Trench wall foundation insulation
We are currently putting an addition on our home. The concrete contractor messed up and simply used a trench foundation for part of the foundation wall, he has been thrown off the job. We found out the village code requires 2 inches of rigid insualtion 24 inches down from the top of the foundation wall.
Being that part of the foundation is trenched, no forms, it is rugged and ragged and now has to be made smoother in order to apply the insulation,,,, Any suggestions on how to best chip away at the concrete to smooth it or other ideas to insulate?
We are in the Chicago area, zone 5.
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