Louver sleeve fasteners strip out from fan vibration
Fan vibration needs structural fastening, not drywall screws into weak framing. Replace stripped fasteners with approved structural screws/anchors into real backing.
Do not use drywall screws as the structural support for a vibrating mechanical louver sleeve.
Check
Identify what the fasteners are actually biting into.
Check for stripped holes, rattling, or frame sag.
Confirm whether there is backing/blocking behind the wall.
Use approved structural fasteners for the substrate.
Recheck blade/linkage movement after tightening.
Steps
Identify what the fasteners are actually biting into.
Check for stripped holes, rattling, or frame sag.
Confirm whether there is backing/blocking behind the wall.
Use approved structural fasteners for the substrate.
Recheck blade/linkage movement after tightening.
Say this to your foreman
The louver sleeve at [location] is rattling and the screws stripped out of the framing. I checked the backing and it needs structural fastening. Do you want blocking added or approved structural screws/anchors used?