This paper provides an overview of the scientific literature, which provides information on the association between the use of natural and mixed-mode ventilation and its effect on factors such as productivity, Sick Building Syndrome (SBS), health and indoor climate. The literature shows that all of the independent studies around the world indicate that natural and mixed-mode ventilation systems can contribute to some major savings.
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In this white paper, you’ll discover:
1. How focus on employees wellbeing is a good business 2. Productivity and energy benefits 3. Occupant’s perceptions, symptoms prevalence and perceived control opportunities 4. Prevalence in symptoms in schools
Performance outcomes with natural and mixed-mode ventilation
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7-8% improvement in test scores
School children in classrooms with operable windows compared with children in classrooms with fixed windows.
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Up to 18% in productivity gains
Annually with natural ventilation or mixed mode air conditioning
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77% user satisfaction
With naturally ventilated spaces compared to 50% with mechanical ventilation
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Project References
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City of Glasgow Colleges - an engaging and energizing building
City of Glasgow Colleges took a definitive commitment to the environment by embracing several sustainable design strategies such as automated natural ventilation. To reduce heat loads and maintain air quality, the atrium acts as a natural stack to drive cross ventilation through the building.
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HouseZero on Harvard University's campus raises the bar for energy efficiency
HouseZero of Harvard University was renovated to inspire others by how older, existing structures can be altered to become ultra-efficient facilities. The older indoor climate systems were fully replaced with a new indoor climate paradigm which relies on the addition of thermal mass and radiant surfaces.
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UCL Student Centre at Gordon Street - a BREEAM building with a holistic IAQ approach
The new Student Centre of the University College London is a flagship for sustainable development in the urban environment. UCL’s strategy was to focus on a “passive first” approach to the indoor climate to reduce energy use and thereby carbon emissions.
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MECD - fresh learning spaces in Manchester
MECD is Manchester University’s brand-new Engineering Campus. Intelligent actuator technology was key to providing the best indoor climate possible via fresh air ventilation. MotorLink® communication technology was chosen because it ensures seamless integration between the BMS and window automation.
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Intelligent automation at Augusta University Cancer Research Center
Augusta University Cancer Research Center chose WindowMaster actuators and MotorControllers as part of the building’s heat and smoke management strategy. The actuators and controllers are enabled with MotorLink® so that they can communicate directly with the building management systems about their position and status.
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