Sunshine exposure angle chart of buying a house
In order to get enough sunshine for the ground floor of the building, generally speaking, the spacing between buildings is smaller in low latitude areas and larger in high latitude areas. Mainly because the higher the latitude, the smaller the solar altitude angle and the longer the shadow. In order not to affect the shadow between buildings, it is necessary to choose the appropriate building spacing. For example, in China, in the area north of the Tropic of Cancer, in order to ensure one floor, all rooms have sunshine all year round, and the relationship between the shortest distance between two floors and the building height. It should be as shown on the right (α is the local noon sun height from winter to morning), and L should be greater than or equal to H COT α. Why choose the solar altitude angle of winter solstice? Because in most parts of China, the sun's altitude angle is the smallest and the shadow is the longest from the winter solstice. If the shadow of the winter solstice does not cover the building, then the building will have the sun all year round.
Therefore, when choosing floors, try not to choose the ground floor, because sometimes real estate development does not consider the floor spacing, which will lead to no sunshine in the rooms on the ground floor for a year. It also makes the low-rise residential buildings in the same building generally cheap. Finally, when choosing a house, we should also consider the direction of the sun's sunrise and sunset, for example, the sunrise in summer in China is in the northeast and the sunset in the northwest; Half a year in winter, sunrise in the southeast and sunset in the southwest. Therefore, the house in the west may be exposed to the sun, which will also lead to the lower price of the house in the west. Of course, many times we can't see an existing house, so we should think carefully about buying a second-hand house.
All directions of the house and sunshine schedule
If the house faces south, the sunshine time is usually 9: 00- 15: 00.
If the orientation of the house is 1- 15, the sunshine time is generally 9: 00- 15: 00.
If the orientation of the house is 1- 15 from south to west, the sunshine time is generally 9: 00- 15: 00.
If the house faces south to east 16-30, the sunshine time is usually 9: 00- 14: 30.
If the house faces south and west 16-30, the sunshine time is generally 9: 30- 15: 00.
If the house faces south to east 3 1-45, the sunshine time is usually 9: 00- 13: 30.
If the orientation of the house is 31-45 from south to west, the sunshine time is generally 10: 30- 15: 00.
If the house faces 46-60 east, the sunshine time is generally 9: 00- 12: 30.
If the house faces south to west 46-60, the sunshine time is generally:11:30-15: 00.
If the house faces south to east 6 1-75, the sunshine time is generally 9: 00- 1 1: 30.
If the orientation of the house is 6 1-75 from south to west, the sunshine time is generally 12: 30- 15: 00.
If the house faces south to east 76-90, the sunshine time is generally 9: 00- 10: 30.
If the house faces south to west at 76-90, the sunshine time is generally: 13: 30- 15: 00.
The sunshine angle map of buying a house, the details of the house in all directions, and the sunshine schedule are all sorted out for everyone. The light quality of the house directly affects people's health and living environment, so try to choose a house with good light to buy. For more house buying skills, you can continue to learn more here.