As discussed earlier, the climate in Kathmandu is warm-temperate were in the coldest month, January, the average dry bulb temperature is 9,21 degrees Celsius while in the warmest month, July, the average daily dry bulb temperature is 23,28 degrees Celsius. The average irradiation on a horizontal plane are around 0,6 in the summer and in winter it is 0,395. This means that we need to reduce heat loss during winter and reduce overheating during summer. The small difference in average dry bulb temperature makes it easier to construct a building that can exploit the sun for heating in the winter and shade it in the summer. This is possible by optimizing the roof overhang and the size of the windows regarding the sun’s position on the sky. Furthermore, the position of the windows and the length of the building facing the sun is also a parameter that should be taking into consideration. Above it is explained that the vernacular buildings in Kathmandu are positioned with the long wall facing south, this optimizes the heating from the sun during winter and during summer the sun will be positioned higher in the sky and therefore not contribute in a high scale to the overheating. On the contrary, it is useful to store the heat from the sun in daytime so it can heat the building during night time. Another important consideration regarding heat loss is the placement of the different rooms. By using buffer zones, as for example bedrooms, you can reach a comfortable temperature in the main area, as for example the living room.