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Look! How does planting roof drive the development of waterproofing industry?
Update time：2012-01-17 11:10:46clicks：3495次Type size：T|T
It is understood that the planting roof is a kind of roof that is paved with planting soil on the waterproof layer of the building roof and underground engineering roof, and plants are planted to make it waterproof, thermal insulation, thermal insulation and ecological environmental protection. Planted roofing first appeared in Germany, and gradually became popular around the world after people became aware of its beneficial impact on the environment. Making full use of the roof of the building for greening can not only improve the urban ecological environment, save resources, effectively alleviate the urban heat island effect, but also play a stable and good role in building thermal insulation. In addition, the role of planted roofing in urban rainwater utilization is also getting more and more attention.
The expansion of the planted roofing market is expected to drive the development of the waterproof industry
According to the national requirements, by 2020, green buildings will account for more than 30% of new buildings, which will effectively drive the development of new building materials, new energy, energy-saving services and other industries, and its potential market size may exceed one trillion yuan. As an important part of green building, planted roofing is expected to expand the market scale by taking advantage of the green building wind, and the waterproof coil industry closely related to planted roofing will also benefit.
Data disclosed by the China Building Waterproofing Association show that from January to June 2017, the output of asphalt waterproofing coils of enterprises above designated size was 442.78 million square meters, an increase of 11.4% over the same period last year. It can be seen from the data that the output of asphalt waterproof coil in China is increasing year by year. In a wide range of applications, nearly 70% of the production of waterproofing coils is used in real estate construction, including planted roofing. It is foreseeable that with the continued prosperity of the real estate industry and the development of planted roofing, the scale of demand for waterproof coils will continue to expand.
Planting waterproof roofing material selection
The main structure of planting roof is roof plate, insulation layer, waterproof layer resistant to root puncture, water storage (drainage) layer, planting substrate and planting vegetation. The technology of planting roof root piercing waterproof layer is directly related to the safety of buildings, so the waterproofing of planting roof is different from that of ordinary roof, and the requirements are very strict. According to the requirements of the design regulations, two waterproof layers are set up: one waterproof layer resistant to plant root puncture and one ordinary waterproof layer. The waterproof layer that is resistant to plant root puncture must be laid with waterproof coils that meet the requirements of plant root puncture.
In the selection of waterproof materials for planting roofing, attention should be paid to the following aspects: 1, because the roots of herbaceous plants are developed, the waterproof layer may be affected by plant roots, and materials that are not easily damaged by roots should be selected; 2, planting roofing waterproof material must have hydrolysis resistance, mildew resistance, rot resistance, and the ability to resist weak alkali corrosion, paper tire linoleum, composite tire waterproof coil, easy to hydrolyze waterproof coating should not be selected; 3, waterproof materials need to have reliable joint sealing; 4, the waterproof layer material does not contain water-soluble heavy metal ions and other components that damage plant roots and affect plant growth.
At the same time, in the JC/T1075-2008 "root piercing waterproof coil for planting roofing" industry standard, it is stipulated that the waterproof coil that can be applied to the root piercing waterproof layer has the following five kinds: Elastomer modified asphalt waterproof sheet (GB18242-2008), plastic body modified asphalt waterproof sheet (GB18243-2008), modified asphalt polyethylene waterproof sheet (GB18967-2009), polyvinyl chloride waterproof sheet (GB12952-2011), Polymer waterproof sheet (GB18173.1-2012). Thermoplastic polyolefin (TPO waterproof coil) with the same function as polyvinyl waterproof coil has also been introduced in the market in recent years.
Measures to promote the development of planting roofing industry
In Germany, Sweden, Japan, Singapore, Canada, the United States and other developed countries, planting roofing has been very common, and some countries have also formulated relevant laws and regulations. After years of research and practice, China's planted roofing has been carried out in Beijing, Shanghai, Shenzhen, Tianjin, Hangzhou, Chengdu, Chongqing and other cities, and has achieved certain landscape and ecological effects, and has also formulated relevant standards and regulations. However, although planting roofing is often advocated, the real implementation is few. In China, in addition to planting roofing in drought and less rain areas, most areas are applicable, there are many kinds of native plants to choose from, and you can make great space for progress.
At present, people's concerns about the feasibility of roof greening are mainly attributed to the problems of building load, roof leakage and drainage, plant cultivation and maintenance. A professional who has been engaged in landscaping research for many years said that the current roof greening technology is maturing, and the feasibility is not a problem. This also reflects the lack of awareness of planting roofing, which is one of the problems that the entire industry needs to focus on in the future.
