Residents in the city and urban areas are constantly bombarded by noise. Over time, those living in noisy environments get used to the noise level, sometimes without realising its serious effects and interference with daily activities at school, work or home and during leisure time.
Noise has been described by the World Health Organisation (WHO) as a pervasive environmental pollutant and a hazard to human health and hearing.
So what are the effects of noise on humans?
The main elements contributing to indoor noise involve both indoor and outdoor noise sources. In the indoor environment, electronic instruments (such as radios and televisions) are the main noise sources, whereas outdoor noise sources involve traffic, industry and other life noises. Since we spend a large part of our time indoors, it is crucial that our buildings and homes are designed and built to reduce noise inside a room, between rooms and from the outside penetrating the building.
In order to achieve good indoor acoustic environment, noise should be reduced to such an extent that it is no longer harmful or interferes with the building occupants’ activities. Mineral wool insulation has air-filled interconnected spaces within its structure which trap air and reduce the noise carrying air flow, thereby reducing the transmission of sound. Mineral wool also acts as a sound absorber. When installed in walls and ceilings, it can reduce the transmission of sound from one room to another or from the outside.