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Fiber Glass Wool For Building Use


Fiber Glass Wool for building use

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In the construction of centrifugal glass wool, the surface is often attached with a certain sound-permeable finish, such as plastic film less than 0.5mm, metal mesh, window screen, fireproof cloth, glass cloth, etc., can basically maintain the original sound absorption characteristics. Centrifugal glass wool has excellent properties such as fireproofing, heat preservation and easy cutting. It is one of the most commonly used materials for building sound absorption. However, since the surface of the centrifugal glass wool is not decorative, and there is a fiber sprinkling, it is necessary to make various sound absorbing members concealed. The most commonly used and lowest cost construction is the ceiling of a perforated gypsum board or a perforated panel wall filled with centrifugal glass wool. When the perforation rate is greater than 20%, the sound absorption performance of the centrifugal glass wool can be fully utilized. . In order to prevent the glass wool fiber from spilling out, it is necessary to attach a layer of a sound-permeable fabric such as a non-woven fabric or a mulberry paper to the back of the perforated plate, or to wrap the glass wool with a glass cloth, a plastic film or the like. Panels similar to perforated gypsum board are perforated metal sheets (such as aluminum sheets), perforated boards, perforated fiber cement boards, perforated mineral wool boards, and the like.


The glass wool board can be processed into a sound absorbing ceiling board or a sound absorbing wall board. Generally, 80-120kg/m3 glass wool board is cured by glue curing, and the fire-proof sound-permeable fabric is formed to form a sound-absorbing wall board which is both beautiful and convenient to install. The common size is 1.2m×1.2m, 1.2m×0.6m, 0.6 m × 0.6 m, thickness 2.5 cm or 5 cm. There is also a sound absorbing ceiling plate formed by directly spraying a sound-permeable decorative material on the surface of the glass wool of 110 Kg/m3. Whether it is a glass wool sound absorbing wall panel or a sound absorbing ceiling panel, it is necessary to use a high bulk glass wool and a certain strengthening treatment to prevent the sheet from being deformed or too soft. This type of building material has good decorative properties and retains the good sound absorption characteristics of centrifugal glass wool. The noise reduction coefficient NRC can generally reach above 0.85.

In a large space such as a gymnasium or a workshop, in order to absorb noise and reduce noise, a sound absorbing body using centrifugal glass wool as a 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.


In the road sound insulation barrier, in order to prevent noise reflection, it is necessary to take sound absorption measures on the side facing the vehicle, and often also use centrifugal glass wool as a filling material and a barrier plate whose surface layer is a perforated metal plate. In order to prevent the glass wool from absorbing water and moisture outside, it is sometimes wrapped with PVC or plastic film.

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