Attic Floor Insulation Boards

Standard joist spacing for the installation of attic flooring materials is 16 inches on center oc meaning the distance from the center of one joist to the center of the next joist is 16 inches.

Attic floor insulation boards.

Create additional storage in otherwise unusable attic space. Foam insulation boards can be attached to concrete walls as well and in such a case care should be taken not to chip the cement. Boards lock together using a tongue and groove design. 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.

Osb attic decking has a convenient tongue and groove design for easy installation. Plan to pull up the flooring and layer new insulation on top of the old. Select pieces that will allow you to access most of the spaces in between the joists. Watch this easy diy guide on how to fit loft boards giving you a strong storage platform above even thick insulation in your loft or attic.

Place a 2 inch by 3 inch board directly on top of the joist nearest to the edge of the attic with its largest. Blow insulation between the ceiling joists figure 5. The superattic system utilizes proprietary silverglo rigid foam insulation panels to fully seal and insulate the attic directly beneath the roof rafters and directly inside the gable ends. Energy saver eliminates the need to remove attic flooring and lose valuable attic storage space in order to make major energy saving upgrades in the attic.

Walk to one end of the attic by carefully stepping only on the wooden ceiling joists. When installing foam insulation boards in the attic make sure you start from one corner and work your way around the room. Find out more in. If your attic has flooring atop the joists you may need to remove some of the flooring planks before you can blow insulation into the joist cavities.

As such adding a floor can cause the insulation to compress thus reducing the efficiency of the fiberglass insulation. Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation. Because the simplest and cheapest way to insulate an attic is to add material to the floor. Since an average attic needs 16 inches or more of insulation the insulation is always thicker than the ceiling joists or trusses.

Find your zone on the map and then use the chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces. Step 3 place caulking and furring strips.