Attic Faced Insulation Installation

That s because the paper contains a layer of asphalt adhesive which prevents water vapor from passing through it.

Attic faced insulation installation. Cut the insulation roll or batt to fit the length of the framing cavity if necessary. While there is no actual problem to install it the other way around it will require drywall to cover the paper and prevent accidental fires. Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation. Regardless of whether fiberglass insulation is installed in a wall attic or crawlspace.

The basic installation steps are the same for walls ceilings floors and roofs in wood frame houses. Lay the batts across the ceiling joists covering the existing insulation. According to home advisor insulating your attic can cost between 1700 to 2100. While wearing dust mask and gloves carry r 38 batts of unfaced fiberglass insulation into the attic.

Place the insulation with the facing side down on a piece of scrap plywood. The facing contains a thin layer of asphalt which acts as a vapor barrier to block moisture. Use our roll insulation calculator to estimate how much roll or batt insulation you ll need. Install batting between the roof rafters for finished attic spaces.

Contractor or insulation installer s fee. Square footage of your attic. The paper facing should always face toward the inside of the home. If there is already insulation between the joists increase the r value by installing unfaced roll insulation right on top.

If you re insulating framed walls make sure the insulation is the correct thickness for your wall studs. 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. Find your zone on the map and then use the chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces. Run the unfaced strips perpendicular to the joists and butt each strip tightly together to form an airtight blanket of insulation.

It s important to use the right type of insulation to prevent moisture problems in your attic. Attic insulation is available with and without a paper facing. When using insulation that has either paper or plastic facing. Type and material of your insulation.

You can use either faced or unfaced batting for this installation. Measure between joists if insulating a floor or attic or studs if insulating unfinished walls to find the correct width for the insulation.