The stairwell does not have natural lighting?

Yes. Stairwells have ventilation requirements.

Code for Fire Protection Design of Buildings GB 50016-2006 Closed stairwells should first meet the requirements of Article 1 "Stairwells should be able to provide natural lighting and natural ventilation, and should be set up against external walls" In addition to the provisions of Article 1 of this code, closed stairwells should also meet the following requirements: when natural lighting and natural ventilation are not possible, they should be set up according to the requirements of smoke-proof stairwells;

Article The net area of the natural smoke exhaust outlet shall comply with the following provisions:

1. The front room of the smoke-proof stairwell and the front room of the fire elevator should not be less than; Anterior chamber should not be less than;

2. For smoke-proof stairwells against external walls, the total area of smoke exhaust windows that can be opened in every 5 floors should not be less than;

3. The atrium and theater stage shall not be less than 5% of the ground area of the atrium or theater stage building;

4 For other places, it is advisable to take 2% of the construction area of the place 5. These two articles should be understood together: according to the requirements of the specification.

When the closed stairwell can not be lit and naturally ventilated, it should be set up according to the smoke-proof stairwell, and when the smoke-proof staircase adopts natural smoke exhaust (which also means that the closed stairwell can also naturally exhaust smoke at this time), the sum of the window area of each five floors should not be less than 2 square meters. Taken together, these two articles can already explain the smoke exhaust requirements of the closed stairwell, which is also a necessary condition to ensure the evacuation of personnel through the stairs.

In order to solve the problem of "when there is no natural lighting and natural ventilation, why should smoke-proof facilities be set up in the stairwell", Buke.com sorted out the solutions related to "why should smoke-proof facilities be set up in the stairwell when natural lighting and natural ventilation cannot be natural lighting and natural ventilation" through the Internet, and the detailed questions of users include: when natural lighting and natural ventilation cannot be achieved, why should smoke-proof facilities be set up in the stairwell, and the specific solutions are as follows:

Which buildings need smoke-proof stairwells? What are the requirements for smoke-proof stairwells?

Answer: The content is described in the "Code for Fire Protection Design of Buildings" and the smoke-proof stairwell shall comply with the following provisions in addition to the relevant provisions of Article 1 of this Code: 1. When natural lighting and natural ventilation are not possible, the stairwell shall be set up with smoke-proof or smoke-exhaust facilities in accordance with the provisions of Chapter 9 of this Code, and shall be set up in accordance with the provisions of Chapter 11 of this Code.

Do smoke-proof stairwells and enclosed stairwells need natural light?

Answer: The stairwell does not have natural lighting is not in accordance with the code of fire protection of buildings GB 50016-2006 regulations, the closed stairwell must first meet the first article "the stairwell should be able to have natural lighting and natural ventilation, and should be set up against the external wall", public stairs are more needed; Article closed stairwells shall comply with the provisions of Article 1 of this Code.

GB 50016-2006 regulations, closed stairwells must be met first.

The first "stairwell should have natural lighting and natural ventilation, and should be set up against the external wall", public stairs are even more needed;

Article closed stairwells should comply with the provisions of Article 1 of this code, but also meet the following provisions: when natural lighting and natural ventilation can not be achieved, should be smoke-proof stairwells.

requirements.

The height of the indoor space of the house should not be less than meters, and the distance between each building should not be less than the height of the building multiplied by the coefficient. According to national regulations (design specifications), the sunshine time of the winter solstice is not less than 1 hour (the lowest window of the house) as the standard. The spacing is the height from the exterior of the building to the cornice of the house, and the angle of the sun at noon on the winter solstice.

It can also be calculated as: building height: building spacing = ratio.

The lighting regulations are: the sunshine standard day is a cold day, and the effective sunshine time zone is from 8 a.m. to 4 p.m. The general residential sunshine standard requires a minimum of 2 hours on a cold day.

Modern home houses, such as houses in residential areas, high-rise buildings, etc., are all buildings.

Since October 1, 2007, the Property Law has clearly stipulated the right to daylight, and the Property Law (Article 89) stipulates that the construction of buildings shall not violate the relevant engineering construction standards and obstruct the ventilation, lighting and sunshine of adjacent buildings.

Since October 1, 2007, the Property Law has made clear provisions on the right to daylight, and the Property Law stipulates (Article 89):

The construction of buildings shall not violate the relevant national engineering construction standards and obstruct the ventilation, lighting and sunshine of adjacent buildings.

Expert's statement: The so-called adjacency relationship is, in short, the relationship of rights and obligations between the adjacent parties to the immovable property due to the exercise of ownership or use rights. Experts believe that in recent years, with the acceleration of urban construction and the tightening of residential construction land, some developers have violated the construction rules and over-planned construction, resulting in too high the number of new residential floors and too large density.

