If I use noise insulation in an engine room, how many DB can I then expect to reduce?
In order to reduce the DB in e.g. an engine room there is actually not a very exact clear answer. The solution always depends on what type of noise to reduce, and which sound insulation- or absorbing materials to use.
Factors as air gaps, resonance sounds, and different vibrations have a great influence on the experienced soundproofing.
We would like to discuss your sound problem, after which we can advice you, which type of materials and solutions should be suited to solve your problem.
What type of foam insulation is the best to use in my cabin?
It depends in any cases of what type of noise to be reduced, for example whether it is high- or low frequency noise, or if the noise is infiltrated with vibrations and resonance etc.
If you want to create the optimum cabin comfort, typically two materials (layers) are mounted.
- a heavy foil is mounted directly on the metal surface, which eliminates vibrations and structural noise.
- as a lining material, a good sound absorber is used, typically a B028 PU foam, with an adequate surface, foil or textile.
What type of foam is the best to use, when I need to embed the noise?
A lot of production equipment is noisier than the allowable, and then an acoustic control of the room is not sufficient. Often you have to embed the noise.
The embedding of noise is typically needed in connection with e.g. a generator, a CNC machine or other production equipment.
The sound insulating material, which is recommended is e.g. a bonded foam, which has a density of 130 kg/m3.
If a material, which is moisture- or oil-repellent, is needed, we will typically recommend a bonded foam attached to a thin foil, which is easy to wipe of and which keeps the foam core dry.