Author Topic: Soundproofing Existing Iron Shed  (Read 3280 times)


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Soundproofing Existing Iron Shed
« on: May 16, 2011, 09:58:46 AM »

I am in the process of soundproofing a garage in the rear of my lot. The garage is made from corrugated iron and timber and is 8.6 x 3.3m. My plan was to fill the area that the timber housing creates (a 96mm protrusion) with either bricks, acoustic fibre (tontine) or a combination of a variety of materials to confuse and deconstruct the sound, as well as creating a solid structure so that its not just a thin layer of tin. On top of this I will then put a layer of dry wall, a layer of acoustic suppressing material (either a vinyl, foam or acoustiblok) and then another layer of dry wall. For the roof (roughly 40cm of area) i had planned to fill this with acoustic insulation and a layer of dry wall (maybe even a vinyl too if necessary).

This plan has been formulated based on a few hours of internet research so any advice or insights into how I should or shouldn't be doing anything or different methods or material recommendations would be greatly appreciated.


Randy S

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Re: Soundproofing Existing Iron Shed
« Reply #1 on: May 16, 2011, 06:10:02 PM »
I would glue Mass to the tin shed ie cement board or drywall to build mass. Then I would build a new frame inside the shed and add soundproofing materials to that frame work...Decouple from the current structure will be the greatest value you can apply.

Principles for sound control.

1) decouple from the structure or vibrating surfaces.
2) Add barrier to control and contain the cavity.
3) add absorption in the cavity for stand waves.
4) dampen the final surface to reduce reverberation time.

Add all four principles to the project and gain the highest reduction value.