Positive Input Ventilation (PIV) Kits (AC Motors)

Positive Input Ventilation (also known as positive pressure ventilation) works as a whole house ventilation system and creates fresh and healthy living environments by supplying fresh, filtered air into a home.

PIV is a highly effective cure for condensation, mould, dampness and its associated problems within residential properties. It pushes harmful air out of the home and replaces it with fresh, filtered air.

PIV works by drawing fresh air in through the unit that’s installed in your roof space. This air is then filtered and gently diffused at ceiling level, creating a positive pressure within the home that forces air pollutants out through the natural leakage gaps in your home.

There are several advantages to this sort of low-pressure ventilation. It ensures a constant flow of fresh, filtered air through your home, regardless of the conditions inside or outside the house.

This can be crucial to prevent the build-up of moisture and associated problems, which can include the growth of mould and damp patches. A damp environment can exacerbate some health problems, such as asthma, can cause damage to your home that is expensive to rectify, and generally create an unpleasant environment.

The pressurised circulation of clean, filtered, air through the house can also help to remove pollutants that enter from elsewhere in the house, as well as dispersing mustiness and odours. A PIV system can lower the humidity in the house, which can also prevent dust mite populations from thriving. This can be another benefit for children and adults in the house who have asthma or allergies.

As warm air rises, roof spaces are often comparatively warm spaces, and as this air is moved by the fresh air coming in, it can have a slight but significant impact on the temperature of the house.