Green Building at Potawot

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Potawot Front

Site / Demo

  • Restoration of native landscape and farm 4 years prior to building
  • Designed with considerations to solar, wind, and visual aspects
  • Fill used to create topography for habitat and aspect

Foundation

  • Slab foundation using local aggregate

Landscaping

  • Planted wetland, meadow, and upland native plants throughout clinic landscaping and entire site
  • Integrated stormwater system from roof and parking lot runoff
  • Installed snags and woody debris to attract wildlife
  • Pine resin pitch semi-permeable trails
  • Use of recycled plastic decking (Trex)
  • Used recycled redwood on decks, bridges, benches, and signs whenever possible
  • 3 acre Organic Food Garden with onsite farmer’s market
  • Installed bike racks to promote biking

Native Landscaping Around Potawot

[click photo to enlarge]

Structural Frame and Building Envelope

  • Concrete tilt-up wall construction using split redwood forms
  • The walls, roof, and glazing all feature higher resistance to heat transmission than required by California

Exterior finish

  • Stained concrete to look like redwood
  • Seamless Metal Roof

Flooring

  • Recycled hem-fir ends
  • Non-toxic glues in carpet
  • Patch type carpet for replacing only small areas that need it

 

Recycled Hem-fir Flooring

[click photo to enlarge]

Interior Finishes

  • Non-lead based paints
  • Recycled redwood from old mill and barn

Appliances

  • Energy Star Refrigerators

Electrical

  • All Compact Florescent Lighting (T-8 and T-5 lamps)
  • Use of some motion sensor light switch
  • Microlite Lighting System

Heating, Ventilating, and Air Conditioning

  • Highly efficient Boilers (min. 87% efficiency)
  • Highly efficient Chillers
  • Computerized HVAC system
  • Use of VAV (Variable Air Volume) system to manage airflow with a Variable Frequency Drives (VFDs) to reduce the speed of the standard induction electric motor. Maximizing the fan energy savings associated with matching airflow to building load.
  • High Efficient motors for air handlers and pumps
  • Building Automation System: The Direct Digital Control (DC) system provides accurate, efficient control of all the building system components.

Insulation

  • Use of all dual pane windows
  • Minimum of R-19 on walls
  • Minimum of R-30 in the ceiling and roof

Plumbing

  • Insulated hot water pipes
  • Urinals, lavatories, and faucet aerators throughout the building are low-flow water-conserving designs

Renewable Energy

  • 42 KW grid-tie solar system (~25% of clinics energy demands)
  • Installed well pump for garden with conduit ready to integrate solar
  • Use of passive solar (skylights, windows, etc.)
  • Waste reduction efforts through recycling, composting, and resource minimization
  • Promote use of email to reduce paper consumption

Potawot Solar Electric System

[click photo to enlarge]