Acoustical Properties | Cellulose Fibre

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ACOUSTICAL PROPERTIES

Cellulose fibre provides excellent sound control and noise suppression.

Sound waves travel throughout the empty cavities in your building and uses these empty spaces to amplify. Using cellulose fibre to fill these cavities effectively reduces areas where sound can travel. There are four performances to consider when measuring the effectiveness: Mass, Damping, Absorption, and Sealing/p>

1
Mass
Cellulose has increased mass per unit thickness
2
Damping
Cellulose Fibre Insulation fills crevices and gaps
3
Absorption
NRC (Noise Reduction Coefficient) of 0.75 at a 25mm thickness
4
Sealing
Seals around pipes, conduit and electrical boxes
How to Measure Acoustical Properties

There are four performances to consider when measuring the effectiveness of sound control and noise suppression.

Mass (Density)
Increased mass per unit thickness of cellulose fibre reduces the transmission of lower octave sounds.
Damping
Naturally becomes a an integral part of a wall, roof or ceiling by filling crevices and gaps, where sound can travel.
Absorption
Consists of porous, interwoven fibres that will absorb high and low frequency sounds within an enclosed wall or ceiling cavity.
Sealing
Completely seals around complex shapes to minimize sound transmission through pipes, conduit and electrical boxes.
Where it is most effective

Some areas where cellulose fibre is effective in minimizing sound could be home theaters, workshops and commercial buildings.

 
Watch Video

Acoustical Properties

This video demonstrates the sound proofing capabilities of cellulose fibre insulation.  CIMA compares the superior acoustical properties of cellulose fibre vs. fibreglass.
How it works

Sounds can travel.

Cellulose fibre insulation does not completely soundproof, however it is an excellent product to use to deaden airborne sounds and impact sounds.

Airborne sounds are sounds carried inside or outside the building, such as loud music or traffic.

Impact sounds are the sounds you hear from your kids upstairs bedroom, as they jump from bed to bed and miss.

More Technical Information
Thermal Resistivity
Cellulose Insulation provides greater energy savings over other products.
Convection Properties
Cellulose fibre, due to its perfect fit and greater density, inhibits air movement.
Acoustical Properties
Superior properties for improving noise suppression in wall, floor or ceiling construction
Moisture Resistance
Cellulose fibre has the unique ability to slowly absorb and dissipate excess moisture.
Fire Resistance
Cellulose fibre will not melt or degrade when exposed to flame or high temperatures.
Borate Additives
Cellulose fibre insulation is treated with a carefully controlled blend of borate powders.