Putting New Insulation In Attic

More insulation installation tricks and tips work from the perimeter of the attic toward the door or hatch so that you don t trample all over the insulation you just.

Putting new insulation in attic.

Always cover the tops of the ceiling joists to make sure the insulation is deep enough to reach your target r value and. Install or repair vent chutes. The recommended level for most attics is to insulate to r 38 or about 10 to 14 inches depending on insulation type. Pull the existing insulation away from the roof.

Any new batt or roll insulation installed over existing insulation in the attic needs to be without a vapor retarder face. This is because there are no chemical interactions that are caused by mixing these kinds of insulation meaning there are no health concerns to worry about. Before entering your attic make sure that the climb to the attic is safe and you wear a protective mask against the tiny fibers in some insulation. The vapor retarder on top of or between layers of insulation can trap moisture.

In most cases homeowners will add new insulation over old 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. We typically work through and seal the attic bypasses with the existing insulation in place olson says. Blown in insulation in the attic seal attic bypasses.

Add the right kind of insulation when adding additional insulation you do not have to use the same type of insulation that currently exists in your attic. Pull back the existing insulation and use expanding spray foam the fire blocking type to seal any. In a cooling climate a good blanket of attic insulation helps keep the house cooler and reduces the load on air conditioning equipment. Being careful to walk only on the beams measure the depth of your insulation.

Position the new vent chute so the. Proper insulation should be between 10 and 16 inches deep. Adding new insulation over old insulation. Typically houses in warm weather states should have an r 38 insulation in the attic whereas houses in cold climates should have r 49.

Batt loose fill or roll insulation can be installed on top of existing insulation. 0but olson says in many cases the old insulation does not need to be removed which keeps costs down. 3 have a friend add material to the hopper.