15 kg / m3 density with EPS heat conductivity coefficient EN 13163 (European Standards) according to the calculation 0.037 W / (mK). Our company uses the lowest density EPS 22, you should get your account as coefficient of 0.034. Cm 3 as jacketing material to be our insulation is sufficient according to these values even in Izmir. However, we recommend our products to the 4 cm. 3 cm compared to a standard building material conditions we also provide Izmir is 60%, the thermal insulation of the walls. They provide thermal insulation materials 4cmlik is 75%. 4 cm According to our calculation of thermal insulation costs a small amount of material in a shorter period of time although it has emerged that more than pays for itself