North Gate area asphalt shingle manufacturers, Wenfeng District shingles sales, wholesale glass tile Yindu District, Long An area asphalt tile factory, Linzhou Anyang County shingles wholesale, ShangYinXian (county towns) Huaxian (Road Town ) Neihuang where to sell asphalt shingles before, in charge of drafting the standard building materials industry and technical supervision research center, China Building Materials Academy Suzhou waterproof Institute, China Building Waterproofing Association, was held in Ningbo, Zhejiang Province, "" fiberglass tire asphalt Watts' experience in the implementation of national standards cum production, application and research seminars. " At the meeting, Zhejiang Waterproof Building Materials Industry Association, the anti-group, the United States Owens Corning, Tianjin Yu Hung, Hangzhou race Teng, Ningbo Cod, built in Beijing Friends of the region and the company reported production and promotion of asphalt shingles performance, reflecting the production and use of the existing problems, the standard revision made some comments and suggestions. Jiang Yin Cailin sand Products Co., Ltd., Zhenjiang welcome sand plant introduces the development, production and promotion of scientific research sand. At the meeting, delegates exchange, summed up the implementing since February 1, 2007 implementation of the GB / T 20474-2006 "fiberglass tire asphalt shingles" national standard achievements, experiences, reflecting the problems found in the implementation of standards, After discussion and exchange of views and reached consensus on a number of proposed amendments to the standard comments and suggestions. Delegates summarized and reviewed the implementation of standards achievements of the past five years: ① fiberglass tire asphalt tile production has been rapid development, increased production enterprises, output is greatly increased. The late 1980s linoleum factory in Tianjin from abroad a bitumen membrane multifunction production lines, capable of producing asphalt shingles, and developed a JC / T 503-1992 "shingles" industry standard, but the yield is very small, limited use of space. GB / T 20474-2006 "after fiberglass tire asphalt shingles" national standards promulgated, Shanghai, Zhejiang, Beijing, Shandong, Liaoning and other provinces, municipalities and waterproof material production enterprises have launched the production of asphalt shingles, production soared. Zhejiang Province alone, more than 10 enterprises producing asphalt shingles, the annual output of 15 million square meters, accounting for about one-third of national output. ② inclusive national standards in Europe and America are two asphalt shingle system, eliminate technical barriers, speeding up the foreign advanced technology and products into China even faster. United States Owens Corning, Italy Tegola, Canada IKO and other products into the country, to improve the asphalt tile production equipment and products to play an exemplary role in our country. ③ developed a JC / T 1071-2008 "asphalt shingle with sand," the industry standard, so that sand with a unified national quality inspection and evaluation standards, sintered sand to replace the stained sand, asphalt shingles to improve the anti-aging properties, extended service life. ④ into the asphalt Vannes GB 50693-2011 "pitched roof engineering and technical specifications", in favor of the selection and accurate design and construction products. ⑤ asphalt shingles widening the scope of use, from residential buildings for the city's "flat slope" to promote the use of the residential quarters, luxury apartments, villas and commercial buildings and other civil construction. Use area popularized by Shanghai, Jiangsu, Zhejiang, Shandong, Liaoning and other coastal areas to Heilongjiang, Xinjiang and other cold and dry climate area. Type ⑥ asphalt shingles increased. Only the original production of flat tiles, and now some plants have been able to produce a laminate tile. Tile dimensions and color to diversification, to meet the needs of different regions and different roofing. ⑦ introduction, digestion and absorption of foreign advanced technology, independent research and development of improved asphalt tile production technology and production equipment, and obtained a patent. Our own design, production of asphalt tile production line has been exported abroad. At the meeting, representatives also reflects the production and application of asphalt shingles in current issues: ① asphalt shingle industry concentration is low, small production scale, low production, product variety, production equipment life and there is a big gap compared with foreign countries . ② price competition in the market, shoddy, shoddy counterfeit goods are still a considerable market share. ③ poor performance adhesive strip some of their products, reach the wind exposing performance requirements. ④ there are some companies adopt compound tires, staining sand and recycled asphalt shingles asphalt production, product quality does not meet standards, serious damage to the product credibility. ⑤ use of asphalt shingles asphalt prices soared, so that the production of asphalt shingles qualified enterprises no longer profit at all. At the meeting, representatives agreed that: fiberglass tire asphalt shingles is a new type of roofing material both waterproof and decorative dual function, as compared with sintering clay tile, concrete tile, energy and land, and has broad prospects for development. GB / T 20474-2006 "fiberglass tire asphalt shingles" national standards, promulgation and implementation of asphalt shingles on the development of the industry and promote the use of making a positive contribution. The standard adopts the foreign advanced standards, basically in line with China's national conditions. But the implementation of the past five years, some of the content standards needs further investigation and conduct research trials, consensus or revised. At the meeting, the representative of the problems reflect the standards and amendments to proposals grouped into five aspects: ① thickness of asphalt shingles. In order to ensure the life of asphalt shingles, should increase the thickness of the tile; asphalt shingles or the useful life of different provisions of different thickness, or the thickness of the classification. ② solubles content. One view is to ensure that the service life of asphalt shingles and waterproof performance, should increase the soluble content; a second opinion is to adapt asphalt Waxia construction season, reducing asphalt spill, meet fire safety requirements, should be adapted to reduce the soluble content ; ③ flexibility. For use in cold regions of asphalt shingles provisions corresponding low temperature flexibility. ④ impermeability. Asphalt tile roof is structural waterproofing, roofing not water that this index is not necessary to set up, increase water absorption index, and that the production process of sand asphalt shingles over the pressure, damage the tire group, this metric can be used to control. ⑤ additional fire resistance of asphalt shingles. Are ⑥ asphalt shingles wind expose performance can be graded to meet the needs of different regions. ⑦ appropriate increase in tension, using 95g / m2 padding, tension can be increased, but little change in production costs. The meeting recommended that: standard charge of drafting the advice of delegates will organize, to higher standardized project management application, the GB / T 20474-2006 "fiberglass tire asphalt shingles of" national standards included in the revised plan.