Insulation should be rolled out perpendicular to the joists and unfaced rolls should be used.
Putting extra insulation in attic.
Any existing batt or roll insulation in the attic should have the facing against the attic drywall floor or no facing at all.
These insulation levels will keep heated air from migrating out in winter.
Pull the existing insulation away from the roof.
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.
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.
How to add extra insulation to an attic 1.
Batt or rolled insulation or blown loose fill insulation fiberglass or cellulose can be installed on top of old insulation.
Check the attic walls and floors adjacent to an unheated space like a garage or basement.
Always cover the tops of the ceiling joists to make sure the insulation is deep enough to reach your target r value and.
The higher the r value the better the thermal performance of the insulation.
Thickness must not be used as the sole factor in determining the r value of loose fill insulation particularly for attic insulation.
In a cooling climate a good blanket of attic insulation helps keep the house cooler and reduces the load on air conditioning equipment.
Position the new vent chute so the.
The structural elements are usually exposed in these areas which makes it.
Lay a walkway.
Typically houses in warm weather states should have an r 38 insulation in the attic whereas houses in cold climates should have r 49.
Inspecting and evaluating your insulation.
Blown in insulation in the attic seal attic bypasses.
3 have a friend add material to the hopper.
Follow the manufacturer s on package recommendation for r value based on your geographic.
Add the right kind of insulation.
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.
When adding additional insulation you do not have to use the same type of insulation that currently exists in your attic.