... .Easy to install and use 5.Corrosion and Prevention Fashion materials for roof and wall And very cheap and durable Even ... weight, easy installation, easy maintenance. And the core materials we can use are: EPS Foam, Rock Wool, Glass Wool and PU Foam ... , Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe EPS/Rock Wool/Glass Wool/PU Sandwich Panel