the direct path to sustainability

Hunzinger Construction Corporate Headquarters

Role: LEED Consultant to the Construction Manager

Rating: FIRST LEED-CI Gold project in Wisconsin

Hunzinger Construction Corporate Headquarters Renovation is located at 21100 Enterprise Avenue in Brookfield, WI. Hunzinger served as design/builder for the 5,300 SF renovation that was the first ever project in the State of Wisconsin to achieve LEED-CI Gold. Sustainable Building Solutions served as LEED Consultant. Hunzinger set out to create a more centralized Estimating department, maximize the existing space for the Accounting department and project management support personnel, update the HVAC system to provide better temperature control for occupants and create a more energy and resource efficient building.

The result was a project that achieved all those goals and the LEED-CI Gold certification by reducing water use by 30% using waterless urinals, low-flow toilets, and low-flow, sensor operated lavatory faucets, using high efficiency recessed direct/indirect fixtures with T8 lamps that achieved greater than an 18% reduction in lighting power density, using dual level switching, automatic shut-offs, and photo-sensing dimming and replacing the HVAC system. The new HVAC system units utilize R-1004A refrigerant and are rated at 12.7 EER, and an IPLV rating of 14.6, surpassing the benchmark requirements of 11.0 EER and 11.4 IPLV. Private offices have zone damper and adjustable zone sensors and open interior areas have three zone dampers. On the construction side, 89% of the construction and demolition waste recycled and diverted from landfills.

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