The well proportioned ovalo design gives EXCLUSIVELY FINE AESTHETIC PROPORTIONS from both inside and out. With glazing options for both glass and polycarbonate, there is a choice of sizes, which combined with optional internal reinforcing allows for unsupported spans previously unobtainable with patent glazing bar derivatives. The Rafter locates positively, inside the Ringbeam, within the thermal break. Glazing is carried over the Ringbeam on a PVC Glazing carrier to maintain full thermal integrity.