Just moved into a new house that we had built in Feb 05. Our master bedroom is over our living room/family room and the floor in our bedroom is very noisy. Our living room/family room is 16x30 and our bedroom is apprx 16x16. The noise is somewhat more than a squeak, it is almost like a cracking. The builder says that he screwed and glued the OSB (?) to the floor joists, then put down another layer of T&G douglas fir over this to try and stop the noise. In addition, he came back and re-screwed the sheetrock on the celing of the LR/FR to try and quiet the noise. This didn't do a whole lot. Any suggestions? The builder basically does not know where to go from here. I suggested putting an I-beam in for the span, but not sure if this would work.

Dornent Bernard