Expanded Polystyrene Foam Board Insulation For Basement Walls

Spray foam is also an option but usually a lot more expensive than foam boards.

Expanded polystyrene foam board insulation for basement walls.

When you are looking for polystyrene eps insulation board think halo. Rated at r4 per inch. How to glue polystyrene insulation to a concrete wall. When this ignition barrier is supported on a stud wall the cavities of this wall may be filled with supplemental insulation.

Polystyrene foam boards commonly called foamboard are a clean lightweight convenient way to insulate bare concrete walls. Eps foam insulation boards are more permeable to air and moisture than xps but it doesn t retain moisture to the same extent because of it s more closed cell structure and it s breathability which lets it dry out. Where polystyrene foam bead insulation has been installed into brick veneer walls as an insulation improvement or retrofit mold and mould odors in building wall and ceiling and even floor cavities may later be traced to leaks into the cavity especially for homes in humid climates such as areas in the u k. From below grade to above grade inside and out halo is the rigid foam insulating system designed perfectly for specific applications including basement floors.

Use a premade kit for this type of project. Expanded polystyrene insulation more commonly referred to as eps is a closed cell insulation that has been around since the 1950 s. Attach the tongue and groove insulation boards to the concrete wall with adhesive. Many energy experts recommend r 15 to r 20 for far northern states.

Half inch gypsum board usually provides sufficient ignition barrier check your local building code. What is foam board insulation. These are panels of rigid foam sold in 4 by 8 foot sheets in a variety of thicknesses from 1 4 to 2 inches it is also sold in large bundled panels joined at the ends accordion style for use as an exterior sheathing material. Eps expanded polystyrene foam insulation boards.

Expanded polystyrene is very versatile because it can be molded and cut into different. Follow with a 2x4 frame wall and. There is almost. Foam board insulation is a great alternative to the very common fiberglass batt insulation that is in most of our homes.

For new construction use rigid boards to insulate slabs and the outside of foundation walls. When using foam insulation on basement walls the building code irc requires r 5 for southern states excluding the deep south and r 10 for the rest of the us. Eps is made of 98 trapped air and only 2 plastic making it an efficient insulator with a small amount of raw material. Rigid foam insulation uses one of three materials.

In most basement wall situations the foam plastic insulation material will need to be covered by a fire ignition barrier.