We just had a structural report done on a house we are selling and the recommendation was to reinforce the subfloor. Here is my question. When we had the house remodeled we added cement board prior to putting tile down. Is that considered having the floor reinforced? The joist are 20 inches apart and in good condition. The inspector claims that some of the subfloor was "soft" and needed to be reinforced or replaced. To replace the subfloor we would have to tear up the new tile floor. He was not aware of the cement board or tile when he wrote the report...and he has not yet returned a call that I have placed to him. Any ideas out there. I really don't want to have to tear up the whole floor.