Insulation Boards For Attic Floor

Enjoy a clean look and increase the usable square footage of your attic by multiples of 8 sq.

Insulation boards for attic floor.

Kingspan insulation r 3 common. Working with home insulation boards insulation panels typically come in 4x8 foot sheets. 0 56 in x 4 ft x 8 ft 1 unfaced polystyrene foam board insulation item 511270 model 100000050497. 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. 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. 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. 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.

On top of this the boards will provide additional insulation to bring the combined total up to the equivalent r value of 6 1. For new construction use rigid boards to insulate slabs and the outside of foundation walls. Board insulation coms in a variety of sizes and can be used for walls floors ceilings and low slope roofs but it s best for floors and walls. Start with the attic floor.

Foam board insulation is used on attics and walls yet it can also be used to insulate your floors. 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. How to calculate the required thickness of loft floor insulation. 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.

Because the simplest and cheapest way to insulate an attic is to add material to the floor. Smaller sizes are also available. The table below shows what levels of insulation are cost effective for different climates and locations in the home. Osb attic decking has a convenient tongue and groove design for easy installation.

Stop using your attic for storage. 0 56 in x 4 ft x 8 ft. Most people do not think about insulating their floors unless perhaps it s their attic floor. Insulation level are specified by r value.

The higher the r value the better the thermal performance of the insulation. The superattic system from dr. Plan to pull up the flooring and layer new insulation on top of the old. Use the tongue and groove feature to lock multiple boards together and improve the organization of your storage space.