Attic Floor Over Blown Insulation

How to install attic flooring over blown in insulation step 1.

Attic floor over blown insulation.

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. Insulation should be rolled out perpendicular to the joists and unfaced rolls should be used. But if the floor is covered in plywood you can t stuff enough insulation beneath it to do the job sufficiently not even in warm climates.

Once the insulation is down you can turn your attic into valuable storage space by covering the floor with plywood. Recruit a helper. If you stand on joists in the. It will also make the attic a safer place in which to walk.

Batt or rolled insulation or blown loose fill insulation fiberglass or cellulose can be installed on top of old insulation. Because the simplest and cheapest way to insulate an attic is to add material to the floor. Stop using your attic for storage. The vapor retarder on top of or between layers of insulation can trap moisture.

Blowing in insulation is a messy prospect and you ll need to wear a dust mask protective eyewear. 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. Plan to pull up the flooring and layer new insulation on top of the old. Place the 1 by 6 boards down over the floor joists in the attic so that they run at a perpendicular angle to the.

Any existing batt or roll insulation in the attic should have the facing against the attic drywall floor or no facing at all.