundation (pl see attached pic). The cold joint is visible along the entire exposed side of the foundation wall and so the Structural engineer believes it is all around the 4 sides. We already got it evaluated by Structural engineer who has recommended that we go for
- New anchor bolts at perimeter footings.
- Add plywood at cripple walls between the floor and footing
I have a few questions, for which I would really appreciate your advice:
a) How common and worrisome is this? If this indeed happened at the time of house construction then it has not affected the house. But then can we expect to see this problem in other identical homes in the neighbourhood?
b) If we go with the recommendation of the Engineer, will their be additional damage to the existing foundation, when the bolts are added?
c) The property is in Fremont CA, (close to Hayward Fault)- so we are wondering if structure has less capability to withstand tremors than other similar properties that do not have this issue.
d) The previous owner says he was not aware of this issue.
Thank you very much. Though we have the assessment, we are worried that this might lead to something big.