freewheller
New member
I have done a lot to reduce noise. DC in closet with rock wool and vent outside. But haven't seen anything on noise difference between metal and PVC. I would like to use 7" metal to machines as I have read that the bigger duct is better for airflow. Also any concerned about static buildup.
Any experience or data on noise difference of metal vs PVC? What about wrapping metal with some thin insulation?
Any experience or data on noise difference of metal vs PVC? What about wrapping metal with some thin insulation?