There are two main reasons why people soundproof their homes, to either keep noise from going out or to keep noise from getting in. if you by any chance live near an airport, you may be forced to put in some soundproof to avoid being woken up every time there is a takeoff or landing. If you are an upcoming musician, you may be keen on soundproofing your room so that you don’t disturb your neighbors.
There are basically two kinds of sound problems: the first one is acoustical, this is basically airborne noise, sound reverberates in the room. The second sound problem is impact sound, the sound is vibratory and travels through a medium such as the wall or wood etc. Depending on the noise you are soundproofing and where the noise is emanating from, there are several types of soundproofing materials which one can use.
One of the main soundproofing materials is Mass Loaded Vinyl (MLV). This is a popular material and is sold under different brand names. It is basically vinyl rubber which has been made heavier by loading it with barium. They usually work by making the walls much heavier and therefore increasing the soundproofing of the walls. If used on a wall, this application will typically yield an additional four to six STC points to a wall.
Another good soundproofing material many people use is insulation. If sound is leaking out or in because of cavities in the walls then using pink insulation, this is usually ideal for soundproofing ceilings and walls. Most insulation is made from natural, moisture and resistant material that are known as rockwool or mineral wool.
Lead lined sheet rock is also another soundproofing material which people use. This basically refers to sheetrock which has a lead lining which helps in the reduction of noise. When using this type of material, it is highly recommended that you use products which have at least 1/8 inch sheet of lead metal for best results. They are excellent noise reducers even though their prices are a bit steep.
There are also other soundproofing which come as sealants. They are usually sold or packaged in caulking style dispensing tubes. This makes it extremely easy to apply in any project you may be undertaking. When the sealant is applied between layers of drywall, it has been known to dissipate any sound vibration which passes through the floor and walls. They are ideal for sealing holes, open spaces like around screw holes, fixtures and electrical boxes. Most of the times, these spaces around the walls and floors do end up being the weakest link in your soundproofing endeavors: in the process negating all your undertakings.