CGI Estate Collection rectangular fixed hurricane windows are designed to match the sightlines of our casement and project-out hurricane windows. Once installed, these hurricane windows appear identical to the impact resistant casement and project-out windows when viewed from the outside. From the inside, the only noticeable difference is the lack of hardware or screens. There are less expensive ways of manufacturing a fixed hurricane window, but consistent with CGI’s heritage our Estate fixed windows have been designed to provide a strong, high quality and aesthetically pleasing choice.