Paper Faced Insulation In Attic

That s because the paper contains a layer of asphalt adhesive which prevents water vapor from passing through it.

Paper faced insulation in attic. For diy attic insulation you ve got two choices. The purpose and way to apply is basically the same. If moisture from either direction is allowed to build up within stud or cavity walls the heat conducting moisture will cause the insulation to lose its r value and mold and rot will set in over time. Without stapling moisture still has a path into the room.

The batts are precut to fit into cavities on standard 8 foot high walls. This is usually kraft paper but sometimes other types of paper can be used. However stapling insulation in this manner creates and improper seating of the drywall during installation. Kraft faced insulation includes a paper vapor retarder which helps prevent mold and mildew.

Once you ve decided which type is best for you examine the material options and prices to home in on the right product. Facing is a thin layer of paper or plastic attached to one side of batting insulation which is sold in a roll. House wraps and kraft faced insulation are examples of vapor barriers that help control the amount of moisture that passes through the insulation. 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.

Paper faced insulation means that one side of the insulation material comes lined with paper. Kraft faced or paper faced insulation comes in batts and long rolls. Regardless of whether fiberglass insulation is installed in a wall attic or crawlspace. If the attic doesn t have any existing insulation use faced insulation with the paper facing toward the heated living space.

It s also important that there be no air pockets in the insulation as this is where the cold spots spring up in rooms. When adding more insulation to an attic that already has insulation use unfaced insulation. Roll insulation is best for floors ceilings and roofs with a long joist or rafter bays and for tall walls. The two staple tabs of insulation paper laid on top of each other to the nailing surface of the stud would seem to be an imperceptible discrepancy perhaps a 1 16 or less.

The paper facing should always face toward the inside of the home. That s how the barrier is made effective. Whether you choose faced or unfaced insulation for the attic depends on the. The insulation should be snug in the cavity but not compressed.

All kraft faced insulation is easy to cut with a sharp utility knife or insulation knife.