Putting New Insulation In Attic

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.

Putting new insulation in attic.

3 have a friend add material to the hopper. Blown in insulation in the attic seal attic bypasses. Install or repair vent chutes. 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.

In most cases homeowners will add new insulation over old insulation. In a cooling climate a good blanket of attic insulation helps keep the house cooler and reduces the load on air conditioning equipment. 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. Any new batt or roll insulation installed over existing insulation in the attic needs to be without a vapor retarder face.

Being careful to walk only on the beams measure the depth of your insulation. Position the new vent chute so the. Batt loose fill or roll insulation can be installed on top of existing insulation. 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.

0but olson says in many cases the old insulation does not need to be removed which keeps costs down. We typically work through and seal the attic bypasses with the existing insulation in place olson says. Typically houses in warm weather states should have an r 38 insulation in the attic whereas houses in cold climates should have r 49. Adding new insulation over old insulation.

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. Pull back the existing insulation and use expanding spray foam the fire blocking type to seal any. The vapor retarder on top of or between layers of insulation can trap moisture.

A typical insulation project can range from 1 500 to 5 000 depending on the size of the project. Any existing batt or roll insulation in the attic should have the facing against the attic drywall floor or no facing at all. Always cover the tops of the ceiling joists to make sure the insulation is deep enough to reach your target r value and.