Measure the roll or batt of insulation to the area that you are going to install it in.
Installing attic insulation in dormer walls faced or unfaced.
For example if you plan on using your garage for your welding projects you run the risk of having a welding fire.
This is the reason you need not add a vapor barrier when you are using paper faced insulation.
You can use either faced or unfaced batting for this installation.
Unfaced insulation in your garage.
You should only use faced insulation as the first layer of insulation.
Any existing batt or roll insulation in the attic should have the facing against the attic drywall floor or no facing at all.
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.
Insulating between rafters install batting between the roof rafters for finished attic spaces.
Cut the insulation roll or batt to fit the length of the framing cavity if necessary.
Unfaced insulation can greatly reduce the risk of mold mildew or moisture damage in your house.
Installing insulation has almost the same steps for all.
If you do use faced insulation you must take extra precautions to avoid having a fire.
One method is to fill the gaps between the studs with faced batts and then wrap the entire passage with unfaced insulation.
If it is too big then trim it to size.
When using insulation that has.
Remember to set the paper faced insulation upwards.
Insulation should be rolled out perpendicular to the joists and unfaced rolls should be used.
Set a t square or metal straightedge over the insulation and press it down firmly.
You can buy them unfaced or simply remove the paper or foil backing.
Run the unfaced strips perpendicular to the joists and butt each strip tightly together to form an airtight blanket of insulation.
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.
If the attic doesn t have any existing insulation use faced insulation with the paper facing toward the heated living space.
The kraft paper itself is highly flammable.
You may be required to cover the kraft paper with other materials depending on your local codes.
Batt or rolled insulation or blown loose fill insulation fiberglass or cellulose can be installed on top of old insulation.
The basic installation steps are the same for walls ceilings floors and roofs in wood frame houses.
The unfaced insulation can be secured to the framing with staples.
To make things safe cover your unfaced insulation with drywall to prevent the risk of a fire.
Place the insulation with the facing side down on a piece of scrap plywood.
When adding more insulation to an attic that already has insulation use unfaced insulation.
Place a new layer of unfaced batts perpendicular to the old layer to cover any gaps in the lower layer.