Hi Kim, Regardless of whether fiberglass insulation is installed in a wall, attic, or crawlspace;
the paper facing should always face toward the inside of the home
. That’s because the paper contains a layer of asphalt adhesive which prevents water vapor from passing through it.
What happens if insulation is installed backwards?
The problem is that the paper acts as a vapor barrier. So if it is installed upside down, the paper moisture barrier can actually keep moisture in-between the paper and the sub-flooring. This
can lead to mold issues, as well as structural deterioration
.
What is the proper way to install faced insulation?
Which way should insulation face in a garage?
You can either use faced or unfaced insulation when insulating your garage.
If you use faced insulation, the paper side should face the inside of the garage
. Alternatively, when using unfaced insulation, it is recommended that you add a vapor barrier over the garage walls after installing the insulation.
Which way should insulation face in basement ceiling?
Any frame walls in the basement (as with a “walk-out” basement above ground level) should be insulated with fiberglass batts installed between the studs.
If the insulation has a facing or vapor retarder, it should face inward
(see “Exterior Wall Insulation”).
Can you install insulation horizontally?
The insulation should be cut long enough to hang down the wall and extend two feet into the crawl space.
It can also be installed horizontally in the same manner
. usually necessary.
Does insulation go in front or behind wiring?
Wiring should be installed before any insulation
. When building a home, everything needs to be done in the correct order. For instance, after the framing is complete and the exterior walls have been put up, you need to consider the inside of the wall cavities before you drywall the interior.
Does faced insulation need to be stapled?
INSTALLING FACED INSULATION WITHOUT USING STAPLES
The insulation must fit snugly at the sides and ends. Some CertainTeed products, such as SpeedyR, are prodcuced without stapling flanges specifically to be friction fit, and
do not need to be stapled
.
How do you install insulation between studs?
Does basement insulation have to be faced?
Faced insulation is what needs to be used in basements and crawl spaces to minimize heat loss and entry of moisture
. Basements and crawl spaces could be costing you unnecessary money. Soil, concrete, bricks, and cement conduct cold, and the cold air penetrate your house from the basement or crawl space.
Should basement ceiling insulation be faced or unfaced?
Also,
faced insulation must be covered with drywall because it’s flammable
. Unfaced insulation doesn’t have a vapor barrier and in the case of cellulose or fiberglass, unfaced rolls can add thickness before adding the final faced layer.
How do you hang insulation horizontally?
Can you put insulation on top of wires?
Yes, you absolutely can
. You can lay insulation around the junction boxes as well. Making sure that the insulation is of a fiberglass material will not only ensure a fireproof setup but also reduce airflow from the home through the attic.
Can you put insulation around wires?
It is perfectly safe for household insulation to touch wires provided the wires or cables are electrically insulated
. There also are techniques to make insulation fit better around wires. However, under no circumstances should thermal insulation make contact with live uninsulated wires and cables.
When should you use faced insulation?
Faced, or the type with paper, is
typically used in first-time applications, such as in walls, ceilings, floors, and in crawl spaces
. Any time you use a faced insulation, the paper needs to be facing toward the living space. So in an attic the paper faces downward and in a crawl space, it faces upward.
Can I put faced insulation on top of faced insulation?
Can you put faced insulation over faced insulation?
No, faced insulation should not be added over existing insulation
since the vapor retarder on top of or between layers of insulation can trap moisture.
Do you staple fiberglass insulation?
When installing fiberglass insulation batts with the built in Kraft paper,
you will want to staple the insulation in place so that it doesn’t fall
. The paper covers the insulation plus enough left over on each side to staple it onto wall studs.
Can you put plastic over faced insulation?
More than likely,
installing an additional layer of poly over kraft facing won’t cause any problems
— it’s no more risky than if the wall had only unfaced batts and poly — and the risk of using poly on the interior is relatively low in a cold climate like New York’s.
