How To Roll Faced Insulation Attic

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How to roll faced insulation attic.

When adding more insulation to an attic that already has insulation use unfaced insulation. Insulation should be rolled out perpendicular to the joists and unfaced rolls should be used. While wearing dust mask and gloves carry r 38 batts of unfaced fiberglass insulation into the attic. Spread plastic sheeting over the crawlspace to prevent ground moisture from entering the area.

The fiberglass often used in batting causes skin and respiratory. Gather a dust mask gloves and eye protection and wear them along with a long sleeved shirt when working with batting insulation. Check the insulation manufacturer s instructions for the necessary thickness of plastic. The number one prep step.

Use our roll insulation calculator to estimate the amount of wall insulation crawlspace insulation or attic insulation you need for your project. To cut thick batts or rolls of fiberglass insulation easily use an extendable utility knife that has snap off blades. Use a board to compact the insulation and provide a straight edge for cutting. 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.

Any existing batt or roll insulation in the attic should have the facing against the attic drywall floor or no facing at all. 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. Lay the batts across the ceiling joists covering the existing insulation. Place the insulation with the facing side down on a piece of scrap plywood.

Set a t square or metal straightedge over the insulation and press it down firmly. 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. Extend the blade all the way out to provide a long sharp edge that perfect for cutting through thick insulation.

If the attic doesn t have any existing insulation use faced insulation with the paper facing toward the heated living space. 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.