Separating floors

Mineral wool products offer substantial advantages when used as both sound absorbent and resilient layers in floors that are required to provide sound insulation.

Mineral wool provides an alternative method of controlling airborne sound transmission through a floor as opposed to simply increasing the mass. The sound reduction performance of floors can be greatly increased by installing a layer of glass or rock mineral wool in floor voids to absorb energy from airborne sound waves.

A secondary benefit of glass or rock mineral wool is to provide thermal separation between floors so that dwellings can be zoned independently for heating.

When used as a resilient layer to isolate the floor surface from the structural deck, appropriate rock mineral wool products will substantially reduce the transmission of impact sound through a structure.

The sound absorption characteristics of mineral wool make it ideal for use in modern buildings to comply with Approved Document E of the Building Regulations in England and Wales, Technical Handbook, Section 5 for Scotland and Technical booklets G and G1 for Northern Ireland. In addition, the thermal properties of mineral wool provide a secondary benefit of minimising heat loss, either between attached dwellings or between storeys within a dwelling. A further benefit is to minimise the overall mass of the construction, easing construction processes.

Earthwool Acoustic Roll is made from glass mineral wool and formed into rolls which are lightweight, flexible, resilient and non-combustible. The product’s density meets the appropriate requirements of several Robust Details.

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