Throughout the development history of planted roofing at home and abroad, government guidance is the biggest driver to promote the development of planted roofing industry, and relevant planted roofing policies and regulations are one of the driving forces for the development of planted roofing. Relevant government departments should learn from successful experiences at home and abroad, formulate laws and regulations for planting roofing step by step, and introduce relevant targeted policies. In addition, strengthening the construction management of the industry, improving the quality of construction personnel, and increasing the publicity of planting roofing public opinion are also important measures to promote the expansion of the market size of the planting roofing industry.
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The expansion of the planted roofing market is expected to drive the development of the waterproof industry
According to the national requirements, by 2020, green buildings will account for more than 30% of new buildings, which will effectively drive the development of new building materials, new energy, energy-saving services and other industries, and its potential market size may exceed one trillion yuan. As an important part of green building, planted roofing is expected to expand the market scale by taking advantage of the green building wind, and the waterproof coil industry closely related to planted roofing will also benefit.
Data disclosed by the China Building Waterproofing Association show that from January to June 2017, the output of asphalt waterproofing coils of enterprises above designated size was 442.78 million square meters, an increase of 11.4% over the same period last year. It can be seen from the data that the output of asphalt waterproof coil in China is increasing year by year. In a wide range of applications, nearly 70% of the production of waterproofing coils is used in real estate construction, including planted roofing. It is foreseeable that with the continued prosperity of the real estate industry and the development of planted roofing, the scale of demand for waterproof coils will continue to expand.
Planting waterproof roofing material selection
The main structure of planting roof is roof plate, insulation layer, waterproof layer resistant to root puncture, water storage (drainage) layer, planting substrate and planting vegetation. The technology of planting roof root piercing waterproof layer is directly related to the safety of buildings, so the waterproofing of planting roof is different from that of ordinary roof, and the requirements are very strict. According to the requirements of the design regulations, two waterproof layers are set up: one waterproof layer resistant to plant root puncture and one ordinary waterproof layer. The waterproof layer that is resistant to plant root puncture must be laid with waterproof coils that meet the requirements of plant root puncture.
In the selection of waterproof materials for planting roofing, attention should be paid to the following aspects: 1, because the roots of herbaceous plants are developed, the waterproof layer may be affected by plant roots, and materials that are not easily damaged by roots should be selected; 2, planting roofing waterproof material must have hydrolysis resistance, mildew resistance, rot resistance, and the ability to resist weak alkali corrosion, paper tire linoleum, composite tire waterproof coil, easy to hydrolyze waterproof coating should not be selected; 3, waterproof materials need to have reliable joint sealing; 4, the waterproof layer material does not contain water-soluble heavy metal ions and other components that damage plant roots and affect plant growth.
At the same time, in the JC/T1075-2008 "root piercing waterproof coil for planting roofing" industry standard, it is stipulated that the waterproof coil that can be applied to the root piercing waterproof layer has the following five kinds: Elastomer modified asphalt waterproof sheet (GB18242-2008), plastic body modified asphalt waterproof sheet (GB18243-2008), modified asphalt polyethylene waterproof sheet (GB18967-2009), polyvinyl chloride waterproof sheet (GB12952-2011), Polymer waterproof sheet (GB18173.1-2012). Thermoplastic polyolefin (TPO waterproof coil) with the same function as polyvinyl waterproof coil has also been introduced in the market in recent years.
Measures to promote the development of planting roofing industry
In Germany, Sweden, Japan, Singapore, Canada, the United States and other developed countries, planting roofing has been very common, and some countries have also formulated relevant laws and regulations. After years of research and practice, China's planted roofing has been carried out in Beijing, Shanghai, Shenzhen, Tianjin, Hangzhou, Chengdu, Chongqing and other cities, and has achieved certain landscape and ecological effects, and has also formulated relevant standards and regulations. However, although planting roofing is often advocated, the real implementation is few. In China, in addition to planting roofing in drought and less rain areas, most areas are applicable, there are many kinds of native plants to choose from, and you can make great space for progress.
At present, people's concerns about the feasibility of roof greening are mainly attributed to the problems of building load, roof leakage and drainage, plant cultivation and maintenance. A professional who has been engaged in landscaping research for many years said that the current roof greening technology is maturing, and the feasibility is not a problem. This also reflects the lack of awareness of planting roofing, which is one of the problems that the entire industry needs to focus on in the future.
Throughout the development history of planted roofing at home and abroad, government guidance is the biggest driver to promote the development of planted roofing industry, and relevant planted roofing policies and regulations are one of the driving forces for the development of planted roofing. Relevant government departments should learn from successful experiences at home and abroad, formulate laws and regulations for planting roofing step by step, and introduce relevant targeted policies. In addition, strengthening the construction management of the industry, improving the quality of construction personnel, and increasing the publicity of planting roofing public opinion are also important measures to promote the expansion of the market size of the planting roofing industry.
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