Acoustic Mineral Wool

Acoustic Mineral Wool is another essential product in construction, it is used for treating cavities in floors, walls and ceilings, and is popular for its thermal and acoustic qualities. The reason these are ‘acoustic’ or sit in the soundproofing categories is their density, essentially how ‘heavy’ they are. Thermal rolls are often lower in density, you may see a 10kg per m3 that would have little effect on providing the best sound reduction. Anything less than 45kg we would recommend upgrading due to its weaker acoustic performance. At iKoustic we supply a range of Acoustic Mineral Wool options and have access to non-stocked options, these are included below.

Acoustic Mineral Wool is lightweight, its most outstanding qualities is its ability to absorb noise in cavities effectively, it also assists in reducing flanking in areas where the sound is taking an alternative path between flooring joists and stud frames. When noise issues are increased beyond background noise, we combine Acoustic Mineral Wool with our soundproofing systems so that we can manage noise that covers even the most stubborn sounds! There are other essential principles for getting the best soundproofing possible.

Acoustic Mineral Wool FAQ

Getting the right acoustic underlay is dependent on your specific needs. Some underfloor joists are typically soundproofed as part of a 60kg per meter cubed mineral wool that performs excellently as soundproofing insulation. It comes in various thicknesses and can be cut to size. Acoustic mineral wool like Rockwool RW3 or Knauf RS60 can be friction fitted in wall and floor cavities creating a great soundproofing barrier.

Yes. most forms of Rockwool will offer some sound insulating properties but if soundproofing is a priority it’s advised to use acoustic Rockwool. This is Rockwool with a weight of 45 KG per cubic meter and above.

Acoustic Rockwool is a fantastic low-cost upgrade to most soundproofing systems and would even have a noticeable effect on airborne sound on its own. Filling cavities with acoustic Rockwool prevents them from acting as a hollow drum amplifying sound.

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