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DIYGST 04-17-2010 04:49 AM

flex insulated duct and noise?
 
Does insulated flex duct (R-6) 8" diameter attenuate noise? It's a noisy freeway outside and I can hear it from my bathroom fan sometimes but that is using just dryer hose type duct without insulation.

I will be adding a vent to the outside wall and I was wondering if I will hear the noise brought in by insulated ducting similar to the bathroom fan.

beenthere 04-17-2010 06:29 AM

It will attenuate some of the noise. How much varies with length of the duct. And how much noise is coming into it from the intake hood.


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