How to soundproof a wallDecember 25, 2013
Those who live in apartment buildings know what audibility is in the house, and if a family with children lives on top or the neighbors decide to start repairs, then the quiet life has come to an end. You can fundamentally solve the problem by buying a private house in the woods or some other quiet place, but there are more affordable ways to protect yourself from extraneous sounds from your neighbors.
At the moment, the situation on the market of soundproofing materials is ambiguous. Many construction companies are positioning their materials as solving the problem of extraneous sounds, but by and large they are heat-insulating or waterproofing. That is why the choice of sound-proof material must be carefully and deliberately.
All sound insulation materials existing nowadays can be divided into several groups.
The most extensively represented on the market of building materials are foamed materials based on polyethylene, polyurethane, melamine and synthetic rubber. They can be sheet or roll.Many know such names as Penoterm, Stenofon, Penofon, Izolon, Penofol, Unipor, Penoplex, Polyurethane foam (PUF) and other similar materials.
Usually foaming of these materials is provided by extrusion of the main ingredient. Such materials are inexpensive and are sold in any construction store, so they are often used as interlayers in multilayer structures and substrates. You can also use them as vibration damping pads - in the case of communication or any vibration equipment is in contact with other structures.
The closed porous structure of such materials excludes their use as sound-absorbing lining materials, with the exception of special products with a volumetric wavy or pyramidal shape - MAP (Italy) or ILLBRUCK (Germany).
It is best to use them as part of lightly loaded structures, for example, in “floating floors”, because they isolate from structural (impact) noise, and neighbors below - from the sounds of mechanical impacts on your floor (for example, walking in heels). At the same time, such materials do not protect against airborne noise penetrating through walls and ceilings; therefore, only barking dogs, voices and music from their neighbors will not solve their problem.
Fiberglass and cork materials
Many sheet and roll soundproofing materials are made of fiberglass and cork.
Cork with an equal thickness has better insulation insulation of the shock type than the above described foam materials. And fiberglass materials (ThermoZvukoIzol, Shumanet-100, Isofon) have a large modulus of dynamic elasticity.
In terms of their use, fiberglass materials and cork should also be used as part of laminated structures or as gaskets.
Sound absorbing materials
Usually sound-absorbing materials are made of fiberglass and basalt fiber. Among the most frequently encountered brands include Basaltin, Shumanet-BM and Shumastop plates, Rockwool Light Butts, Isover KL and CT, ISOLIGHT-L, Ursa M and P, and others. These materials are considered one of the best in the field of absorption of medium and high frequencies.
It is best of all to use such materials as a part of multilayered structures - not loaded partitions, frame-monolithic constructions, etc.
One of the most effective methods of sound insulation is a multi-layer construction of several layers of alternating hard and soft building materials.For the hard layer is usually used dense materials such as bud, brick or drywall.
The greater the density of the material, the higher the sound insulation. And for the soft layer is usually used materials with a fibrous structure like mineral wool, glass wool, silica fibers. The thickness of the sound-absorbing material should not be less than 50% of the internal space of the partition.
Finished soundproofing designs
These products appeared on our market relatively recently, but have already gained great popularity due to their effectiveness. Such designs allow you to isolate the room from any noise, even in production conditions.
It can be multi-layer vibration-acoustic panels, soundproofing panels, plates of additional insulation, sandwich panels, etc. Let us consider in more detail some types of such structures.
- Sound insulation systems ZIPPS. Such constructions consist of sandwich panels and sheets of drywall, in which layers of mineral wool or fiberglass and gypsum fiber alternate. The thickness varies in the range of 40-130 mm, and the dimensions are 500x1500 mm. Noise absorption - from 10 dB.These panels are attached to the walls, floor or ceiling on special structural units through sound insulation strips.
- KRAFT wall panels. They are made of eco-friendly fiberboard, glued on one side with corrugated cardboard, and on the other side with waxed paper. They are attached to the wall by gluing. The thickness of 12 mm, dimensions 2700 x 580 mm, Rw - 23 dB.
- Panels EcoZvukoIzol. Made of quartz sand and a seven-layer cardboard profile. Such plates are easily sawn with jigsaws, and are attached to the wall by gluing. Thickness is 13 mm, the sizes are 1200 x 800 mm and 1200 x 450 mm
- Heat, sound insulation boards ISOPLAAT. For the manufacture of environmentally friendly fibers used conifers. These designs are well breathable and fit all types of finishing.