Then use the numbers in the chart at right to estimate its r value.
Paper backed insulation in attic.
Kraft faced insulation should be installed in exterior walls exterior basement walls and attic ceilings by pressing the product into the wall cavity with the paper side facing outward towards the installer.
That s because the paper contains a layer of asphalt adhesive which prevents water vapor from passing through it.
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Watch this video to find out more.
Facing is a thin layer of paper or plastic attached to one side of batting insulation which is sold in a roll.
Grab a tape measure and a flashlight to see what kind of insulation you already have in the attic and how deep it is.
Regardless of whether fiberglass insulation is installed in a wall attic or crawlspace.
Gently push the insulation into the cavity but do not force it or compress it which reduces its insulating value.
Cut along the edge of the square with a utility knife cutting through the insulation material and the paper facing.
Unfaced insulation when adding more insulation to an attic that already has insulation use unfaced insulation.
Faced insulation if the attic doesn t have any existing insulation use faced insulation with the paper facing toward the heated living space.
Let the client figure out what they wish to do most end up doing nothing.
Fit the insulation into the framing cavity starting at the top for walls or at one end for ceilings floors roofs.
The paper facing should always face toward the inside of the home.
It is not my responsibility to tell them what to do or how to do it.
Can you double up paper back insulation to fill deeper space by using 2 by 6 board studes as framing.
Pull up and dispose of any material that s compressed water stained or moldy it s useless.
Whether you choose faced or unfaced insulation for the attic depends on the.
Whether you use it in a crawl space radiant floor attic or walls you ll find it easy to handle and install.