Attic Floor Over Blown Insulation

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.

Attic floor over blown insulation.

Start with the attic floor. Insulation should be rolled out perpendicular to the joists and unfaced rolls should be used. Recruit a helper. Because the simplest and cheapest way to insulate an attic is to add material to the floor.

Drill 3 inch screws through the boards and into the joist where they cross over the joists. It will also make the attic a safer place in which to walk. Stop using your attic for storage. Batt or rolled insulation or blown loose fill insulation fiberglass or cellulose can be installed on top of old insulation.

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. Any existing batt or roll insulation in the attic should have the facing against the attic drywall floor or no facing at all. Place the 1 by 6 boards down over the floor joists in the attic so that they run at a perpendicular angle to the. Someone needs to load the bags of insulation into the blower which will remain on the floor below.

Blowing in insulation is a messy prospect and you ll need to wear a dust mask protective eyewear. Plan to pull up the flooring and layer new insulation on top of the old. Once the insulation is down you can turn your attic into valuable storage space by covering the floor with plywood. Never stand on joists.

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