When you are considering whether to add cellulose insulation to your wall space, as well as the insulation benefits of the material, you should also look at its soundproofing qualities. Cellulose insulation is sometimes considered to be a good way of damping down the noise, but there are reasons why it is not the best material for your needs.
Cost of Cellulose Insulation
When you are looking for soundproofing insulation, cellulose is often difficult to use, because it is too expensive. Costs are often prohibitive, and this can make using cellulose as a soundproofing material a bad idea. If your intention is to reduce the amount of noise in the room, then there are other, cheaper possibilities.
Difficult to Install
Cellulose insulation is also very difficult for the amateur to install. Poor or improper installation of the cellulose could mean that it does not properly soundproof the room, and this would defeat the object, as sound would easily penetrate through the cavity. Paying someone to fix the problem would be expensive.
Lack Of Effectiveness
Cellulose insulation can be very effective, but it needs to be installed perfectly, or the soundproofing will not work. Lack of insulation at the wall cavity will still allow sound to pass through.