Roof Rack Wind Noise Reduction

Results from experimental modal analysis and sound pressure spectrum measurement in a wind tunnel indicate the direction of design modification for reduction of the roof rack noise and vibration.

Roof rack wind noise reduction.

I usually keep the bike inside but still like the look of a biker car with the rack. If you can move the rack further back on the crossbars that should help but what would help the most is a fairing for the crossbars. It is quiet enough were i can open the sun roof racks and spoiler look cool on any car. If the surface the wind passes over has a consistent shape the disturbance becomes tonal and at certain frequencies very annoying.

The top section of the wind fairing attaches to the front crossbar while the bottom rests on top of the car. The wind noise we hear from some roof racks is known as aeolian no ise and is produced by wind when it passes over or through objects. Anything you put on the outside of your vehicle will result in a noticeable amount of noise while driving. Although wind fairings do not eliminate the noise 100 percent it does minimize it significantly to prevent you from being distracted while you are driving.

If you still notice roof rack wind noise after checking your rack and mount attachments and want to further pursue roof rack wind reduction consider installing a wind fairing. A wind fairing is a windshield that is placed on the front crossbar of a roof rack. A roof rack wind fairing is an easy to install plastic shield that deflects wind away from the roof rack therefore reducing wind noise. You may not recognize it but even crossbars from a ski rack or an empty roof basket create a barrier against the wind that will make some annoying sound or noise.

Wind fairings are usually universal but are available in different lengths to fit your vehicle.