By simply adding the OpenSpace Living w17-c all-glass sliding door you can very easily and quickly turn your Glass Veranda patio roof into a stunning all year round Glass Room that will protect you from the famous British weather. By using the “actuator function” to close the entire glass system with one easy pull, coupled with the frameless glass sides, ensures you a full, uninterrupted view of the outdoors with either the sliding doors fully closed or open.