How To Add Extra Insulation In Attic

Turn off the power to the outlet.

How to add extra insulation in attic. Inspect the exterior walls by using an electrical outlet. 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. You should be able to see if there is insulation in the wall. Pull out a small amount of insulation if needed to help.

Then pivot in place and do the same thing to the other side. Add the right kind of insulation. Plan to pull up the flooring and layer new insulation on top of the old. Insulation should be rolled out perpendicular to the joists and unfaced rolls should be used.

Measure how much insulation you already have. See below for a shopping list and tools subscribe to this old house. Don t cover can lights unless they are rated for contact with insulation. Any existing batt or roll insulation in the attic should have the facing against the attic drywall floor or no facing at all.

Move across the attic until you ve hit your desired height at every point. The recommended level for most attics is to insulate to r 38 or about 10 to 14 inches depending on insulation type. Install fiberglass batts over existing batt insulation. Use cardboard or rigid foam baffles to keep soffit vents open.

Blow in insulation until the hopper is empty. Remove the outlet cover and shine a flashlight into the crack around the outlet box. Cost effective way to save energy with this old house general contractor tom silva. Carry a batt to the far end of the attic.

Because the simplest and cheapest way to insulate an attic is to add material to the floor. Check the depth using a tape measure. For the center areas hold the hose level and blow in insulation evenly until you ve reached your level lines photo 6. When adding additional insulation you do not have to use the same type of insulation that currently exists in your attic.

Fill all cracks between the living area and the attic with caulk or expanding foam. How do i add insulation to existing attic insulation. But if the floor is covered in plywood you can t stuff enough insulation beneath it to do the job sufficiently not even in warm climates. It s safer to build a small enclosure with hardware cloth or plywood to keep loose insulation away from lights and exhaust fans.