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Sound Comfort Are you exposed to dangerous levels of noise? |
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Noise, which is often referred to as unwanted sound, is typically characterised by the intensity, frequency, periodicity (continuous or intermittent) and duration of sound. Sound is the result of pressure changes in the air caused by vibration. Unwanted sound to some may be considered wanted sound by others, as in the case of loud music. More people are affected by noise exposure than any other environmental stressor. However, because its associated health effects are not as life-threatening as those for air, water and hazardous waste, noise has been on the bottom of most environmental priority lists. More recently, research has focused on noise as an auditory stressor that can produce both direct and indirect health effects. The direct health effect known to be attributable to noise is hearing loss (resulting from damage to the inner hair cells of the organ of corti) with noise exposure higher than 90 decibels. There are several non-auditory physiological effects of noise exposure including a possible increase in cardiovascular disease from elevated blood pressure and physiological reactions involving the cardiovascular endocrine system. In addition, community noise has been shown to adversely affect sleep, communication, performance and behaviour, reading and memory acquisition, and mental health. |
| How Loud is Too Loud? Noise-induced Hearing Damage is Related to the Duration and Volume of Exposure Protection from noise contributes towards the quality of life and a healthy, productive and attractive environment in offices, hospitals, schools and buildings. By far the most effective, durable and economical method for controlling noise is to install glass mineral wool products in an area where noise control is required. Be it cinema, auditorium, meeting room or office, glass mineral wool could be applied on ceiling or wall to reduce the sound reverberation and noise. In addition, when installed in wall cavity, sound transmission from one room to another could be reduced significantly.  Buildings need to be incorporated with noise control measures covering both sound insulation and sound absorption not only to meet building regulation requirements, but also health and safety regulations. The sound absorption characteristics of glass mineral wool make it ideal for acoustic treatment to comply with sound insulation regulation requirements. PGF Insulation glass mineral wool has excellent acoustic absorption characteristics. It is use in carefully specified constructions with good detailing to contribute towards a conducive environment. Key reasons for the use of these products are:
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