Overall, for a cool climate, roofs are designed not to prevent the sunlight from getting into the house, whereas in warmer weather there is an overhanging part of the roof which acts as a shade for windows. Furthermore, Heat loss reduction technology is used to keep in the warmth in in cool places. Conversely, stored heat is removed in warmer locations.
It is necessary to install high-angle roofs that do not get in the way of the sun. Plus, windows must be facing the direction in which the sun is. Moreover, heat storage is required inside. This is implemented by using Thermal building materials that cover all the walls and the ceiling from the inside.
In addition, to minimize the heat loss, an insulation system covers all around the house including the underlying part of the roof.
In contrast, when it comes to the architecture of a home in warm weather, reflective roof material is used to build roofs that overhang a little to shield the windows. Similar to cool climate design, insulation exists but only under the roofs. Moreover, windows will be closed and covered during the day. However, they must be left open during the night for ventilation to happen.