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

Advantages of extruded board for exterior wall insulation: It has a dense surface layer and a closed-cell structure inner layer, and has good thermal insulation performance. It can maintain good thermal insulation performance even in a humid environment. It is light in texture and easy to use, and is generally used for the exterior walls of buildings.

The reasonable use of extruded board can make the size stable. Many people think that if extruded board is used for wall insulation, its size stability will be poor. In fact, compared with XPS, its restraint effect is better, and many engineering examples have also confirmed this effect. During the use process, it has a variety of properties such as high pressure resistance, light weight, non-absorbent, and airtightness, and when in use, it has great advantages in strength, thermal insulation, and resistance to water vapor penetration. Because of this, it has always been loved by people.

During the use of the extruded board of the external wall insulation material, it has the characteristics of high thermal resistance, low linearity and low expansion ratio. The air filter of this board can be up to 99% or more, avoiding air flow heat dissipation, ensuring the durability and stability of its insulation function, which is equivalent to the 80% closed-cell rate of foamed polyurethane. This product is relatively light and easy to use, and it has a closed-cell foaming chemical structure and a honeycomb physical structure, so there is no need to worry about it being damaged during transportation.