Flat insulation batts
This is a general (possibly dumb) question about the behavior of insulation bats lying flat in an overhead space or attic. I’ve seen how they can flatten out over time. Would it be worth the effort to cut them lengthwise so the pieces lay sideways, perhaps staying fluffy for much longer?
In my case, I’m adding insulation to a ceiling for strictly acoustic purposes. I’m using 2in OC703 as a kind of drop ceiling tile, then 6in thick bats above that (unfaced). I’ll cover the whole ceiling with fabric which makes any kind of future access problematic. So this idea occurred to me as a way to keep the batts fluffy longer. I would cut the 24in bats lengthwise into 4 sections and turn them 90deg. Thoughts on this approach?
I already have the batts so other types of insulation are not an option at this point.
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