How To Add Roll Insulation To Attic

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.

How to add roll insulation to attic. Overlap the seams by about 12 inches and run the plastic up the walls at least 6 inches. Start at the lowest part of the attic where the roof meets the outer wall and unroll the insulation perpendicular to the joists back toward the. This old house general contractor tom silva and host kevin o connor demonstrate the proper way to insulate an attic. Pull down stair or ladder.

Use a zippered insulated tent to keep the enclosure draft free attic tent at 7 attic cover insulator 120. Attic hatch or door. Batt or rolled insulation or blown loose fill insulation fiberglass or cellulose can be installed on top of old insulation. Check the insulation manufacturer s instructions for the necessary thickness of plastic.

Cost effective way to save energy with this old house general contractor tom silva. Add weatherstripping around the perimeter and a sweep to the door of a walk up attic. See below for a shopping list and tools subscribe to this old house. Carry a batt to the far end of the attic.

Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation. Insulation should be rolled out perpendicular to the joists and unfaced rolls should be used. Laying rolls of blanket insulation. Block all vents in the attic floor with baffles making sure to extend the baffles at least four inches above the planned thickness of your insulation.

See below for a shopping list and tools. To add insulation to the attic floor you will require enough blanket material to do the job a heavy duty shop vacuum plastic sheeting for covering the blanket material that will insulate the attic opening a heavy duty staple gun and utility scissors with long blades. Affix rigid foam insulation to the attic side of the hatch or door. Spread plastic sheeting over the crawlspace floor to block ground moisture from entering the area.

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