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.
Putting new insulation in attic.
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.
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.
Position the new vent chute so the.
Batt loose fill or roll insulation can be installed on top of existing insulation.
The recommended level for most attics is to insulate to r 38 or about 10 to 14 inches depending on insulation type.
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.
Proper insulation should be between 10 and 16 inches deep.
Typically houses in warm weather states should have an r 38 insulation in the attic whereas houses in cold climates should have r 49.
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.
Adding new insulation over old insulation.
The vapor retarder on top of or between layers of insulation can trap moisture.
Pull the existing insulation away from the roof.
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.
Any new batt or roll insulation installed over existing insulation in the attic needs to be without a vapor retarder face.
Any existing batt or roll insulation in the attic should have the facing against the attic drywall floor or no facing at all.
Install or repair vent chutes.
Always cover the tops of the ceiling joists to make sure the insulation is deep enough to reach your target r value and.
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.
Being careful to walk only on the beams measure the depth of your insulation.
3 have a friend add material to the hopper.
Blown in insulation in the attic seal attic bypasses.