Expanded Polystyrene Foam Board Insulation For Basement Walls

Expanded polystyrene insulation more commonly referred to as eps is a closed cell insulation that has been around since the 1950 s.

Expanded polystyrene foam board insulation for basement walls.

There is almost. 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. When this ignition barrier is supported on a stud wall the cavities of this wall may be filled with supplemental insulation. Attach the tongue and groove insulation boards to the concrete wall with adhesive.

For a basement remodeling project consider insulating basement walls with foam board. Many energy experts recommend r 15 to r 20 for far northern states. Follow with a 2x4 frame wall and. Rated at r4 per inch.

Eps expanded polystyrene foam insulation boards. How to glue polystyrene insulation to a concrete wall. From below grade to above grade inside and out halo is the rigid foam insulating system designed perfectly for specific applications including basement floors. 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.

For new construction use rigid boards to insulate slabs and the outside of foundation walls. When you are looking for polystyrene eps insulation board think halo. In most basement wall situations the foam plastic insulation material will need to be covered by a fire ignition barrier. 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.

Use a premade kit for this type of project. Expanded polystyrene is very versatile because it can be molded and cut into different. There are a few different kinds of foam board insulation diyers should know about. What is foam board insulation.

Polystyrene foam boards commonly called foamboard are a clean lightweight convenient way to insulate bare concrete walls. 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. It has a higher r value per inch of thickness it s resistant to moisture and is easy to work with. Spray foam is also an option but usually a lot more expensive than foam boards.

Half inch gypsum board usually provides sufficient ignition barrier check your local building code.