More than just adding windows

Natural Ventilation Design

Architects, engineers and owners who have considered the use of natural ventilation in a project have likely faced questions such as:

  • What is the return on investment?
  • What is the optimal opening size and distribution?
  • Automated vs manual operation
  • How does outdoor air quality impact operation?

It is not uncommon to see natural ventilation eliminated from the project by the end of schematic design because these questions go unanswered, or are often asked without considering the many benefits of natural ventilation beyond energy savings.

At AIRLIT, we have more than fifteen years of experience designing natural ventilation systems, as well as contributing to ASHRAE standards to expand its use. We believe that designing for natural ventilation should be simple, targeted, and data-driven, so that informed decisions can be made as early in the design process as possible.

Our visioning process offers clients a holistic return-on-investment evaluation, which goes beyond estimating energy savings, but also analyzes benefits to wellness and resilience, as well as realistic operational expectations. Our design process is thorough and collaborative, ensuring that the design team understands how certain detail choices can impact the performance of a naturally ventilated building.


  • Natural ventilation visioning / goal setting
  • Feasibility studies
  • System design¬†
  • Product recommendations
  • Coordination with controls providers
  • Commissioning plan development