Organic building insulation materials industry ushered in new challenges

Editor:Zhejiang Zhenshen Insulation Technology Corp. Ltd. │ Release Time:2019-03-04 

   The Fire Department of the Ministry of Public Security issued the "No. 65 Document", which clearly stipulates that "Class A fireproof materials (incombustible materials) shall be used for building insulation materials." This order is out, the industry is in vain. This is undoubtedly a huge blow to the organic insulation industry such as flammable polyurethane.

  In 2010, the Jiaozhou Road Teacher's Apartment in Jing'an District of Shanghai was ignited like a torch. The official statistics of the number of victims reached 58. The survey concluded that the polyurethane insulation materials used in the fire-fighting construction project are flammable. Major General Zhu Liping of the Fire Department of the Ministry of Public Security pointed out that "flammable insulation materials such as polyurethane foam have become the main culprit in the current fire death." According to statistics from the China Building Energy Conservation Materials Association, at present, more than 80% of external wall insulation materials are foamed in domestic building energy conservation. Polystyrene board (EPS, the most common white foam), extruded polystyrene board (XPS, highly compressed white foam), sprayed polyurethane (SPU), and polystyrene particles。

  It is the Shanghai Polyurethane Industry Federation that stands up and "washes the charges". On September 27, 2011, the Shanghai Polyurethane Association organized a number of developers and supervisors to hold the “No. 65 Document Building Insulation Way Out and Countermeasures” salon in Shanghai. President Qian Yongqin said: "Do not accidentally injure the polyurethane industry, and do not hinder the promotion of building energy conservation and emission reduction." Gan Yongqin believes that the current level of A-grade insulation materials, supply and product performance cannot meet the needs of existing projects. Building energy conservation as an important part of energy saving and emission reduction will be seriously affected。

  But at the same time as the industry spoke out, the amazing problems exposed in the construction still gave the polyurethane industry a slap in the face. According to the data provided by the Shandong Provincial Fire Corps, in Shandong Province alone, there were 17 fires caused by building exterior wall insulation materials in 2011, and the direct economic losses amounted to more than 2 billion yuan. Organic insulation materials such as polyurethane keep warm, but they can't prevent fire. Can fire and energy conservation be taken into consideration? Experts and companies。

  According to experts in the air-conditioning and refrigeration market, the extruded board that meets the standard is more than twice as high as the flammable price, which will greatly increase the project cost. In addition to extruded sheets, polyurethane is now commonly used. Polyurethane has better insulation performance and higher price, but ordinary polyurethane is more flammable than extruded board.。

  Insulation materials must be checked and accepted from the production to the use, then how are these flammable insulation materials that do not meet the national standards? The insulation materials must first pass the inspection of the quality inspection station. The samples sent for inspection were never sloppy. However, with the detection of flame retardant, it is flammable when it is used for construction. This raccoon-for-prince game is already commonplace in the industry. In this way, unqualified insulation materials entered the site smoothly. During the construction process, the construction party and the insulation material production enterprises work closely together to make a surface article. In this way, a piece of flammable insulation board is attached to the outer wall of our side, laying a safety hazard.。

  On December 14, 2011, Hu Xiaoyuan, Secretary General of China Thermal Insulation and Energy Conservation Materials Association, put forward the idea of “increasing the proportion of application of fireproof insulation materials is a development trend” at the annual meeting of China Thermal Insulation Materials Association. At the annual meeting, Director Gao Ping of the Materials Department of the Ministry of Industry and Information Technology pointed out in his report that there are 208 enterprises in the rock wool industry and 1.8 million tons of production capacity. Currently, it is very hot, attracting many enterprises to enter. It is expected that hundreds of production lines will be put into operation next year. Therefore, we must strengthen regulations and promote more rational and healthy development of the industry.。

  On December 29, 2011, the enlarged meeting of the Party Committee of the Fire Department of the Ministry of Public Security once again stressed that it is necessary to seek breakthroughs in the renovation of building exterior wall insulation materials, and continue to strengthen the special fire protection of building exterior wall insulation materials. Before the introduction of the national standard, the fire department of the Ministry of Public Security must strictly examine the fire performance of building exterior wall insulation materials and strictly limit the use of combustible materials. This is based on the fact that the Public Security Fire Bureau clearly stipulates in the “No. 65 Document” that “Building insulation materials will use Class A fireproof materials (incombustible materials)”, and once again clearly reiterated that the exterior wall insulation materials in the field of building energy conservation must be strictly regulated. Can't relax。

  Du Lanping, chief engineer of the Fire Department of the Ministry of Public Security, said: "The external wall insulation system for building energy conservation needs to be upgraded to Class A fireproof materials, which is a fundamental issue in China's construction safety. Our attitude is very clear. If we relax the standard, it is difficult to burn, flammable, The definition of flammability is rather vague, and it is easy to be greatly reduced in implementation.” The senior officials of the Fire Department of the Ministry of Public Security said that setting strict standards allows the industry to think about how to develop in the future. The policy document of thermal insulation materials can also promote the scientific upgrading of the industry. In line with the needs of enterprises, the road to transformation will become more difficult in the future.。