Our Sensitive Choice approved partners at Pro Clima New Zealand have produced an insightful video series outlining the key to building healthier homes for Kiwis.

In Episode 2 of “How to Build a Better Tomorrow,” Francis Mountjoy and Jon Davies discuss the concept of airtightness. They compare a draughty villa to the sealed environment of a car, demonstrating how controlling airflow is essential for energy efficiency and comfort.

Through fun experiments and a blower door test, they reveal the importance of airtightness in modern homes and how even a tiny 1mm gap over 1m2 in a building’s airtightness layer can lead to significant problems with condensation, heat loss, and moisture. Discover how airtightness protects your home and why it’s critical to efficient building design.

Pro Clima New Zealand marks 20 years of INTELLO®, the leading Intelligent Air Barrier for healthier, energy-efficient, and durable homes. To celebrate, Pro Clima has released a short documentary series comparing early 1900s villas with modern builds, exploring why many new homes still face issues with moisture, cold, and long-term structural problems.