Faced Batt Insulation In Attic

The same is true for an attic floor.
Faced batt insulation in attic. Kraft paper facing is by far the most common type of vapor barrier you can find pre attached to blanket insulation intended for installation in homes. That s how the barrier is made effective. This will lead to non uniform r values. Unfaced insulation when adding more insulation to an attic that already has insulation use unfaced insulation.
8 bags model k91 view the owens corning attic insulation. What is the right insulation for an attic. Here s what you need to know about the facing on attic insulation. Owens corning r 38 ecotouch pink cathedral ceiling kraft faced fiberglass insulation batt 23 3 4 in.
Lay the batts across the ceiling joists covering the existing insulation. Unfinished or uninsulated attics need a layer of protection against air migration. Kraft faced or paper faced insulation comes in batts and long rolls. The facing should aim down toward the living space.
While wearing dust mask and gloves carry r 38 batts of unfaced fiberglass insulation into the attic. Roll insulation is best for floors ceilings and roofs with a long joist or rafter bays and for tall walls. Faced insulation has flanges on the outside of the batt that need to be stapled to the wall studs and joists. Once installed and expanded to the uniform manufactured thickness batts offer a known r factor.
The batts are precut to fit into cavities on standard 8 foot high walls. Creating a moisture barrier. Always use unfaced batts both when laying product for the first time and to prevent moisture from becoming trapped between new and old layers of insulation. Place a new layer of unfaced batts perpendicular to the old layer to cover any gaps in the lower layer.
Guardian r 13 kraft faced fiberglass insulation batt 15 x 93 106 6 sq. The r factor of blown in fiberglass is usually 2 3 to 2 8 per inch of material. Faced insulation if the attic doesn t have any existing insulation use faced insulation with the paper facing toward. Faced insulation has a sheet of material attached to one side.
This material may be kraft paper foil plastic or vinyl. Blown in insulation thickness can vary in an attic space.