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Insulation "Kraft" Paper

Thom's Avatar
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02-03-04, 01:13 PM   #1  
Insulation "Kraft" Paper

I've been given to understand that the "Kraft" paper on insulation should face the living or, heated area.

My question is: How important is that??

I recently bought a house that has a crawl space under a heated addition. The area is approx 13' x 18', and 4.5' in height with a concrete floor and cinderblock walls — with 2 outside walls + 1 wall is the current cellar wall and the 4th wall is the attached, unheated garage wall.

For whatever reason, the insulation on the ceiling between the rafters was installed with the Kraft paper facing the unheated, cold crawl space .

Should I remove and reinstall this insulation? What would I gain by reversing it, or, what would I lose by leaving it the way it is?

Thanks in advance for your response(s).

“Always be sincere, even if you don’t mean it.” – Harry Truman, President

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Ed Imeduc's Avatar

Join Date: Aug 2002
Posts: 18,389

02-05-04, 01:56 PM   #2  
Take it out now

I bet right now if you go and put your hand up there in the insulation it will be wet in some places. We have takenso many out that where put in this way .It dont work.Go over to

You should take all of it out now. then a 4 or 6 mil poly on the ccement floor over lap it 2' tape all seams .Up the walls 2 ' also on the 2 out side walls and I put it on the garage wall also a 2" or 3" polystyrene on the walls up to the joist. Now take some of that insulation and put it in the joist space just up there on the sill plate all around the room.


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