Insulation Boards For Attic Floor

Working with home insulation boards insulation panels typically come in 4x8 foot sheets.

Insulation boards for attic floor.

The higher the r value the better the thermal performance of the insulation. Kingspan insulation r 3 common. Since foam board is more flammable than other insulation types you must cover it with inch gypsum board or other code approved material for fire safety. For new construction use rigid boards to insulate slabs and the outside of foundation walls.

On top of this the boards will provide additional insulation to bring the combined total up to the equivalent r value of 6 1. 0 56 in x 4 ft x 8 ft. They re much lighter and easier to work with than plywood sheets. R value is a measure of insulation s ability to resist heat traveling through it.

Smaller sizes are also available. Install them using panel adhesive or screws. Foam board insulation is used on attics and walls yet it can also be used to insulate your floors. 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.

Plan to pull up the flooring and layer new insulation on top of the old. How to calculate the required thickness of loft floor insulation. 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. Enjoy a clean look and increase the usable square footage of your attic by multiples of 8 sq.

Most people do not think about insulating their floors unless perhaps it s their attic floor. The table below shows what levels of insulation are cost effective for different climates and locations in the home. Because the simplest and cheapest way to insulate an attic is to add material to the floor. Insulation level are specified by r value.

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. Start with the attic floor. 0 56 in x 4 ft x 8 ft 1 unfaced polystyrene foam board insulation item 511270 model 100000050497. Osb attic decking has a convenient tongue and groove design for easy installation.

Stop using your attic for storage. 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. The superattic system from dr. If using a top layer of insulated loft floor boards aim for a base layer as close as possible to an r value of 2 25.