Green building is an important embodiment of an efficient, simple, livable and sustainable city. China's Ministry of Construction and Ministry of Science and Technology for the "Tenth Five-Year" national key project of science and technology research on green building key technologies, mainly on China's green building development model has a new understanding in order to achieve leapfrog development of the construction industry.
1. The connotation of green building
Green building is also a sustainable ecological building. It refers to saving resources (saving energy, saving land, saving water, saving materials) to the maximum extent within the entire life cycle of a building, protecting the environment and reducing pollution, and providing people with healthy, suitable and efficient use of space. Its architecture and natural symbiosis , Is recyclable and sustainable. Green buildings provide people with healthy and safe living space while also having the lowest environmental impact, so low energy consumption is the most important feature of green buildings.
Low-carbon model of green building refers to the use of eco-building, energy-saving technologies, eco-materials, etc. from building materials, equipment to construction, to the use of buildings throughout the life cycle, so as to reduce material consumption and improve energy efficiency, thus achieving low carbon building Built building.
2. China's green building problems
At present, the construction of urban and rural areas in our country is still a pattern of extensive growth, mainly manifested in the following aspects: only focusing on the quantity, ignoring the quality, low land use efficiency, too few applications of renewable energy buildings and short service life of the building; Use of the overall level is not high, a variety of waste is very serious. Mainly in:
2.1 do not know the place
Now that the concept of green has become a household name, some people still do not have enough understanding of the concept of green building. For example, some developers use "green building" as their slogan in real estate sales and people mistakenly confuse green building with high-end building. Some people also think of green buildings as green buildings in the surrounding area. In fact, green buildings not only focus on the building's surrounding environment
Also emphasize the building itself. In general, green buildings emphasize energy saving, greening and water saving. Therefore, green building includes many aspects instead of just greening.
2.2 green building key technology research and development and application of less
There are few technological innovations in green building and green building related technologies with independent intellectual property rights are slow to develop. China's green building for the key technologies, products, software and equipment independent research and development are relatively slow. Should increase investment in science and technology to speed up the green building of basic and common technology research and development and industrialization process.
2.3 Technical standards need to be further improved
June 1, 2006 "Green Building Evaluation Standards" (GB / T-2006) was officially promulgated and implemented, due to over-hype by businesses and green building concept can not be confirmed. Although the Ministry of Construction of green building evaluation marking work has officially started, but there are many real estate developers have not been recognized as the standard of their own buildings are green buildings. This requires us to further improve the technical standards, all buildings should be rigorous green assessment of the building energy-saving design, construction, acceptance, testing and operational standards to further improve.
3. The principle of green building Â
In general, the principle of green building should follow:
3.1 applicable technology. Some people mistakenly think that green building is a very expensive and expensive building. In fact, the green building adopts the applicable technology to reduce energy consumption, such as natural ventilation and wall insulation, and energy saving and ecologicalization can be achieved through the use of wind and solar energy purpose.
3.2 life cycle assessment. From the production of building materials to the construction of buildings will produce the corresponding emissions, waste. Green building is very focused on energy-saving emission reduction and construction after the end of life cycle and so on.
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