Abstract: Styro Roofing System is an all in one roofing and partitioning system that eliminates the use of plywood sheeting, insulation, tarpaper, flashing, shingles, guttering and partitioning like sheet rock. The system is profitable in that it is lighter, reduces the manpower to install, cost less and above all last a lifetime. Styro Roofing System is prepared using plastic and foam. There is a grid and rigid plastic sheeting which is one mold, foam, mesh and a clay base cement finish. There are three types of panels, the gutter panel, the sheeting panel and the partition panel. The grid acts as conventional plywood sheeting and is drilled directly to the roof rafters.