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Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ.

Re: Polyester batting substitute

Quick update - the only fiberglass I can get which is the same price as the pre-formed pipe coverings is Aerolite but that is only 11kg/m3 - is that not dense enough? I see it has an NRC of around 0.8, whereas what I wanted to use originally (40kg/m3 CAVITYLITE) has an NRC of around 0.95. I have read your posts again about why the SQ&D traps are better than using pre-formed pipes, but at $100 for the cavitylite roll it seems cost prohibitive. If the Aerolite is good enough though then I will definitely use that.

Cheers,
X


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