Most friends don't know much about the special terms of some real estate. They can only feel the quality of the housing living environment through on-the-spot house viewing. However, many new houses are auction houses and can't feel the living conditions on the spot. They can only judge through some data. Today, I will talk about the problem of building spacing. How much is the building spacing enough? What is the impact of building spacing on living?
How much space is enough
Floor spacing, as the name suggests, is the distance between buildings, specifically refers to the distance between the outer walls of two adjacent buildings. The building spacing is divided into front to back spacing and left to right spacing. The front to back spacing mainly meets the requirements of sunshine, ventilation, vision, landscape, etc; The left-right spacing mainly meets the requirements of fire protection, traffic and noise prevention.
The distance between the front and back of the house and the living room in the ordinary community can be calculated by the ratio of building height: building distance = 1:1.2. According to the national regulations (design specifications), the sunshine time in winter solstice shall not be less than 1 hour (the window at the bottom of the house) as the standard. The left-right spacing of the house is 4-6 floors and below, the spacing with multi-storey buildings is 6m, the spacing between multi-storey and high-rise (12 floors and above) is 9m, and the spacing between high-rise and high-rise is 13m.
The building spacing (front to back distance) is calculated according to the sunshine spacing. The calculation formula is: tanh = (h-h1) / D, so the sunshine spacing should be: D = (h-h1) / tanh;
Where: H - solar altitude angle; H - height from the cornice of the front house to the ground; H1 - height from the window sill of the rear house to the ground; D - Sunshine distance.
What is the impact of building spacing on living
1. Daylighting
The number of building spacing directly affects the daylighting effect of the house. We all know that the south facing house has good daylighting, but we don't know that if the building spacing is too close, even the south facing house may have insufficient daylighting. Especially in winter, the low floors often have to turn on the lights in broad daylight to work. The temperature in the room is low and humid, which is often caused by the close spacing between the buildings.
2. Privacy
The building spacing is too narrow, that is, the distance between the two buildings is very close, and your every move at home may be seen by the residents opposite. Especially for girls, privacy is very important. Too small building spacing will make people feel very insecure.
3. Ventilation
Ventilation is still very important for living. As we all know, whether a house is healthy and comfortable, in addition to sufficient sunshine time, good ventilation performance is also an important indicator. If the building spacing is too close, the front building will often block the normal ventilation of the back building, affecting the ventilation needs of the owners of the back building.
4. Noise
Generally, there will be sidewalks between the two buildings, and there will be vehicles passing between some larger residential buildings. If the building spacing is too close, the sound of pedestrians and vehicles passing between the two buildings will be clearly transmitted into the room. In the evening, the TV sound, door bell and mahjong sound of the opposite building will seriously affect your rest.
5. Safe
In some residential areas (especially old residential areas), the building spacing is very small. In addition, the roadside may be full of residents' motor vehicles. If there is a fire, the fire engines can't drive in at all. There will be major hidden dangers in the safety of such a community, which will bring hidden dangers to the personal and property safety of residents.