This house is about 2 years old now. Two story house on a unfinished basement. There is a lot of noise from the walls and subfloor (creaks and pops) when walking on it. I carefully screwed down the subfloor to the LP wooden I-beams, but this makes no difference since the 3/4 OSB that makes up the subfloor is sitting across I-beams that are 24" OC apart. I can visibly see the OSB flexing when stepping in gap b/w the I-beams. The OSB is 4x8' sheet tounge and groove on the 8' side. The span of the unsupported beam is about 19' with the longest beam being
29'.24" seems a bit much to prevent minor floor noise. I am wondering what can be done to make the floor as quiet as possible. My solution up until now is to take up the OSB and install "struts" between the I- beams, but I am not sure how the strut should be constructed and how far apart they should be. Thanks for your suggestions!
Chris