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I live on a busy street in San Francisco and recently installed an exterior exhaust vent line for my range hood (it used to be a worthless recirculating type). Doing so has increased the street noise coming into my place a good amount, and the noise is coming through the exhaust vent.

I would like to build a cover for the vent similar in design to the link at the bottom. While i know it won't eliminate the problem, i believe it will prevent enough noise from entering the vent to make a difference.

I am wondering if anyone here has done the same and/or what materials y'all would recommend using.

thx

http://www.enoisecontrol.com/wp-content/uploads/2015/01/Enclosure-Material.png

  • That looks like it would make a fantastic nesting space for some birds, bats, and spiders. – BMitch Apr 21 '16 at 14:00
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Add a range hood damper if you dont have one already, it should close off the tube when there is no airflow.

I would still build that enclosure though. The enclosure should be made of non porous, heat/flame resistant, and corrosion resistant materials since your exhaust would likely contain lots of water and oil vapors. Some suitable materials being galvanized steel, aluminum, stainless steel, and copper.

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I see this is an old question and probably has been fixed by now, but you could add sound baffles. We use them in offices to eliminate sound from heating units.

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