In recent years, there have been more and more construction projects at home and abroad, and a large number of new building materials and glass wool felts have been used in construction. Solid bricks have been generally replaced by hollow blocks and perforated bricks. In the wall of hollow blocks, in order to improve the insulation performance of the walls, the airflow of the hollow channels formed between the blocks is blocked, and the gaps are filled in the gaps. Loosely filled insulating glass wool with expanded perlite, loose glass wool or loose mineral wool.
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Glass wool felt is a category of glass fiber and is an artificial inorganic fiber. Glass wool is a material in which molten glass is fiberized to form a cotton-like material, and the chemical component is a glass type, and is an inorganic fiber. It has good forming, small bulk density, thermal conductivity, thermal insulation, good sound absorption, corrosion resistance and stable chemical properties. It is mainly used in large spaces such as gymnasiums and workshops. In order to absorb noise and reduce noise, a sound absorbing body using centrifugal glass wool as the main sound absorbing material is often used. The sound absorbing body can be made into a plate shape, a column shape, a cone or other shaped body as required. The sound absorbing body is filled with centrifugal glass wool, and the surface is wrapped with a sound-permeable surface layer. Since the sound absorbing body has a plurality of surface sound absorbing sounds, the sound absorbing efficiency is high. Domestic civil buildings generally use more spires. In the attic space of the spires, there are channels for air circulation under the roof, which can not only solve the air circulation, but also play a certain role in thermal insulation.
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