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02.05.13

Williamsburg Public Library Certified LEED Gold

Williamsburg Public Library is the most recent OPN project to receive recognition from the United States Green Building Council with an award of LEED Gold. The community library is only the third library in the State of Iowa to achieve this recognition.

The design team felt from the beginning that this project had the potential to be a highly-successful, sustainable building. With that in mind, they set out to design the building to operate at least 40% more efficiently than what is required by code, consume 30% less water and reduce electricity use through daylight harvesting. While the building was designed to meet or exceed LEED Silver standards, smart design decisions earned enough points and credits to qualify for LEED Gold Certification.

The design team incorporated an array of sustainable design strategies into the interior and exterior design, including:

  • High performance, rain screen exterior wall
  • High performance, thermally-broken, insulated, low-E, exterior windows
  • High performance, Structural Insulated Panels (SIPS) were used in the construction of the roof
  • High performance, geothermal heating & cooling system
  • Lighting system tied to sensors that dim or completely turn off lights during daylight hours of operations (Daylight Harvesting)
  • Rooms equipped with Occupancy and Vacancy Sensors that turn off lights when rooms are unoccupied
  • Fundamental Commissioning of all HVAC and Electrical Systems to insure peak performance and efficiency.
  • Low VOC paints, adhesives, sealants that improve indoor air quality
  • Building materials with a high level of recycled content
  • Low-flow plumbing fixtures that conserve water consumption
  • Recycled or salvaged at least 75% of all construction waste (landfill deferral)
  • Landscaping design that specified native plantings to avoid the need to irrigate the site
  • Design supports a building-wide recycling program

Learn more about our approach to sustainability and view other  LEED certified projects >