Faced insulation should not be placed on top of existing insulation in the attic.
Adding a layer of insulation in the attic.
Use a zippered insulated tent to keep the enclosure draft free attic tent at 7 attic cover insulator 120.
Typically houses in warm weather states should have an r 38 insulation in the attic whereas houses in cold climates should have r 49.
Attic hatch or door.
You can do it yourself for about 500.
By adding insulation to your attic you ll not only reduce your monthly utility bills but also enjoy improved energy efficiency and greater comfort throughout the year.
In a cooling climate a good blanket of attic insulation helps keep the house cooler and reduces the load on air conditioning equipment.
Affix rigid foam insulation to the attic side of the hatch or door.
Add additional layers.
The vapor retarder on top of or between layers of insulation can trap moisture.
These insulation levels will keep heated air from migrating out in winter.
And if you put the first layer down and let s say you use like 10 inch insulation the first time and you want to put a second layer down the second layer would be unfaced and that would be laid perpendicular to the first layer.
Pull down stair or ladder.
Add weatherstripping around the perimeter and a sweep to the door of a walk up attic.
If you need to add insulation in your attic save big by blowing in cellulose insulation yourself.
Any new batt or roll insulation installed over existing insulation in the attic needs to be without a vapor retarder face.
Blowing attic insulation isn t hard but it s dusty sweaty work.
Blown in insulation overview.