I’ve never seen this flooring insulation

I’ve never seen this flooring insulation. What type of batt insulation is this? Each batt is wrapped in grey plastic with micro holes in it. I didn’t think to look at the other side. I know, dumb.

Owens Corning made something similar called Miraflex. It was made to be itch-less and easy to handle. The holes are so that the plastic wrap does to became a vapor barrier.

I see what looks like a JM (Johns Manville) on the bottom of one. It may be something like this:

ComfortTherm Poly Faced Fiberglass Insulation Roll

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I didn’t pay it enough attention, then when I got home, I was wondering if it was a new type of installation installed upside down. I’d definitely rather ask than get that call later. Thanks. I will check into this.


James S. Saunders, CPI
President, Member
Certified Inspectors of North Carolina LLC.

james@certinspectnc.com
Direct: 910-578-4943

You’ve got to say, I think that if I keep working at this and want it badly enough I can have it. It’s called perseverance. – Lee Iacocca


Mark Mustola
mmustola
InterNACHI®️ CPI

    April 27

Owens Corning made something similar called Miraflex. It was made to be itch-less and easy to handle. The holes are so that the plastic wrap does to became a vapor barrier.

I assume you are in an area that requires vented crawl spaces.