Any existing batt or roll insulation in the attic should have the facing against the attic drywall floor or no facing at all.
How to add blow in attic insulation.
In most older homes and even in some newer ones blowing extra insulation into your attic can help save you a lot of money on energy bills some estimates go as high as 20 percent per year as well as make your home a more comfortable place to live.
Lay the batts perpendicular to the joists so they do not compress the insulation below.
Make sure you use an unfaced batt one without a paper or foil layer so the insulation does not trap moisture in the ceiling.
Fill your space with insulation.
Insulation should be rolled out perpendicular to the joists and unfaced rolls should be used.
Blow in insulation until the hopper is empty.
Move across the attic until you ve hit your desired height at every point.
To install blown in insulation in existing walls holes are drilled at the top of each stud space usually on the exterior and material is blown in via a long flexible hose.
Block all vents in the attic floor with baffles making sure to extend the baffles at least four inches above the.
Then pivot in place and do the same thing to the other side.
Then feed 1 2 a.
Continue to fill the attic.
Connect the hose to the insulation machine.
Wear a long sleeve shirt gloves eye protection and a dust mask.
Have a friend add material to the hopper.
Add loose fill insulation to existing loose fill 1.
The vapor retarder on top of or between layers of insulation can trap moisture.
Connect the hose to the blown in insulation machine.
For the center areas hold the hose level and blow in insulation evenly until you ve reached your level lines photo 6.
Raise the floor to create storage space.
Rent a loose fill insulation blower from a home improvement or hardware store.