Installing Attic Insulation In Dormer Walls Faced Or Unfaced

You may be required to cover the kraft paper with other materials depending on your local codes.

Installing attic insulation in dormer walls faced or unfaced.

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. The unfaced insulation can be secured to the framing with staples. Insulating between rafters install batting between the roof rafters for finished attic spaces.

This is the reason you need not add a vapor barrier when you are using paper faced insulation. When using insulation that has. Remember to set the paper faced insulation upwards. If it is too big then trim it to size.

You can buy them unfaced or simply remove the paper or foil backing. If the attic doesn t have any existing insulation use faced insulation with the paper facing toward the heated living space. Run the unfaced strips perpendicular to the joists and butt each strip tightly together to form an airtight blanket of insulation. To make things safe cover your unfaced insulation with drywall to prevent the risk of a fire.

Insulation should be rolled out perpendicular to the joists and unfaced rolls should be used. The basic installation steps are the same for walls ceilings floors and roofs in wood frame houses. If you do use faced insulation you must take extra precautions to avoid having a fire. You should only use faced insulation as the first layer of insulation.

Cut the insulation roll or batt to fit the length of the framing cavity if necessary. Installing insulation has almost the same steps for all. Unfaced insulation in your garage. 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.

Set a t square or metal straightedge over the insulation and press it down firmly. Place a new layer of unfaced batts perpendicular to the old layer to cover any gaps in the lower layer. After securing the insulation wrap the entire passage with house wrap and seal the seams with house wrap tape. One method is to fill the gaps between the studs with faced batts and then wrap the entire passage with unfaced insulation.

Avoid covering an old layer of faced. Unfaced insulation can greatly reduce the risk of mold mildew or moisture damage in your house. 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. Any existing batt or roll insulation in the attic should have the facing against the attic drywall floor or no facing at all.

If there is already insulation between the joists increase the r value by installing unfaced roll insulation right on top. You can use either faced or unfaced batting for this installation. For example if you plan on using your garage for your welding projects you run the risk of having a welding fire.