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Drilling Holes in Acoustic Frames

tjleonard61

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December 29, 2020 - 5:05 pm

I have seen people drill holes in the frames they build for acoustic foam . Typically, several 1 1/4″ holes are spaced on 4″ centers along the perimeter of 1″ x 3″ select pine board. Does anyone know if these air holes help airflow and improve the acoustic performance of the foam mounted in the frame?

Dennis Foley

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December 30, 2020 - 6:53 am

Nonsense. Its always about surface area coverage. Drilling a few holes will not increase that variable.

tjleonard61

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January 3, 2021 - 9:27 am

I still think adding the holes, although time consuming, labor intensive and may effect frame strength, would slightly increase the surface area of the exposed foam . Similar to the improvements seen when acoustic material is suspended as a cloud. I think it may help, but may cause more problems than its worth. I’ve seen a few guys do it, but after thinking about, it’s definitely not cost effective, so I doubt I’ll try it.