Fit the insulation into the framing cavity starting at the top for walls or at one end for.
Installing kraft faced insulation attic.
Install batting between the roof rafters for finished attic spaces.
I ve always said adding insulation to your attic is some of the best money you can spend to make your house more energy efficient but whether to use faced or unfaced insulation is a great question.
If you re installing additional insulation in an attic that s already insulated use unfaced insulation that doesn t have a vapor barrier.
Paper faced insulation means that one side of the insulation material comes lined with paper.
When using insulation that has either paper or plastic facing.
If there is already insulation between the joists increase the r value by installing unfaced roll insulation right on top.
Any existing batt or roll insulation in the attic should have the facing against the attic drywall floor or no facing at all.
So if you re installing insulation in an attic that doesn t have any used faced insulation and put the paper side down toward the ceiling.
Batt or rolled insulation or blown loose fill insulation fiberglass or cellulose can be installed on top of old insulation.
How to install kraft faced insulation.
Now here s a situation where a homeowner what looks like many years ago added insulation they added a three inch layer but.
Run the unfaced strips perpendicular to the joists and butt each strip tightly together to form an airtight blanket of insulation.
The insulation should be snug in the cavity but not compressed.
Among the many insulation options available for the homeowner there is one that stands above the rest.
To this end you insulate your home.
You can use either faced or unfaced batting for this installation.
Cut the insulation roll or batt to fit the length of the framing cavity if necessary.
Insulation should be rolled out perpendicular to the joists and unfaced rolls should be used.
If your attic floor has no insulation install faced batts or faced rolls between each joist with the moisture barrier facing down against the drywall or plaster ceiling below.
This is usually kraft paper but sometimes other types of paper can be used.