国产a一级视频播放_日韩国产一级毛片_都市激情 在线 亚洲 国产_泰洋川禾香蕉视频小黄片_成人快色视频在线观看_给我脱腿张开抽插_蜜臀av网站在线_亚洲无码不卡宅男_亚洲欧美综合中文字幕另类免费最新国产_无码日韩手机观看网站

When the temperature of extruded board exceeds 200℃, the insulation material must have appropriate external protection so that possible expansion will not change the thickness and bulk density. For the insulation of extruded board of large diameter or flat wall equipment, insulation nails should be added when the temperature exceeds 200℃, and the external protection (spacing 400mm) should be close.

In addition to the convenience of installation, it also has the function of fire prevention. Such materials installed on the exterior wall can solve many problems. As a user, how to choose to use reliable products has become a very important thing. Exterior wall extruded board is one of the standard materials. Before construction, according to the requirements of the design and this procedure and relevant technical standards, a special construction plan for energy conservation and insulation of this project is prepared, and technical disclosure and professional technical training are carried out for construction personnel. If the extruded board material is used in double layers, it will undoubtedly increase the performance of the material. The price of rock wool for interior walls is cheaper than that for exterior walls, because non-waterproof materials can be used indoors, and there is no corrosion from sunlight and rain indoors.

When the thickness of other extruded boards reaches 150mm, if you want to reduce the heat transfer index of 0.1W (m2.K), you have to add 110mm thick insulation boards, which is very expensive. The results of thermal insulation and energy saving and the level of construction technology are very unsatisfactory. There are still some problems with the quality of a small number of produced exterior wall insulation extruded boards. However, good rock wool fibers are thin and soft, and the slag ball content is low.

It is necessary to distinguish that good quality extruded board materials have the characteristics of low thermal conductivity, heat absorption and long service life. In this way, you can ensure that you can distinguish the quality when choosing, and secondly, you can choose the type of material according to your own use.