This practice, also known as acoustic insulation, involves insulation work on around sound sources which above theshold (80 dB) that can harm human health.
The most common methods are as follows:
a) Insulation is perform by leaving an air gap between the mineral wool applied to surface and the cladding material. The cladding materials should be fixed on the feet with vibration-proof structure.
b) The composite sound insulation sheet is (first layer) wrapped on the surface. The rockwool is assembled over the sound insulation sheet than as in the third layer is assembled bitume covering. And ultimately cladding material is applied. Also if necessary cladding support anti-vibration feet to be fixed on the surface under the cladding.
c) The condition where cladding is not suitable, the sound sources are enclosed in the sound insulation cabin in various sizes. The cabins consist of composite panels containing mineral wool, also protect the equipment against atmospherec conditions.