On 4/23/21 10:45 AM, Stonecoldmd wrote:
Having similar problem with newer home. Floor above feels like Im walking on rice paper with cracks and pops and squeaks. Even on tile areas. Corresponds to heating duct below in unfinished basement ceiling. Dont know whether too much or too little
moisture. Have tried bracing subfloor with no success, sinking screws through subfloor into hardwood. Just getting worse. Would appreciate one and all suggestions

Let me guess.Â* You got 7/16" OSB sub-floor and 24" joist spacing?