Some time ago, in the eighth session of Jiangsu Province to the national green building conference news conference, Jiangsu Province live built hall Center for the development of science and technology s director said: "Qinggang keel gypsum board is a relatively mature technology materials, the existing standards and construction and installation are relatively mature, in residential use is a new situation before we see have been widely applied in office buildings and hotels, residential without the use of a large number of, the public does not understand.
Reporter was informed that a month ago Vanke Shangdu Hui, Jiu Du Hui, Du Hui, Vanke domain Lawan 73 buildings, Vanke Emerald Park five projects, due to the use of new materials Qinggang keel suspected of "toxic", one after another by development of thousand households owners adults.
And owners questioned the focus is that project in did not inform the owners, storied building housing wall used Qinggang keel gypsum board. And the new material does not hang heavy, sound insulation performance is poor, also the material composition of rock wool still exist hidden "gas".
In this regard, Nanjing Vanke commissioned third party organizations, construction quality testing center in Jiangsu Province, the sound insulation, indoor air for the authority of professional on-site testing. On October 30, 2015, Nanjing Vanke released "on the Qinggang keel gypsum board partition, we have to say" in the article, Qinggang keel gypsum board of owners questioned responded, simultaneously announced the third party testing two results are reported.
Two report data show that the use of light steel keel gypsum board wall between the two rooms, sound insulation performance in line with the GB/T50121-2005 "building sound insulation evaluation standard" provisions of the 5. In addition, indoor air radon, formaldehyde, benzene, ammonia, TVOC concentrations are in line with the GB50325-2010 "civil construction indoor environmental pollution control norms" requirements.
As owners of partition of light steel keel can not casually hanging items questioned, Nanjing Vanke said later in the project site open and centralized delivery, for customers to provide detailed hanging installation methods are illustrated. For small objects hanging, Nanjing Vanke will provide free professional tools to help you complete.
Eventually, Nanjing Vanke compromise and willing to meet the owners appeal, contract did not mention the use of light steel keel and no publicity owners can replace the wall, while the contract already mentioned the material will not change the wall.
Reporters learned that, after the Nanjing Municipal Construction Committee to convene the relevant departments to explore the use of light steel keel material. Relevant sources, the use of the material in the use of the material is not illegal, the owners of the rights of the owners are invalid. Currently the owner's behavior has seriously affected the business, if the latter part of the owners to continue to disrupt the normal order of the enterprise, the relevant departments will seriously deal with the.
"We have been concerned about the recent developments in Nanjing light steel keel plate event, the new building development has brought new materials technology." Sun Xiaowen told reporters, light steel keel technology to promote residential areas, in line with the current and future development trends.