Installing Unfaced Insulation In Attic

Unfaced insulation adds an additional layer to attic insulation insulating the attic consists of setting insulation between the floor joists which are the ceiling joists of the room below.

Installing unfaced insulation in attic.

The facing on kraft faced insulation is made of kraft paper with an asphalt coating that makes the paper impermeable to water vapor. Installing insulation has almost the same steps for all. However you must complete an important step before installing any insulation. The paper creates a vapor barrier that helps keep the water vapor in the warm moist heated indoor air from migrating outward into the wall or other structure.

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. Measure the roll or batt of insulation to the area that you are going to install it in. For this reason faced insulation is typically installed on the. This is the reason you need not add a vapor barrier when you are using paper faced insulation.

Although insulation professionals will handle the installation for you here are some things to keep in mind about removing old insulation and installing new insulation over old insulation according to energy star. Air migrates from warmer spaces toward colder spaces and insulation is designed to help prevent or at least slow that migration. The existing layer should sit at the top of the joists. Begin rolling unfaced insulation in the opposite direction of the first layer.

Now here s a situation where a homeowner what looks like many years ago added insulation they added a three inch layer but it has facing on it and that could create a. Place a new layer of unfaced batts perpendicular to the old layer to cover any gaps in the lower layer. What is the right insulation for an attic. You can buy them unfaced or simply remove the paper or foil backing.

I ve always said adding insulation to your attic is some of the best money you can spend to make your house more energy efficient but whether to use faced or unfaced insulation is a great question. The purpose of insulation facing. Keep the rolls tight together. If it doesn t add a small piece of insulation over top.

Remember the second layer of insulation should be unfaced. Continue the installation toward the attic hatch. Faced insulation should not be placed on top of existing insulation in the attic. Remember to set the paper faced insulation upwards.

How to install unfaced fiberglass insulation in rafters. Insulate between rafters when constructing a raised or cathedral ceiling in a home or when making the attic a heated space. Owens corning r 19 ecotouch pink metal framed unfaced fiberglass insulation metal framing batt 16 in.