It is necessary to consider the coefficient of thermal conductivity but also to measure up the weight of insulation materials at the same thermal resistance in use of thermal insulation materials. The thicker thermal insulation material is, the less convenient is the construction process; the greater the volume is, the more load the structure takes.

When reaching the same insulation effect, compared with cement, stone, gypsum board, wood, and other common wall panels, the panel is the thinnest.

When all the panels are same in the thickness, the thermal conductivity of the panel is the lowest.