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How PIV Systems can help in old houses suffering with condensation

Tackling Condensation in Older Homes: The Role of PIV Systems
Condensation is a common issue in older houses, often resulting from a combination of age, design,
materials, and modern living practices. While the charm of an older home can never be replaced, the
challenges it faces, particularly with moisture and condensation, can be a significant concern for
homeowners. Fortunately, Positive Input Ventilation (PIV) systems provide an effective solution to
combat this problem, enhancing indoor air quality and preserving the integrity of your home.
Understanding Condensation in Older Homes
Older houses typically have characteristics that can exacerbate condensation issues, including:
 Inefficient Insulation: Older homes often lack the insulation quality of modern builds,
causing walls to retain cold surfaces where moisture can condense.
 Poor Ventilation: Many older properties rely on natural ventilation, which may be
insufficient to manage the moisture generated from everyday activities such as cooking,
bathing, and even breathing.
 Single-glazed Windows: Common in older homes, single-glazed windows can contribute to
thermal bridging, allowing heat to escape and cold air to enter, resulting in condensation.
When warm, moist air in a home comes into contact with cold surfaces, it cools and releases
moisture, forming water droplets. This can lead to mold growth, timber decay, and a host of health
issues, making addressing condensation a top priority for homeowners.
The Role of PIV Systems
Positive Input Ventilation systems work by creating a balanced air exchange within a property,
effectively combating the issues caused by condensation. Here’s how PIV systems can help:
1. Improved Air Quality
PIV systems introduce fresh, filtered air into a property from outside, diluting and replacing the
stale, humid air. This ensures that moisture levels are kept low, helping to prevent condensation
from forming on surfaces.
2. Balanced Air Pressure
By maintaining a positive air pressure inside the house, PIV systems prevent moist air—typically
found in kitchens and bathrooms—from seeping into living areas. This is crucial in old homes where
rooms often lack adequate airflow.
3. Cost-effective Solution
Unlike traditional heating solutions that can significantly elevate energy bills, PIV systems are
relatively low in running costs. Their ability to reduce moisture levels can lead to fewer repair needs
and lower energy consumption, creating long-term savings for homeowners.
4. Simple Installation and Maintenance
PIV systems can be retrofitted into older homes with relative ease. A single unit is usually sufficient
to ventilate an entire property, and they require minimal maintenance—typically just an annual filter
replacement.

5. Compatibility with Existing Structures
Many PIV systems are designed to fit seamlessly into the architecture of older homes. Whether it’s
placed in the loft or a central location, PIV systems can be integrated without the need for significant
structural alterations.
Additional Measures to Complement PIV Systems
While PIV systems offer significant benefits for combating condensation, there are additional
strategies homeowners can employ:
 Home Insulation: Updating insulation in walls, attics, and basements can create a more
stable indoor temperature, reducing the likelihood of condensation.
 Double Glazing: Replacing old single-glazed windows with energy-efficient double glazing
can help minimize heat loss.
 Dehumidifiers: In particularly damp areas of the home, using a dehumidifier can further aid
in moisture control.
 Regular Maintenance: Keeping gutters clean, addressing leaks, and ensuring adequate
drainage around the property can help reduce moisture ingress.
Conclusion
For homeowners residing in older houses, addressing condensation is essential to preserve the
home’s structure and ensure a healthy living environment. PIV systems provide a cost-effective and
efficient solution to manage humidity levels, improving air quality and reducing the risks associated
with excess moisture.
By investing in a PIV system and implementing additional moisture control strategies, homeowners
can enjoy the timeless charm of their older properties while ensuring a comfortable and healthy
indoor atmosphere.

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