Floor height ≥ 3, sound insulation +1... This is what the "new house" will look like in the future →

The Ministry of Housing and Urban-Rural Development issued the national standard "Residential Project Specifications" on March 31. The new standard takes residential projects as a whole as its object, and takes safety, comfort, greenness and intelligence as its goals, and stipulates the construction, use and maintenance of residential projects in terms of scale, layout, function, performance and key technical measures.

(1) The height of new residential buildings shall not be less than 3 meters

The floor height is the vertical distance between two adjacent floors. According to the specification, the floor height of new residential buildings has been raised to "no less than 3 meters". Zeng Yu, chief architect of the Architectural Design Institute of China Academy of Building Research Co., Ltd., said that the specification has increased the floor height by 20 centimeters, which can provide better natural lighting and ventilation indoors, give residents a better sense of space, provide conditions for diversified decoration, and enhance functional flexibility.

(2) Elevators are installed in residential buildings with 4 floors or above

Zeng Yu introduced that my country has entered a moderately aging society, and it is difficult for the elderly to go up and down stairs. Installing elevators starting from the 4th floor can meet the needs of the elderly and also facilitate residents' daily travel and carrying of heavy objects.

Currently, there is a demand for installing elevators in a large number of multi-story residential buildings, but due to various restrictions, it is very difficult to implement. The requirement that newly built residential buildings should have elevators starting from the 4th floor can basically cover the vast majority of residential buildings and avoid the problem of installing elevators in the future.

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(3) Public mobile communication signals are required to cover public spaces and elevator cabins;

When there is an emergency, external communication can be made in a timely manner to enhance residents' sense of security.

(4) Improve the sound insulation performance of walls and floors

According to the survey, there are many complaints caused by noise. This specification improves the airborne sound insulation performance between the bedroom and living room partition walls and the rooms on both sides of the partition floor, as well as the impact sound insulation performance of the partition floor. In addition, noise limit requirements are proposed for structural noise transmitted from building equipment to bedrooms and living rooms, and toilet drainage noise.

Yan Guojun, director of the Acoustic Environment Research Center of China Academy of Building Research Co., Ltd., introduced that the standard has improved the requirements for residential acoustic environment indicators and can effectively reduce noise interference.

In addition, this specification puts forward a series of requirements for barrier-free and aging-friendly construction. For example:

▶It is required that handrails should be installed next to toilets and bathtubs or reserved installation conditions;

▶Each residential unit should have at least one accessible public entrance and exit;

▶Increase the clear width requirements for household doors and bathroom doors to facilitate the entry and exit of the elderly with assistance or in wheelchairs;

▶Propose the size of the elevator car and the height of the emergency call button.

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The quality of indoor thermal environment is related to the feeling of "warmth and coldness", and is a key performance indicator to ensure human health, comfort, and improve living satisfaction. The specification puts forward basic performance requirements for residential buildings from three aspects: winter insulation, summer insulation, and building ventilation .

"In areas with hot summers and cold winters, it is hot in summer and cold and humid in winter. From the perspective of livability, certain measures need to be taken to ensure the indoor thermal environment." Wang Qingqin, a professor-level senior engineer at the China Academy of Building Research Co., Ltd., introduced that this specification takes into account the winter heating needs of people in areas with hot summers and cold winters, such as the Yangtze River Basin, and stipulates that residential buildings in areas with hot summers and cold winters should be equipped with heating and air-conditioning facilities or reserved installation locations .

summary

The relevant department head of the Ministry of Housing and Urban-Rural Development said that with the rapid economic and social development of my country, people's living standards and the level of construction technology development have greatly improved, and there is a higher demand for improving housing quality. The new standard combines the construction practice of residential projects in my country in recent years, and on the basis of the evaluation of the implementation of the current residential standards, after extensive consultation and full demonstration, puts forward the bottom line requirements for residential projects, which will more effectively support the high-quality development of urban housing.

Comprehensive sources: Xinhua News Agency, People's Daily, News Broadcast WeChat, etc.