How To Roll Faced Insulation Attic

Check the insulation manufacturer s instructions for the necessary thickness of plastic.

How to roll faced insulation attic.

In either case get an extra bag or roll you really don t want to run out when you re almost done putting it in. Place the insulation with the facing side down on a piece of scrap plywood. If the attic doesn t have any existing insulation use faced insulation with the paper facing toward the heated living space. The fiberglass often used in batting causes skin and respiratory.

The number one prep step. When adding more insulation to an attic that already has insulation use unfaced insulation. Continue laying down the insulation making sure the batts are pressed tightly together at all edge and end joints. Use our roll insulation calculator to estimate the amount of wall insulation crawlspace insulation or attic insulation you need for your project.

Use a board to compact the insulation and provide a straight edge for cutting. Any existing batt or roll insulation in the attic should have the facing against the attic drywall floor or no facing at all. Set a t square or metal straightedge over the insulation and press it down firmly. While wearing dust mask and gloves carry r 38 batts of unfaced fiberglass insulation into the attic.

Extend the blade all the way out to provide a long sharp edge that perfect for cutting through thick insulation. Install batting between the attic s floor joists. Overlap the seams by about 12 inches and run the plastic up the walls at least 6 inches. Cut the insulation roll or batt to fit the length of the framing cavity if necessary.

To cut thick batts or rolls of fiberglass insulation easily use an extendable utility knife that has snap off blades. Lay the batts across the ceiling joists covering the existing insulation. Insulation should be rolled out perpendicular to the joists and unfaced rolls should be used. The batting material must be faced and at least as thick as the joists are wide so the batting is nearly flush with the top of the joists.

Spread plastic sheeting over the crawlspace to prevent ground moisture from entering the area. Gather a dust mask gloves and eye protection and wear them along with a long sleeved shirt when working with batting insulation.