Ensuring good air flow is essential in every home. While there are many options available to plan a system, the advantages of whole-house ventilation often make it the most reliable and effective choice for long-term performance.
Why ventilation matters
Ventilation is the controlled movement of air through a property and is vital in preventing condensation and damp. According to government reports, in 2015, approximately one million UK homes were affected by damp, with almost 60% of cases caused by condensation. Effective ventilation removes moist air before it can settle on surfaces, helping to prevent mould growth and protecting the building fabric from damage.
The problems of damp and mould are far from cosmetic. The NHS reports that damp and mouldy conditions can impact asthma sufferers, weaken the immune system, and exacerbate allergies and skin rashes, all of which highlight the importance of maintaining good indoor air quality.
Types of ventilation
Passive ventilation relies on natural air movement through gaps, vents, and air bricks. While simple, it is inconsistent, as airflow depends heavily on weather conditions. Extractor fans provide a controlled method in high-moisture areas such as kitchens and bathrooms but only protect those individual rooms.
Whole house systems Whole house ventilation delivers consistent airflow throughout the property.
· Positive Input Ventilation (PIV): introduces filtered fresh air from outside, pushing out stale, moist air.
· Mechanical Extract Ventilation (MEV): removes air from multiple rooms, allowing clean air to enter naturally.
Some systems feature Mechanical Ventilation with Heat Recovery (MVHR), recovering warmth from extracted air to heat incoming air, improving comfort and energy efficiency.
Whole house ventilation helps reduce condensation, damp, VOCs, and allergens — creating healthier homes and more efficient installations.
For more information about Envirovent products please speak with your Account Manager.