insulating a space with a mini-split system

Old 08-10-21, 10:45 PM
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Question insulating a space with a mini-split system

Need to insulate the attic above a garage. There is a mini-split cassette installed in the ceiling.

Two questions for you guys:
  1. 1. Are there any notable differences in the brands of blown-in insulation that you guys are aware of? Owens Corning, Jet Stream, Certainteed, etc?
  2. 2. Do I need to cover the mini-split before I insulate the space or can I cover the mini-split with insulation?
I am looking to do this myself but due to respiratory issues, I may have to obtain a contractor for this job.

Any advice either way, whether I do this myself or hire it done?


Last edited by solto2; 08-10-21 at 10:48 PM. Reason: spelling error
Old 08-10-21, 11:52 PM
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Fiberglass is fiberglass, cellulose is cellulose, just depends what color you like!

I'm assuming your looking at blow in, by far the easiest method. Doing it your self the cellulose is not as bad to work with, dusty but all that fiberglass fibers is something I would avoid.

As far as the unit, we know nothing about what you have, check with the manufacturer!
Old 08-11-21, 01:54 AM
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I would keep blown-in insulation away from the cassette so that it doesn't get sucked in small holes.

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