Installing Attic Insulation In Dormer Walls Faced Or Unfaced

If the attic doesn t have any existing insulation use faced insulation with the paper facing toward the heated living space.

Installing attic insulation in dormer walls faced or unfaced.

When using insulation that has. Installing insulation has almost the same steps for all. Set a t square or metal straightedge over the insulation and press it down firmly. Measure the roll or batt of insulation to the area that you are going to install it in.

Place a new layer of unfaced batts perpendicular to the old layer to cover any gaps in the lower layer. For example if you plan on using your garage for your welding projects you run the risk of having a welding fire. Insulation should be rolled out perpendicular to the joists and unfaced rolls should be used. Place the insulation with the facing side down on a piece of scrap plywood.

One method is to fill the gaps between the studs with faced batts and then wrap the entire passage with unfaced insulation. Cut the insulation roll or batt to fit the length of the framing cavity if necessary. 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. Insulating between rafters install batting between the roof rafters for finished attic spaces.

You can use either faced or unfaced batting for this installation. Avoid covering an old layer of faced. The kraft paper itself is highly flammable. Run the unfaced strips perpendicular to the joists and butt each strip tightly together to form an airtight blanket of insulation.

Unfaced insulation in your garage. You may be required to cover the kraft paper with other materials depending on your local codes. The basic installation steps are the same for walls ceilings floors and roofs in wood frame houses. You should only use faced insulation as the first layer of insulation.

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. If there is already insulation between the joists increase the r value by installing unfaced roll insulation right on top. When adding more insulation to an attic that already has insulation use unfaced insulation.

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. Batt or rolled insulation or blown loose fill insulation fiberglass or cellulose can be installed on top of old insulation. Any existing batt or roll insulation in the attic should have the facing against the attic drywall floor or no facing at all. Remember to set the paper faced insulation upwards.

This is the reason you need not add a vapor barrier when you are using paper faced insulation. You can buy them unfaced or simply remove the paper or foil backing. After securing the insulation wrap the entire passage with house wrap and seal the seams with house wrap tape.