Pro Clima’s INTELLO® and INTELLO® PLUS airtightness membranes are Sensitive Choice approved and designed to support healthier homes by improving airtightness and moisture control where it matters most.

For people living with asthma or allergies, homes should be a place to breathe easily — not a source of hidden triggers. Yet many New Zealand homes allow dust, pollen, moisture, and other airborne irritants to move freely through walls and ceilings, affecting indoor air quality and everyday comfort. The way a home’s building envelope (walls, roofs, and floors) is designed plays a major role in creating a warm, dry, and healthy indoor environment.

Reducing allergens with an effective air barrier

Uncontrolled air leaks through the building envelope act as direct pathways for allergens. Outdoor pollen, dust, and pollutants can be drawn inside through gaps and cracks (bypassing any ventilation or air purification system the home may have) and circulate through living spaces, triggering asthma and allergy symptoms.

INTELLO® and INTELLO® PLUS create a continuous internal air barrier, reducing uncontrolled airflow through the building envelope. By limiting how allergens enter the home, they help support cleaner indoor air, which provides a calmer living environment for people sensitive to respiratory triggers.

Vapour control that helps prevent damp and mould

Vapour control in a building context refers to the methods, materials, and design strategies used to manage the movement of water vapour through the building envelope. Moisture is one of the biggest contributors to poor indoor air quality. When moist air enters walls and ceilings and cannot dry safely, condensation can occur, increasing the risk of dampness and mould growth.

INTELLO® and INTELLO® PLUS are intelligent vapour control layers that adapt to seasonal conditions. Their superior drying capacity helps moisture escape when required, reducing condensation risk and supporting a drier, healthier building envelope. This is especially important for people with asthma, as mould spores are a well-known respiratory trigger.

Maximising the performance of thermal insulation

Damp insulation performs poorly. When insulation is affected by moisture from air infiltration (unintentional or accidental introduction of outside air into a building), homes become colder, harder to heat, and more prone to draughts — all of which can negatively affect comfort and respiratory health.

By improving airtightness and vapour control, Pro Clima’s Intelligent Airtightness System helps protect insulation from moisture, maximising its thermal performance. The result is a more consistent and comfortable indoor temperature throughout the year.

Intelligent airtightness for warm, dry, healthy buildings

INTELLO® PLUS offers enhanced durability, making it ideal for high-performance and energy-efficient homes where airtightness continuity is essential. When combined with Pro Clima tapes, seals, and accessories, INTELLO® PLUS supports warm, dry, healthy buildings designed for long-term indoor air quality.

Airtight homes, or any homes for that matter, must also be properly ventilated. Pro Clima systems are designed to work alongside mechanical ventilation solutions, ensuring fresh air is introduced intentionally and continuously — rather than randomly through leaks — helping dilute indoor pollutants without drawing in allergens from uncontrolled sources.

A health-focused choice for New Zealand homes

For families managing asthma and allergies, improving the performance of the building envelope is a big step toward better indoor air quality, preventing the triggers for asthma symptoms rather than needing to address them once they occur. INTELLO® and INTELLO® PLUS support healthier living by reducing allergens, controlling moisture, and creating more comfortable homes — making easier breathing part of everyday life.

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Sensitive Choice New Zealand

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