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MLV double layer with or without gap?
Posts: 1
January 17, 2020 - 4:01 pm


Hi, I’ve got some loud neighbors. I’m looking to help reduce the noise bleed coming through the walls. If I’m to deploy two layers of MLV, would it be better to stack them directly on top of each other, or would it be better to mount one layer of MLV, then have an air pocket, then MLV again?

From the (great) video series acoustic fields provides, I’m lead to believe that I want the greater mass, therefore the first option, right? I’m primarily looking to decrease the bass frequencies and will also deploy a double layer thick drywall to help reduce upper frequencies.

Thanks in advance for your suggestions!

Posts: 502
January 20, 2020 - 7:29 am

L, I do not know what “loud neighbors” means. You must measure the frequency and amplitude of the noise and then build the appropriate barrier.

Posts: 1
February 9, 2021 - 8:32 pm


What is the best way to accurately measure the frequency and amplitude of the noise? What kind of equipment do I need for that and where can I find it? Thank you very much for all the info you provide.

Posts: 502
February 10, 2021 - 5:43 am

Use the RTA pro app from the app store.

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