Meadowlark School, PK-8
Evidence-based Design for Optimized Learning and Low Energy
- Mechanical & Electrical Engineering
- Building Performance Modeling
- Applied Research
To meet the Boulder Valley School District’s goals of providing exceptional learning environments and high energy efficiency, BranchPattern implemented many strategies to lower consumption while enhancing occupant thermal comfort and improving indoor air quality. A low energy in-floor radiant heating and cooling system works in tandem with a floor supplied displacement ventilation system to provide flexible conditioning of the occupied zone. While radiant cooling systems are rare in the United States, a collaborative approach to systems research, training, and operations resulted in completing the largest radiant cooled K-12 school in the U.S.
BranchPattern’s research on the benefits of fresh air in both cognition and user wellness significantly influenced the design in a number of ways. Operable windows and vents combined with ceiling fans allow for natural ventilation to create comfortable conditions a large portion of the school year. South facing solar chimneys are heated by the sun, resulting in buoyancy driven airflow, further increased the effectiveness of the natural ventilation system. Research on effective occupant signaling strategies were incorporated to notify occupants of when they should utilize natural ventilation in lieu of the mechanical system.
To meet the stated energy goal of 25 kBtu/sf/yr, lighting and electric loads have been designed to minimize consumption and the building is designed to accommodate a sizeable rooftop photovoltaic array. 20 daylighting tubes provide daylighting in spaces that would otherwise been artificially lit.
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