Any existing batt or roll insulation in the attic should have the facing against the attic drywall floor or no facing at all.
Attic floor over blown insulation.
It will also make the attic a safer place in which to walk.
Start with the attic floor.
Once the insulation is down you can turn your attic into valuable storage space by covering the floor with plywood.
Someone needs to load the bags of insulation into the blower which will remain on the floor below.
To keep the blown in insulation from falling through the attic hatch opening make a 2x12 dam around the hatch perimeter.
If you stand on joists in the.
Batt or rolled insulation or blown loose fill insulation fiberglass or cellulose can be installed on top of old insulation.
Drill 3 inch screws through the boards and into the joist where they cross over the joists.
Blowing in insulation is a messy prospect and you ll need to wear a dust mask protective eyewear.
Place the 1 by 6 boards down over the floor joists in the attic so that they run at a perpendicular angle to the.
Never stand on joists.
Then to really seal the attic access up tight says olson lay fiberglass batt insulation on the inside of the hatch or door and wrap it up tight like a christmas present photo 3.
How to install attic flooring over blown in insulation step 1.
The vapor retarder on top of or between layers of insulation can trap moisture.
Plan to pull up the flooring and layer new insulation on top of the old.
Recruit a helper.
Insulation should be rolled out perpendicular to the joists and unfaced rolls should be used.