According to the provisions of Chapter III of the spacing of residential buildings and the management of residential sunshine: Residential sunshine management Article 23 Residential sunshine refers to the number of hours of sunshine with full windows in the main lighting surface of the residence. The standard sunshine day is a cold day, and the effective sunshine time zone is from 8 a.m. to 4 p.m.

The general residential sunshine standard requires a minimum of 2 hours on a cold day.

According to the Code for Planning and Design of Urban Residential Areas, it belongs to the climatic area, with a sunshine duration of 2 hours in large cities and 3 hours in small and medium-sized cities. It belongs to the climatic zone, with a sunshine duration of 3 hours in large cities and 1 hour in small and medium-sized cities.

The duration of sunshine is based on the standard sunshine day. Sunshine standard day: belongs to the climatic area, large, medium and small cities take the big cold day as the standard. It belongs to the climatic zone, and large cities take the big cold day as the standard, and small and medium-sized cities take the winter solstice day as the standard.

In addition, residential buildings for the elderly should not be lower than the standard of 2 hours of sunshine on the winter solstice.

Extended information: The spacing of residential buildings should be determined on the basis of meeting the requirements of sunshine, taking into account the requirements of lighting, ventilation, fire protection, disaster prevention, pipeline burial, visual hygiene, etc.

Residential sunshine standards should be in accordance with the table and the following for specific situations:

1) The residential building for the elderly should not be lower than the standard of 2 hours of sunshine on the winter solstice;

2) The addition of any facilities outside the original design building should not reduce the original sunshine standard of the adjacent dwelling;

3) The sunshine standard of new residential buildings in the project of rebuilding the old area can be lowered as appropriate, but it should not be lower than the standard of 1 hour of sunshine on a cold day.

The spacing between the sides of the dwelling shall comply with the following provisions:

1) Strip dwelling, between multiple floors should not be less than 6m; The distance between high-rise and residential buildings of various floors should not be less than 13m;

2) Visual hygiene factors should be considered between high-rise tower houses, multi-storey and mid-rise point houses and various storey houses with windows on the side, and the spacing should be appropriately increased.

China Water Supply Industry Network: Code for Planning and Design of Urban Residential Areas

1.Each dwelling should have at least one living space with access to winter sunshine.

2.The width of the window opening in the living space that needs to receive winter sunlight should not be less than.

3.Bedrooms, living rooms (halls) and kitchens should have direct natural light.

4.The lighting coefficient of bedrooms, living rooms (halls) and kitchens should not be less than 1%; When the stairwell is provided with a lighting window, the lighting coefficient should not be lower.

5.The window-to-floor area ratio of the lighting window openings of bedrooms, living rooms (halls) and kitchens should not be less than 1 7.

6.When the stairwell is provided with a lighting window, the window-to-floor area ratio of the lighting window opening should not be less than 1 12.

7.The area of the window opening where the lower edge of the window is lower than the floor or ground height shall not be included in the lighting area, and the height of the upper edge of the window opening from the ground shall not be lower.

China's "National Standard Urban Residential Area Planning and Design Code of the People's Republic of China (GB50180-93)" (hereinafter referred to as the "Code") stipulates: "The sunshine standard for residential buildings in large cities is 2 hours on a cold day and 1 hour on the winter solstice, and the residential buildings for the elderly should not be lower than the standard of 2 hours of sunshine on the winter solstice; The addition of any facilities outside the original design building shall not reduce the original sunshine standard of the adjacent dwelling; The sunshine standard for new residential buildings in the project of renovating the old area can be lowered as appropriate, but it should not be lower than the standard of 1 hour of sunshine on a cold day. ”

According to the standards set by the Ministry of Construction, the height of the indoor space of the house should not be less than meters, and the distance between the buildings should not be less than the coefficient of multiplying the height of the building. If you are in a building with a height of 18 meters, the distance between the buildings should be 18*meters. Therefore, if the spacing between buildings is less than meters, it is lower than the national standard.

You can file a claim for compensation. According to the sunshine standard given in the national "General Principles for Civil Building Design": "Residential houses should have at least one room per household, and dormitories should have at least half of the rooms on each floor that can obtain full windows and sunshine for no less than 1h (hours) on the winter solstice."

Just look at whether the south window of your house has 1 hour of daylight on the winter solstice. If the above criteria are not met, compensation can be claimed in accordance with the relevant legal provisions. As for the issue of compensation.

The regulations are different in each region, and the compensation standards are also different.

The main purpose of opening the windows in the closed stairwell is to ventilate the smoke and exhaust the bar, and the evacuation generally has artificial emergency lighting, and natural lighting is not too important. If it is a natural smoke exhaust requirement, you can refer to point 5 of the building regulations and take 2%-5% of the total floor area of the closed stairwell

There are 5 floors not with 2 squares.