Pink fluffy insulation. How dense for ideal LF absorption?

ferrofluid
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Pink fluffy insulation. How dense for ideal LF absorption? Apr 26, 2024 17:55:05 GMT

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Post by ferrofluid on Apr 26, 2024 17:55:05 GMT

I have free pink batt and wish to pack some boxes to make LF absorbers till I get time to make or buy proper ones. Boxes are 39, 22, 13. 6.45 cubic feet. 12-13 lbs of pink would yield roughly 2lbs/per cubic foot.

I think I’ve read that pink or rockwool packed overly densely can become reflective. If so, what is that threshold? If denser is better up to that threshold, please let me know.

Conversely if packing rather lightly/loosely is advisable, please let me know.

Thank You,

Rick

Last Edit: Apr 26, 2024 20:52:45 GMT by Ethan Winer

Ethan Winer Administrator Posts: 791	Pink fluffy insulation. How dense for ideal LF absorption? Apr 26, 2024 20:54:04 GMT Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by Ethan Winer on Apr 26, 2024 20:54:04 GMT Once insulation is to 8-12 inches thick or more, 1.5 to 2 pcf is fine. So for your large boxes, just use fluffy and don't pack it too tightly.
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ferrofluid New Member Posts: 32	Pink fluffy insulation. How dense for ideal LF absorption? Apr 26, 2024 21:46:08 GMT via mobile Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by ferrofluid on Apr 26, 2024 21:46:08 GMT Thanks Ethan. The perfect answer.

Pink fluffy insulation. How dense for ideal LF absorption?

Post by ferrofluid on Apr 26, 2024 17:55:05 GMT

Post by Ethan Winer on Apr 26, 2024 20:54:04 GMT

Post by ferrofluid on Apr 26, 2024 21:46:08 GMT