How does PIV ventilation work in residential buildings?
The simplest answer is that it extracts existing air predominantly in loft spacers, filters, and then moves the air into the rest of the building to reduce/ remove moisture in the property.
Positive Input Ventilation (PIV) is a whole-home ventilation system that works by gently supplying fresh filtered air into a property. By drawing in air via the loft space or directly from outside (in flats), PIV systems continuously dilute, displace, and replace moisture laden air that builds up in a property. . The filters on each system will remove particles as small as pollen as standard, although higher grade filters are available.
This controlled airflow reduces condensation, minimises the risk of mould growth, and improves indoor air quality, creating a healthier, moisture-free living environment.
What are the main benefits of using a PIV system?
The benefits of using an PIV fan are:
- Condensation and Mould Control: PIV is proven to eliminate condensation issues and prevent mould growth occurring.
- Improved Indoor Air Quality: Filters out external pollutants like pollen and traffic fumes while reducing internal pollutants.
- Energy Efficiency: Many systems utilise the heat already present in loft spaces, reducing energy consumption and lowering heating costs.
- Low Running Costs: Non-heated units can operate for less than 1p a day, making them a cost-effective solution.
- Healthier Living: Creates a dry, allergen-free environment ideal for asthma and allergy sufferers.
- Discreet and Low Maintenance: Installed in lofts or hallways with minimal visual impact and only requiring filter cleaning or replacement every few years.
If you’re reviewing which ventilation system to use, we recommend our PIV range, whether in the loft or wall, for any housing project. If you want confidence that your fan will exceed expectations, performance and utilise the benefits, then Vortice is the right brand for you!
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