Condensation Control Diagnosis & Solutions

Air contains water vapour in varying quantities and the amount it holds depends upon the temperature of the air. Warm air has a far greater capacity for holding moisture than colder air. When warm air, containing high levels of moisture, comes into contact with colder air, or colder surfaces, it cools and loses its ability to hold the moisture. The result is condensation.
In the UK, condensation is mainly a problem of the winter months, with warm air in centrally heated houses coming into contact wth cold surfaces (such as windows and tiles) or colder parts of the house. It is surprising how much moisture is generated on a daily basis just by ordinary household activities. Washing and cooking will produce 8-10 litres of water and a single person will expel over a litre of water just breathing!

Condensation Solutions

Positive Pressure Ventilation – Our Anti-Condensation unit circulates fresh air throughout the property reducing humidity levels and also helps reduce and maintain Radon gas where levels have been detected up to 700 Bq/m3.

Passive Air Vents – Passyfier vents are non-mechanical vents operating continuously without noise extracting up to 2.3 litres of water per day.

Humidistat Extractor Fans – For high humidity situations in kitchens, bathrooms and utility rooms providing quick evacuation of moisture laden air.

Simple recommendations to the home occupier on Condensation Control.

More information on condensation solutions

  • Passifier Vents

    Background Information
    Nowadays, everyone is more aware of the need to conserve energy. The easiest way to conserve energy is to insulate properties to stop heat escaping. Unfortunately, that also stops moisture vapour escaping, resulting in condensation on cold surfaces. Subsequently the black spot mould resulting from condensation can lead to deterioration of internal decorations, soft furnishings, etc.

    What is a Passyfier Vent?
    The Passyfier vent is a through-the-wall telescopic sleeve containing a slab of mineral wool, with a louvered vent internally and an external cover available in various colours to match the external decor of the property.
    Passyfier Vents take advantage of the differential partial moisture vapour pressure that is normally higher inside an occupied building than on the outside during the condensation season. The moisture vapour escapes by diffusion through the Passyfier Vent through the mineral wool whilst simultaneously preventing cold draughts.
    This diffusion process is slow compared with mechanical ventilation and would not cope with a large amount of water vapour produced in a short time scale, ie in kitchens or bathrooms, without the use of mechanical ventilation.

    Fitted mainly in habitable rooms, the Passyfier Vent will operate continuously, without noise, 24 hours per day extracting up to 2.3 litres of water per day and therefore preventing the build up of condensation. All of this with little or no heat loss and because they are non-mechanical, once installed, they cost nothing to run.
    We can supply and fit these units.

  • Anti-condensation unit ( PIV )

    The Anti-Condensation Whole Home Ventilation and Positive Pressure Ventilation Systems.

    The Anti – Condensation Unit is designed to help banish condensation and damp stale air within the home by drawing in fresh air and introducing it into the property.

    Why Install This Unit?

    The installation of a Positive Pressure Ventilation System is also effective in reducing and maintaining radon levels within the home where levels have been detected up to 700 Bq/m3.

    Lack of adequate ventilation and modern-day living can lead to a higher amount of humidity within the home and therefore causing the unsightly black mould associated with condensation. This black mould produces spores which can pose a serious health threat to those who suffer from asthma and breathing problems.

    How It Works:

    • It controls condensation, mildew, mould and dampness, therefore, reducing the need to redecorate.
    • Promotes a healthier home by creating a fresher, cleaner environment.
    • Has low running costs and is energy efficient.
    • Is whisper quiet and needs minimal maintenance.
    • Helps reduce and maintain radon gas where levels have been detected up to 700 Bq/m3.

    Available with an optional heater facility to provide additional heat to the incoming air if required.

    This system ventilates the home by drawing in fresh air from outside and blowing it indoors. Available in either loft or wall-mountable design.

    We can supply and fit these units.