Knowra Glass wool Glass wool Glass wool is a lightweight mat or blanket of fine fibers formed from molten glass. Its porous structure traps air, providing thermal and acoustic insulation, and can also filter particles.
Thermal conductivity : Thermal conductivity measures how readily a material transfers heat. Glass wool insulates because its porous structure limits heat transfer through trapped air.
Soda-lime glass : Soda-lime glass is a common glass made chiefly from silica, soda, and lime. Many glass-wool products use this widely available glass composition.
Building insulation : Building insulation reduces heat flow through walls, roofs, floors, and other parts of a building envelope. Glass wool is widely installed in building cavities and roof spaces to reduce heat loss or gain.
Stone wool : Stone wool is mineral-fiber insulation made by melting and fiberizing rock or slag. It is glass wool's closest insulation counterpart, with different feedstock and product properties.
Occupational exposure : Occupational exposure is contact with physical, chemical, or biological hazards during work. Manufacturing and installing glass wool can expose workers to airborne fibers and dust.
Sound absorption : Sound absorption is the conversion of acoustic energy into heat or other forms rather than reflection. Fibers and pores dissipate sound energy, reducing reflections within insulated spaces.
Borosilicate glass : Borosilicate glass is a silica-based glass containing boron oxide, known for low thermal expansion and chemical durability. Some specialty glass fibers use borosilicate compositions for demanding temperature or chemical conditions.
Acoustic insulation : Acoustic insulation limits sound transmission or reduces sound within a space. Glass wool batts are used in partitions and ceilings to absorb sound and reduce transmission.
Cellulose insulation : Cellulose insulation is building insulation made primarily from processed plant fiber, usually treated with fire retardants. It offers a recycled-fiber alternative to glass wool for building cavities.
Respiratory protection : Respiratory protection uses equipment or controls to reduce inhalation of hazardous airborne substances. Work practices and suitable protection reduce inhalation of dust during cutting and installation.
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