Ventilation ductwork is just as important for ventilation units as flue gas ductwork is for boilers
As legislation for the energy performance of buildings tightens, developers are required to apply increasingly energy-efficient building technologies, including air tighter building fabrics, better insulation, more efficient building services and renewable energies to achieve the minimum energy performance required by legislation.
Indoor Air Quality (IAQ) in older houses generally depended upon infiltration and airing, but purpose-provided ventilation is now necessary to create and sustain an acceptable IAQ 24/7 in air tight buildings.
There are several ventilation strategies, which can provide such purpose-provided ventilation. Some use natural forces to displace air, others mechanical. In some cases both natural and mechanical. Although the physical properties of the ventilation systems available can vary considerably, they are all designed to extract stale, moist air from wet rooms and/or supply fresh air to the habitable rooms.
As the amount of energy wasted by the transmission of heat or cold energy through external building elements and air infiltration decreases, the proportion of energy used the building services, e.g. ventilation, increases.
Improved technologies, e.g. fans and heat exchanger, and product design have made MEV and MVHR systems some of the most energy-efficient ventilation systems available. As a result, they are being applied in an increasing number of buildings. However, just like the performance of boilers strongly depends on the flue gas ductwork, the performance of CME and HRV units also strongly depends on the ventilation ductwork used to distribute the air.
A poorly designed or installed air distribution system will waste energy through unnecessary pressure loss and air leakage because the ventilation unit will have to work harder to ventilate at the required rates, which may also cause unnecessary noise hindrance.
Ubbink is a specialist in ventilation ductwork and has developed air distribution systems which address the above issues, like air tightness, but are even easier to handle and install than traditional systems. They have the following characteristics:
Lightweight and extremely easy to handle;
Very easy and quick installation;
Air tight mechanical connections, which can be installed in seconds and mean no more tape or sealants;
High and consistent quality of connections;
Easy to commission.
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