We just received our drawings from our architect and discovered that the 7 clerestory windows (facing north with some overhang) are each 5 ft high and 3 ft wide. Our house will be a 2-story contemporary, with the main living areas on the 2nd floor and garage and guest guarters below. We will be living in a sunny state. The windows seem awfully large to us and wonder if they need to be this large. They will bring light into the 2-story entry and 2nd floor hallway that leads into various areas of the house. We would like to reduce the height to at least 4 ft or less so that we can make our entrance door 8 ft high (currently 6 ft,8 in). We would like one of the windows to be directly over the entrance door. Is there a rule as to how to figure out how big these type of windows should be on a house? It is very hard to find information on these type of windows and would appreciate any advice you can give. Thanks much!