Semi Accoustic Double Face Ventilation When we block noise from our business or homes, we usually also reduce ventilation, or use noisy air conditioning units to circulate air. The air can become ‘stale’, leading to a build-up of moisture and the growth of unhealthy mould and bacteria. Toxic fumes, given off by modern furnishings and paints, can also accumulate without adequate ventilation.
Yara products are ‘passive acoustic ventilators’ suitable for commercial or residential buildings. ‘Passive’ refers to the fact that they need no energy to operate. Special arrangements of devices called ‘acoustic attenuators’ allow air to pass freely, but channel and redirect sound waves in such a way that the waves cancel themselves out, significantly reducing the passage of noise. Double faced construction means that the Ventilation panels look stylish from both sides and can be used between room spaces to allow ventilation yet reduce noise.
All that is required for passive ventilation is a difference in air pressure between the outside and inside of the building. A simple breeze is usually enough to create this differential, however, exhaust fans or passive thermal chimneys will also help to draw air through.
If there is no air moving through the vent noise will be reduced however, the noise reducing properties actually improve as the volume of air moving through the vent increases.
In extremely windy or cold conditions, the vent can be closed. These vents can also be automatically shut down in case of fire slowing down the progress of flames through a structure.
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