42
feature
heating, ventilation & damp proofi ng
apartment. They ensure that a continuous supply of air is supplied into the home to eliminate or signifi cantly reduce condensation. PIV systems are also energy effi cient as they use low-power fans
to maintain airfl ow, with many systems designed to meet energy performance standards for Sustainable Products Regulation. Performance and compliance Selecting the right energy-effi cient ventilation system involves careful consideration to ensure optimal performance and compliance with Building Regulations. Firstly, the building’s design and layout of the home play a crucial role in determining the most suitable ventilation system. Factors such as the size of the property, the number of rooms and the presence of wet areas should all be taken into account. This is also particularly important when it comes to compliance with Approved Document O, as the orientation, shading and material usage can have a signifi cant impact on overheating and user comfort if not eff ectively planned out. This can lead to more work and cost being required further on in the project. Ventilation systems must comply with the latest building
regulations Approved Document F and have been tested for performance. Higher effi ciency ratings often translate to lower energy consumption and cost savings over time. In terms of budget, investing in a high-quality, energy-effi cient
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periods, which prevents overheating, therefore helping to stay compliant with Approved Document O. Mechanical Extract Ventilation (MEV) MEV systems are designed to extract air from specifi c areas of the home, such as kitchens and bathrooms, where humidity is at its highest. These systems can be either centralised or decentralised, depending on the layout of the property. MEV systems off er adjustable fan speeds, which allow for optimisation based on occupancy or room usage. Popular in smaller homes, MEV systems also off er minimal energy consumption compared to traditional systems. Positive Input Ventilation (PIV) Positive Input Ventilation (PIV) systems create healthy living environments by supplying fresh, fi ltered air throughout a property at a continuous rate. A popular method of whole house ventilation, they work by drawing in fresh, fi ltered air from outside. These can be either installed in a loft space or on a wall in a fl at or
system can lead to signifi cant savings in the long run, especially when you take into account ongoing maintenance and energy consumption. Check out manufacturer warranties and their support service contracts in case of any issues. It is also worth considering that homes that are equipped with energy-effi cient features, including advanced low carbon ventilation systems, which make them more attractive to potential buyers. Energy effi cient ventilation systems The importance of selecting energy-effi cient ventilation solutions for homes cannot be under estimated. The updated Approved Document F and Future Homes Standard (FHS) demand ever higher whole-house ventilation rates and increased airtightness in new homes to reduce carbon emissions. This means that traditional methods like natural ventilation using intermittent fans and trickle vents are inadequate for meeting the new regulations. This can be achieved through a ‘systems approach’ to ventilation, where a continuous fl ow of fresh air and removal of pollutants are essential to maintaining optimal indoor air quality. This is achievable with whole-house ventilation systems, such as MVHR (Mechanical Ventilation with Heat Recovery), MEV (Mechanical Extract Ventilation), dMEV (Decentralised Mechanical Extract Ventilation) and Positive Input Ventilation (PIV). By working closely with ventilation manufacturers from an early stage, housebuilders can make informed decisions that result in greater energy effi ciency, better indoor air quality and sustainable, low carbon homes for the future.
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