Intended for low pitch conservatories, a new system has been designed by Aztec Conservatory Roof Systems to provide an ?invisible? glazing fixing. Self-supporting steel glazing bars provide structural integrity, while minimising intrusion into the ?room? below with a maximum depth below 35mm glazing of less than 30mm. Ploycarbonate ?clip fixes? provide a connection between the polycarbonate sheet, disguising the steel bar and forming a watertight seal. Internally, Aztec has developed a white PVS trim which clips over the steel support to provide a clean internal finish. The system is engineered to create a self-supporting structure capable of spanning up to 12m lengths with a pitch as low as 3deg.. A choice of glazing options in clear, opal and bronze is available.