Natural Air Ventilation for Buildings: Sustainable, Smart, and Healthy

Welcome to the future of building design—where natural air ventilation meets innovation, sustainability, and occupant well-being. Whether you’re designing a new structure or retrofitting an existing one, integrating passive ventilation systems is a powerful way to reduce energy consumption, improve indoor air quality, and create comfortable living and working environments.

What Is Natural Ventilation?

Natural ventilation is the process of supplying and removing air through a building without using mechanical systems. It harnesses wind pressure, thermal buoyancy, and architectural design to circulate fresh air, making it an eco-friendly alternative to traditional HVAC systems.

Why Choose Natural Ventilation?

Natural ventilation is more than a design choice—it’s a commitment to sustainability, health, and innovation. By embracing passive cooling, ventilation design, and eco-conscious architecture, you’re investing in a future where buildings breathe naturally and occupants thrive.

Benefits of Natural Ventilation in Buildings

  • Energy Efficiency: Reduce reliance on air conditioning and mechanical fans.
  • Improved Indoor Air Quality: Minimise pollutants and CO buildup.
  • Thermal Comfort: Maintain optimal temperatures using cross ventilation and stack ventilation.
  • Sustainable Design: Lower carbon footprint and operational costs.
  • Noise Reduction: Less mechanical noise compared to forced ventilation systems.

Key Strategies for Effective Natural Ventilation

  • Cross Ventilation: Positioning windows and vents to allow air to flow across spaces.
  • Stack Ventilation: Using vertical shafts or atriums to promote airflow through temperature differences.
  • Ventilation Louvres: Adjustable slats that regulate airflow and daylight.
  • Wind Towers & Ventilation Shafts: Architectural elements that capture and direct wind.
  • Operable Windows & Skylights: Simple yet powerful tools for air exchange.
  • Night Purge Ventilation: Cooling buildings overnight by flushing out warm air.

Design Considerations

  • Climate Adaptation: Tailor ventilation strategies to local weather patterns.
  • Building Orientation: Maximize exposure to prevailing winds.
  • Airflow Modeling: Use computational tools to simulate and optimize ventilation paths.
  • Integration with Green Building Standards: Align with LEED, BREEAM, and WELL certifications.

Applications Across Building Types

  • Commercial Buildings: Offices, retail spaces, and public buildings benefit from reduced energy costs and healthier environments.
  • Residential Homes: Enhance comfort and air quality with smart window placement and passive cooling.
  • Educational Facilities: Promote concentration and well-being with fresh air circulation.
  • Healthcare Buildings: Support infection control and patient recovery with natural airflow.

AT12 - Twin

AT12 – Twin Chain Actuator / 24V / 1A dc / 500N

The AT12 – Twin is a certified and compliant Chain Actuator designed to provide precise and reliable operation for environmental window automation ventilation applications. Designed with decades of experience within the façade industry the AT12 – Twin can seamlessly integrate into a BMS or be operated via independent control panels, switches and sensors.

✔︎ Seamless two way communication with Building Management Systems via Modbus protocol

✔︎ Simple 2 wire open/close 24V dc operation for non BMS applications

✔︎ Slimline design with handed end block connector (either end) for simple site cabling and connection

✔︎ Precise opening control with true status and position feedback (via Modbus)

✔︎ Programmable**

✔︎ Programmable seal relief to optimise window performance

✔︎ Inbuilt cycle counting to provide operational frequency to protect warranty

✔︎ 15,000 operational cycles or 12 months warranty*

✔︎ 425mm opening stroke for greater free area performance

✔︎ 2 x 2000N closed clamping force points of contact for increased security

✔︎ Operation via analogue 0-10V input and permanent 24V dc (Primary end)

*Commercial terms for each project will supersede this warranty information.

**Average opening & closing speed

Meets the required maximum indoor ambient noise level under BS EN ISO 16032.2004 for BB93.2015

AT12 - Single

AT12 Chain Actuator / 24V DC / 250N

The AT12 is a certified and compliant Chain Actuator designed to provide precise and reliable operation for Environmental Window Automation Ventilation applications. Designed with decades of experience within the façade industry the AT12 can seamlessly integrate into a BMS system or be operated via independent control panels, switches and sensors.

✔︎ Seamless two way communication with Building Management Systems via Modbus protocol

✔︎ Simple 2 wire open/close 24v DC operation for non BMS applications

✔︎ Slimline design with handed end block connector (either end) for simple site cabling and connection

✔︎ Synchronised operation for up to four actuators

✔︎ Precise opening control with true status and position feedback (via Modbus)

✔︎ Programmable opening and closing speed

✔︎ Programmable seal relief to optimise window performance

✔︎ Inbuilt cycle counting to provide operational frequency to protect warranty

✔︎ 15,000 operational cycles or 12 months warranty*

✔︎ 425mm opening stroke for greater free area performance

✔︎ 2000N closed clamping force for increased security

✔︎ Operation via analogue 0-10V input and permanent 24V DC (handed side only)

*Commercial terms for each project will supersede this warranty information.

Meets the required maximum indoor ambient noise level under BS EN ISO 16032.2004 for BB93 (2015)

Twin SECO N 24 25

Chain Actuator / 24V dc / 2 x 250N

The Twin SECO N 24 25 is a certified and compliant Chain Actuator designed to provide precise and reliable operation for Environmental Ventilation applications.

Orientation

✔︎ ‘Frequency of operation’ data logging records every actuator movement

✔︎ Compact design with variable options for stroke length

✔︎ Standard finish is Grey RAL 9006, can be customised to suit requirements

✔︎ Standard fl ex length is 2m but this can be modifi ed to suit installation requirements

✔︎ Extensive range of brackets to suit a variety of window systems

✔︎ Quiet operation with configurable speed control

SECO N 24 25

Chain Actuator / 24V dc / 250N

The SECO N 24 25 is a certified and compliant Chain Actuator designed to provide precise and reliable operation for Environmental Ventilation applications.

Orientation

✔︎ ‘Frequency of operation’ data logging records every actuator movement

✔︎ Compact design with variable options for stroke length

✔︎ Standard fi nish is Grey RAL 9006, can be customised to suit requirements

✔︎ Standard fl ex length is 2m but this can be modifi ed to suit installation requirements

✔︎ Extensive range of brackets to suit a variety of window systems

✔︎ Quiet operation with configurable speed control

Tested to BS EN ISO 16032:2004 for BB93 (2015).