XPS belongs to styrofoam insulation materials but it is manufactured using different technology as the expanded polystyrene (EPS). By the XPS manufacturing, the polystyrene is extruded (under pressure) to the spevial tunnel (extrudor).
XPS vs EPS difference
Which leads us to the most important difference between these two insulation styrofoams and it is that the extruded polystyrene insulation (XPS) cellular structure is closed. Therefor the XPS doesnīt absorb water, itīs capilarity is very low and also itīs thermal conductivity is much lower than of EPS. Based on the above properties of extruded polysyrene, it is mostly used when constructing the roofs with the reverse order of i...
