So in an attic the paper faces downward and in a crawl space it faces upward.
Do i need faced or unfaced insulation in my attic.
If you don t have enough it may be an indication that your home is under insulated and may not be properly sealed.
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.
Attic insulation is available with and without a paper facing.
The facing should aim down toward the living space.
Here s what you need to know about the facing on attic insulation.
Find your zone on the map and then use the chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces.
Like blanket or batt insulation foam board comes in faced and unfaced varieties.
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.
An unfaced insulation product does not mean that this product is any less effective that its paper faced.
Whether you choose faced or unfaced insulation for the attic depends on the.
Kraft faced insulation includes a paper vapor retarder which helps prevent mold and mildew.
Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.
The first thing that you need to know is what type of insulation will work best for your home.
Unfaced insulation the type without paper is what you would use if you are adding insulation to your attic or to place between floors when living space is above and below.
Place a new layer of unfaced batts perpendicular to the old layer to cover any gaps in the lower layer.
You need up to 19 inches or r 49 for efficiency.
You can buy them unfaced or simply remove the paper or foil backing.
If a moisture barrier is required or recommended in your climate zone you will want to use the faced board again reflective facing is a good choice to insulate your walls.
It could just as well be a paper faced material or an unfaced material this kind of material lacks the paper that gives it steadiness.
Faced insulation has flanges on the outside of the batt that need to be stapled to the wall studs and joists.
The facing contains a thin layer of asphalt which acts as a vapor barrier to block moisture.
That s how the barrier is made effective.
It s important to use the right type of insulation to prevent moisture problems in your attic.
The same is true for an attic floor.
