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Save money buying Glasswool or go for Poly insulation?
Old 1 week ago
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Save money buying Glasswool or go for Poly insulation?

I'm in Australia and my local Bunnings has Knauf Earthwool insulation for a very affordable price that I think will suit my needs after seeing the airflow resistivity numbers. I plan to make some SuperChunk bass traps with a lower density low GFR model, and then make some acoustic panels with some higher density/higher GFR stuff.
Alternatively there is a local distributor of Bradford PolyMax who I can get in touch with, however I suspect it'll be a more expensive endeavour and I don't actually have the airflow resistivity numbers of the PolyMax products so i'm unsure which products I would need.

Has anyone worked with Knauf's glasswool products for DIY acoustic treatment and seen good results? This will be my first attempt at some DIY acoustic treatment.

Does anyone actually have the GFR and sound absorption data on PolyMax?
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