WHY AIRDOOR > Weather Protection
Active protection against weather‑related infiltration
AirDoor creates an invisible, active air barrier that protects open entrances from wind, rain and unwanted outside air, reducing draughts, improving comfort and efficiency, and freeing up valuable space at the doorway.
How AirDoor delivers weather protection
Protects open entrances from external conditions
When doors are open, wind, rain and unwanted outside air can freely enter buildings, often overpowering fixed‑speed overdoor heaters. AirDoor uses a smart control strategy and sensors inside and outside the entrance to continuously monitor air‑pressure differences as external conditions change.
Integrated variable‑speed fans then respond in real time, generating an active air plume across the opening that counteracts weather‑driven infiltration. This allows entrances to remain fully open without physical barriers, reducing rain entering the building, cold draughts and wind‑tunnel effects while maintaining stable internal conditions.
Engineered and proven through advanced airflow modelling
AirDoor was developed by Wirth Research, specialists in computational fluid dynamics (CFD), to address the challenge of uncontrolled air movement at open entrances. CFD modelling is central to the system’s design and is continually used to analyse how external weather conditions affect real building entrances.
Thermal image outputs from this modelling demonstrate how AirDoor forms a consistent air barrier across the opening under both high and low wind conditions, delivering improved entrance sealing compared with having no entrance system or traditional overdoor heaters.
Protects internal conditions, space and sensitive products
By counteracting weather‑driven infiltration at open entrances, AirDoor helps stabilise temperatures and internal conditions in areas most affected by frequent door use, delivering consistent comfort near the entrance, even during periods of high footfall and rapidly changing external weather.
Stabilised temperatures reduce the likelihood of fridge outages, while limiting the entry of wind and rain helps protect products positioned close to the doorway. As a result, these areas become more usable and operationally reliable, freeing up valuable space near the entrance.
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Additional AirDoor benefits
Performance you can measure
Energy Efficiency
By limiting air infiltration at the entrance and retaining treated indoor air, AirDoor reduces energy loss and helps existing heating and cooling systems operate more efficiently.
Cost Savings
With no heating or cooling element, AirDoor delivers significantly lower running costs than traditional heated systems, offering a strong return on investment and lasting long-term savings.
Thermal Comfort
By maintaining consistent indoor temperatures and eliminating cold draughts at the entrance, AirDoor creates a more comfortable environment for customers, staff and visitors.
Indoor Air Quality
AirDoor limits the entry of dust, pollutants and insects at the entrance, supporting cleaner indoor air and healthier conditions for occupants.
Sustainability
By reducing energy consumption and carbon impact at the entrance, AirDoor helps businesses cut emissions and supports net-zero ambitions without compromising comfort or performance.
Award-winning British Engineering
CIBSE Building Performance Awards
Product or Innovation of the Year – Air Quality
H&V News Awards
Excellence in IEQ Award
The Energy Saving Awards
Ventilation Product of the Year
CIBSE Building Performance Awards
Product or Innovation of the Year – Thermal Comfort
H&V News Awards
Commercial HVAC Product of the Year – Ventilation
BESA Industry Awards
Product Innovation
CIBSE Building Performance Awards
Product or Innovation of the Year – Wellbeing
H&V News Awards
Net Zero Impact of the Year Award
Make UK Manufacturing Awards
Innovation – South Region
FAQs
Can’t find the answer you’re looking for?
AirDoor creates an invisible, active air barrier that keeps indoor air in, and the elements out and can significantly reduce air infiltration into buildings.
Yes. AirDoor is designed to perform consistently in environments with open door policies, frequent door openings and constant footfall.
Yes. AirDoor significantly reduces the ingress of cold external air, helping maintain stable internal conditions.
Weather infiltration is the uncontrolled entry of outside air, rain and wind through open doors, causing heat loss, draughts and reduced building efficiency as internal heating and cooling systems must work harder to offset. AirDoor can offer weather protection at entrances by creating an invisible, active air barrier that limits outdoor air entering the building.
AirDoor helps reduce the entry of dust, insects, exhaust fumes and airborne pollutants through busy entrances by creating an invisible, active air barrier.
Yes. As well as preventing weather infiltration, many clients have reported a noticeable reduction in airborne insects entering through the doorway.