Plasterboard and noise insulation

seani · 2009-03-09T22:38:54+00:00

We've had a largish room dry-lined and skinned over the top of oldplaster on stone-built walls.The plasterboard is on wooden battens leaving a gap of around 0.5 to1.0 inch depending.It may be my imagination, but the noise from next door seems to beamplified and certainly knocking on the wall from this side is a lotnoisier. They're great neighbours who would just knock the volume downwith no problems (he's a Jimi Hendrix fan) but I'd like to dosomething about it.Is is feasible to inject something between the new plasterboard andold wall? Should that make a difference the noise (and thermal)insulation?

Mar 09, 2009 22 Replies

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meow2222 17 years ago

exactly. Tehnically its a transformer, turning small movement in the metal with high force into larger volume air movement with less force.

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meow2222 17 years ago

A standard 4" concrete blocks sitting on noggings do a few things:

- they reduce framework movement at audible frequencies

- they lower the framework resonant frequency

- they lower framework q

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meow2222 17 years ago

a blob of foam will couple PB to the wall behind. The idea is just to use a little bit, so you get a flexible coupling, which will then act as damping, reducing PB movement. I'm not sure its a great strategy tbh, but if you want to avoid a reskim its one of the few options.

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