Rockwool Sound Insulation Slab Density

The last page in my second link shows the differences in sound absorption at different frequencies based on thickness and density.

Rockwool sound insulation slab density.

Delivery next day available. It is especially useful when superior fire resistance and acoustical performance are required. Being made from stone rockwool insulation absorbs sound waves and reduces vibration due to its density a non directional fibre orientation and an open porous structure. Fire soundproof insulation.

Rockwool sound insulation slab 100 x 400mm x 1 2m added to my project list. Rockwool sound insulation slab 100 x 400mm x 1 2m. The most familiar rockwool product will be rockwool roll a light density 22 kilogram per cubic metre kg m material used typically for loft insulation. Rockwool safe n sound is a stone wool insulation product for use in interior wall partitions floors and ceilings of residential wood and steel stud construction.

Rockwool insulation is a stone based mineral fiber insulation comprised of basalt rock and recycled slag. Rw3 insulation slabs achieve lambda 0 034 w mk and are available in eight standard thicknesses from 25 100mm with a density of 60 kg m3. Sound insulation slab rockwool sound insulation slab is made from mineral wool insulation with a non directional fibre orientation and high density meaning sound waves are trapped and vibrations dampened. Rwa45 insulation slabs achieve lambda 0 035 w mk and are available in seven standard thicknesses from 25 100mm with a density of 45 kg m3.

At the other end of the density range is a system for cladding buildings using a high density panel rockpanel of compressed rockwool insulation at over 1000 kg m3. Comfortboard 110 is a rigid high density non combustible stone wool insulation board comfortboard 110 is designed for use as an exterior continuous insulation in commercial applications. Rockwool products contain between 16 or 40 pre consumer recycled material dependent on the rockwool manufacturing facility location. The recycled content in mineral wool is derived from the steel slag.

Doubling the thickness results in an almost 400 increase in absorption at 125 hz while doubling the density is only about a 20 50 increase. The acoustic slab also repels water and is vapour permeable resisting rot and mold.