Eps Foam R Value

Eps foam does not use these types of blowing agents therefore its insulation performance remains stable over its entire life.

Eps foam r value.

Rigid foam insulation packs a lot of r value into a thin package but not all rigid foam performs the same. Eps insulation has found numerous application areas across a wide range of industries due to its light weight and rigidity as well as its thermal resistance properties. Eps foam used create the stone walls and the backdrops for their production eps foam trays for hydroponic and aquaponic gardening 4 foot tall styrofoam snowman for a photo shoot shipping. Below are the results of three research studies performed by the eps industry alliance on the r value of eps vs xps.

Additional r value for a masonry wall constructed using these materials needs to add the insulating value of additional wall components typically included such as 1 solid foam polyisocyanurate r 8 extruded polystyrene r 5 expanded polystyrene r 4 or 1 of perlite r 2 7 and for an exterior air film winter no wind r 0 17 an interior. While the trapped gases in the cells of polysio and xps foam may provide an initial high r value these products have been found to lose r value over their lifetime. R value means the resistance to heat flow. Choose rigid insulation wisely and consider the effect its characteristics will have on the performance of the your project overall product cost and the best way to get the bang for your buck.

Eps insulation 1 0 pcf provides a typical r value of 3 85 per inch k factor 0 26 at a mean temperature of 75 f and a typical r value of 4 17 per inch k factor 0 24 at a mean tem perature of 40 f. As the high r value gases diffuse out of the cellular structure the ability of the insulation to prevent thermal flow is reduced losing up to 30 percent of its original insulating ability. Universal foam products provides expanded polystyrene eps products. In recent years studies continue to show how eps outperforms xps on all levels of r value.

Foam board insulation. Categories energy audit glossary energy efficiency. The higher the r value the greater the resistance to heat flow. Get free shipping on qualified eps foam board insulation or buy online pick up in store today in the building materials department.