System 8 System 8 System 8   System 8 Interior Wood Extensions The new Modular System 8 is a complete prefabricated package, including "window-wall" sections, roof beams and interior finish mouldings. This revolutionary design allows you to build our beautiful System 8 without extra framing materials or difficult carpentry. Everything is included in a complete "Pre-Fab" kit. Quality design features include exterior aluminum finish in white, bronze or sandtone, northern white pine laminated beams, integral drainage system, fixed or operable casement windowsa nd new, much lower prices (thanks to our revolutionary design). 100% of ALL Four Seasons Products Use Tempered Safety Glass! Our glass is four to six times stronger than ordinary window glass and much safeter too. In fact, our tempered safety glass has smooth rounded edges and meets ANSI 297.1-1984 codes for safety. If broken it would shatter into harmless rounded pellets.