Two of the most popular lightweight wall materials in the modern construction market are the EPS Cement Sandwich Wall Panel and the traditional AAC block, and many project managers struggle to choose between them. The EPS Cement Sandwich Wall Panel comes as a full finished large size panel, while AAC blocks still need to be laid one by one with mortar, leading to a 3x faster installation speed for the EPS Cement Sandwich Wall Panel. A 100mm EPS Cement Sandwich Wall Panel delivers a thermal conductivity of 0.032 W/mK, far outperforming the same thickness AAC block which only reaches around 0.16 W/mK. The EPS Cement Sandwich Wall Panel has far fewer joints than an AAC block wall, drastically reducing the risk of air leakage and thermal bridging across the whole wall system. When you calculate total labor, material and long term energy costs, the EPS Cement Sandwich Wall Panel delivers 27 percent higher overall value than AAC blocks for most mid to large scale projects.