Installing Unfaced Attic Insulation

Fastening insulation gently press the insulation between two studs with its moisture barrier facing out toward the room.

Installing unfaced attic insulation.

As a result of evaporation people breathing and plant respiration air carries some. Place unfaced insulation on top of existing material such as loose fill. Place a new layer of unfaced batts perpendicular to the old layer to cover any gaps in the lower layer. It s important not to lay faced insulation on top of faced insulation.

Find out how to install unfaced insulation correctly over blown in insulation. Fold out the paper flange along one side of the insulation. Cut the insulation roll or batt to fit the length of the framing cavity if necessary. In crawl spaces unfaced insulation is generally only used when adding to existing insulation.

Lay unfaced fiberglass roll or batt insulation between or across ceiling joists in attics with some existing insulation. Once you have successfully cut it down to size gently fit it into the cavity without using force. The basic installation steps are the same for walls ceilings floors and roofs in wood frame houses. You can buy them unfaced or simply remove the paper or foil backing.

Calculate how much you need. If you re using unfaced insulation in an area where a vapor barrier is required or recommended you may be able to add your own barrier using plastic sheeting. Use a staple gun and. Unfaced insulation is just insulation without an attached moisture barrier.

Flatten the tabs against the front edge of the stud on each side of the batt. Position the flange flat against the side face of the wall. Unfinished or uninsulated attics need a layer of protection against air migration. Unfold the mounting tab along each vertical edge of the batt.

Check pipes and vents. 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. Choose your insulation type.

Installing insulation has almost the same steps for all. Learn how one caller made an installation mistake and increased his chances of mold and condensation when he tried to add unfaced insulation over his blown in attic insulation. Place the insulation with the facing side down on a piece of scrap plywood. What is the right insulation for an attic.

Now here s a situation where a homeowner what looks like many years ago added insulation they added a three inch layer but.