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 Karges-Faulconbridge, Inc.
| 开发商: |
Bill Karges and Jim Faulconbridge |
容积率: |
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| 地址: |
Roseville, Minn. |
建筑面积: |
34,000 sq. feet |
| 竣工日期: |
December 2003 |
高度: |
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| 能源利用: |
Exceeds Minnesota Energy Code requirements for energy efficiency by 65%.
Energy Star score of 93 based on LEED-EB requirements
Closed-loop ground-source heat pump system (48 bore holes at 200 feet each) heats and cools the building.
Radiant ceiling panels in bathrooms transfer the heat directly to surfaces.
Infrared heating is used in the high bay areas to heat the large thermal mass of the building, which radiates heat evenly and reduces the use of fan energy.
A desiccant wheel exchanges heat between the building exhaust and fresh air streams and controls humidity according to seasonal needs to conserve energy. |
| 选址和节水方案: |
Reused majority of building’s core and shell (some refinishing occurred).
Added an Energy-Star-rated roof
More than 88% of construction and demolition materials were recovered for recycling through implementation of a construction waste management plan.
Used many products with post-consumer (PC) recycled content: ceramic tile (100% PC), rubber flooring (72% PC), carpet (23% PC, 25% post-industrial), and structural steel (40% post-industrial).
Natural linoleum flooring in breakroom
Maximized use of local and regional materials. |
| 室内环境品质: |
KFI replaced much of the parking lot with natural prairie grasses, wild flowers, and a raingarden, increasing green space on the 3.6-acre lot by 54%.
Ponds hold stormwater, filtering out sediment and slowly releasing water into the watershed.
No permanent, potable irrigation system.
Waterless urinals save 21,000 gallons of water per year.
Sensor-type faucets and toilets reduce water use. |
| 材料选择: |
Open floor plan promotes greater daylight penetration through two large north-facing vertical monitors; perimeter windows let daylight into the breakroom and perimeter offices
Multilevel switching of direct/indirect lighting turns off one-third of the lights during the day.
Displacement ventilation allows air to enter near floor level and rise gently as it warms, providing better indoor air quality without draftiness.
KFI has formal policies endorsing low-VOC-emitting paints and adhesives, and low-impact environmental cleaning fluids. |
| 设计创新: |
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| 相关评论: |
KFI reused the shell of an existing commercial building to create their engineering firm headquarters. Benefits from reusing the shell of a former grocery store included ease of winter construction and up-front cost savings of $40/square foot. Removing most of the parking lot increased the amount of green space on the site. KFI’s headquarters is the first LEED-certified building in Minnesota to receive a gold rating. As a mechanical and electrical contracting firm, KFI made an extended effort to be energy efficient and demonstrate many different technologies. Winner of a 2005 Governor's Award. |
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