How To Roll Faced Insulation Attic

Any existing batt or roll insulation in the attic should have the facing against the attic drywall floor or no facing at all.

How to roll faced insulation attic. The fiberglass often used in batting causes skin and respiratory. Spread plastic sheeting over the crawlspace to prevent ground moisture from entering the area. 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. Install batting between the attic s floor joists.

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. Watch this video to find out more. Continue laying down the insulation making sure the batts are pressed tightly together at all edge and end joints.

Insulation should be rolled out perpendicular to the joists and unfaced rolls should be used. Place the insulation with the facing side down on a piece of scrap plywood. Gather a dust mask gloves and eye protection and wear them along with a long sleeved shirt when working with batting insulation. The number one prep step.

Set a t square or metal straightedge over the insulation and press it down firmly. Use our roll insulation calculator to estimate the amount of wall insulation crawlspace insulation or attic insulation you need for your project. Lay the batts across the ceiling joists covering the existing insulation. Gaps in the attic or between the lower floors and the attic will let heated or cooled air escape to the great unconditioned outdoors making any insulation you add essentially useless.

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. Cut the insulation roll or batt to fit the length of the framing cavity if necessary. Use a board to compact the insulation and provide a straight edge for cutting. Check the insulation manufacturer s instructions for the necessary thickness of plastic.

To cut thick batts or rolls of fiberglass insulation easily use an extendable utility knife that has snap off blades. When adding more insulation to an attic that already has insulation use unfaced insulation.