Offset Glazed (OS) Systems offer a shallow face reveal which creates a flush exterior appearance. OS Systems were designed for labor-saving stacking-type installations and may be inside or outside glazed. Internal water deflectors at intersection of intermediate horizontal and vertical mullions allow infiltrated water to be drained into a continuous sill gutter and weeped to the exterior. Optional vertical mullions for structural silicone glazing are available for 1/4" glazing infills. These systems accommodate most United States Aluminum entrance doors.
