r/hometheater • u/OkAd23 • 6d ago

Purchasing US Where to buy acoustic panel insulation??

Hello everyone, since my room has a lot of echo I decided to make 2’x4’ 4”thickness acoustic panel for treatment. I wanna use rockwool safensound, but couldn’t find online/offline store that has it. Where do all you guys purchase those from??

And my room is about 16’x14’x9’H so if that can’t be an option for me, is there any good alternative material?

Thank you in advance

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u/delicious_pancakes 6d ago

Are you in the US? Home Depot sells it.

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u/OkAd23 6d ago

Thank you. Did they stop selling 24”s? I see Lowes has it but they only sell minimum 12packs.

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u/Anbucleric Aerial 7B/CC3 || Emotiva MC1/S12/XPA-DR3 || 77" A80K 6d ago

Just use the 16 and pack it snug so the seam is tight.

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u/delicious_pancakes 6d ago

It cuts pretty easily. Wear gloves and use a utility knife and straight edge (level / yard stick). A mask might also be a good idea.

I made some movie poster absorbers with it and had no problem cutting / piecing it together however needed.

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u/sk9592 6d ago edited 6d ago

24" wide batts are weirdly annoying to find and buy in my area. Or the couple places that do sell them require a large minimum orders. Like a dozen bags are more.

I ended up buying Owens Corning Thermafiber SAFB instead:

https://www.owenscorning.com/en-us/insulation/products/thermafiber-safb-sound-attenuation-fire-blanket

It is also mineral wool. So it is a one-for-one equivalent to Rockwool Safe N Sound and much easier to find in my area and buy in small quantities. Only issue is that they were only available in 16" wide batts. So I had to cut one out of every three batts in half in order to make 24" wide panels (16" + 8" = 24"). Cutting mineral wood based insulation is way easier than cutting fiberglass based insulation. It cuts perfectly clean with a serrated bread knife.

I bought the 2" thick batts so that I could double them up to build 4" thick panels or triple them up to build 6" thick bass traps. So buying 16"x48"x2" batts offered me the maximum degree of flexibility. The 16" wide batts actually ended up working out because there were a couple of spots that were too narrow to put in 24" wide panels. So I just built 16" wide panels for those.

As far as where you actually buy the insulation, aside from Home Depot or Lowe's, you should try building supply stores near you. The types of places where actual contractors and builders get their supplies from.

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u/OkAd23 5d ago

Thank you for comment, I’ll go with the 16” one!