Air quality, and therefore its temperature, humidity and purity are key components for the general wellbeing inside a building. Especially in winter, when the opening of windows for air exchange results in significant heat loss, an integrated ventilation system is the best solution for maintaining thermal performance levels in the building as well as indoor air quality. Recent legislation on energy saving in buildings and new technological achievements in the field of thermal insulation and sealing of windows and doors, have made modern homes more comfortable in terms of heat and sound, but have transformed them into totally-sealed environments, with the risk of turning them into “harmful traps” due to the domestic production of pollution.
The basic principle is to make the building more than just well insulated, but also highly air-tight. An efficient mechanical ventilation system is essential for ensuring adequate change of air and a healthy atmosphere inside the premises. The renewal of air inside rooms is essential for proper sanitation and housing, and even the European Directive 2002/91/EC of the European Parliament and of the Council of 16 December 2002 on the Energy Performance of Buildings cited the “need” for ventilation fans for standard use in buildings.
This “need” conflicts, however, with the shared worldwide need, and included in Italian Law 10/91 and with Legislative Decrees 192/05 and 311/06, to improve the energy performance of buildings in order to limit consumption. Controlled mechanical ventilation with a heat recovery unit from the DRU series is, therefore, an ideal solution for reducing the energy requirements of homes and at the same time improves the health and environmental quality of the air inside.
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