The House Detective: by Barry Stone, Certified Home Inspector
Dear Barry: Our house does not have a foundation problem, but the living room furniture used to shake when we would do our morning aerobic exercises. So we installed some steel posts under the joists to make the floor more rigid. Unfortunately, this is a problem now that we are selling the home. When the buyers’ home inspector saw the posts, he reported that they need concrete footings and permanent attachment to the framing. If we had never added these posts, there would be no problem. What should we do, add footings, take the posts out, or what? Belinda
Dear Belinda: Removing the posts after the home inspector made his recommendations will probably raise suspicions with the buyers. Adding concrete piers may or may not be necessary, but it may be the path of least resistance for selling your home. The only other approach is to get an opinion from a structural engineer.
The home inspector, when faced with an unusual installation of this kind, had reason for concern, but he should not have drawn conclusions that exceed his professional expertise. Unless he is a licensed structural engineer, he was exceeding the scope of his inspection by prescribing specific types of structural repairs. Instead, he should have recommended further evaluation by a licensed structural engineer. That would be the proper course of action for a home inspector.
If the living room floor used to flex when you did your aerobic exercises, the joists may have been over-spanned when the house was built. In that case, the posts that you added may have been necessary, and having them secured in a proper manner may now be an appropriate upgrade.