Eps Vs Xps Under Siding

Xps comes unfaced or with a number of different plastic facings.

Eps vs xps under siding. However eps insulation has proven to perform just as well in such situations. Extruded polystyrene xps foam is a rigid insulation that s also formed with polystyrene polymer but manufactured using an extrusion process and is often manufactured with a distinctive color to identify product brand. Expanded polystyrene eps foam is a closed cell insulation that s manufactured by expanding a polystyrene polymer. Unfaced 1 in thick xps has a perm rating of around 1 making it semipermeable.

O siding underlayment o pre cast wall panels. However the blowing agents used in the manufacturing process were known to deplete overtime reducing the insulation value. Compatibility xps vs eps insulation for contractors working with a building made of concrete xps tends to be the preferred form of rigid foam insulation. Polystyrene insulations eps and xps provider k 031 course eps 104 1 lu hsw sd.

Frank kiesecker has served as vice president sales and marketing architectural products for ach foam technologies since 2005. O expanded polystyrene eps is a durable rigid foam plastic material that is. Since eps is lower cost per inch than xps and is available in a range of compressive strengths from 10 to 60 psi using it belowgrade and under slabs can save on insulation costs. Extruded polystyrene xps easily recognized by its blue green or pink color xps falls in the middle of the three types of rigid foam insulation in both cost and r value about r 5 per inch.

Xps products product features. O standard 25. Due to its physical properties xps has a higher r value than eps at 4 7 per inch. The appearance is typically a white foam plastic insulation material the likes of which can be found as merchandise packaging.

Ach foam technologies has made it easier for contractors and specifiers to see this with comparable features unavailable until now. Eps costs 10 to 30 less than xps per equivalent r value and compressive strength. Additionally eps is usually present in structured insulated panels.