Thermal and acoustic insulation

GLASS FIBER INSULATION

Glass mineral wool, also known as fiberglass, with rock mineral wool are materials used for thermal and acoustic insulation in construction and thermal rehabilitation of a condominium and housing. Sometimes doubt is which of them, fiberglass or mineral wool is the most suitable.

While both lafibra glass and mineral wool are very similar in performance, there are small differences that support the use of glass fibers as a material of thermal and acoustic insulation in construction.
Differences due mainly to the manufacturing process of both types of mineral wool.

Melting silica sand shaped with a series of fluxes and stabilizing materials and a mixture of finely ground calcium results in a felt consisting of glass wool fibers interwoven fine to prevent the passage of air and flow waves caloric, which gives the glass fibers a high coefficient of thermal resistance. This coefficient depends on two key factors: coefficient of thermal conductivity of the material and its thickness.

Compared to rock mineral wool, glass fibers have greater insulating performance because, for equal densities fiberglass and rock wool, the thermal conductivity of the glass fiber it is lower.

Moreover, the glass fibers have a high absorption capacity Aislamiento Térmico noise damping to the total dissipation lleegar thereof. The sound absorption coefficient varies largely depending on the thickness of the material ranges from 0 (highly reflective materials) and 1 (highly absorbent materials) and is somewhat higher for glass fibers.

From the above it follows that under equal technical conditions glass wool are more profitable and economical. Other important aspects to consider are: ease of transport, handling and installation, adaptability to multiple surfaces and fire resistance (high in mineral rock wool).

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