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ZERONET: Shops at Oak Creek. Group Members and Areas of Focus. Zach Sawyer – Overall Project Goals Jeremy Taylor – Energy Marnie Melendez – Outdoor Water Conservation Renee Ayala – Indoor Water Conservation Andrew Flores – Indoor Environmental Quality Mika Yagi – Green Materials.
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Group Members and Areas of Focus • Zach Sawyer – Overall Project Goals • Jeremy Taylor – Energy • Marnie Melendez – Outdoor Water Conservation • Renee Ayala – Indoor Water Conservation • Andrew Flores – Indoor Environmental Quality • Mika Yagi – Green Materials
Project Goals • ZERO NET Building • Reduction in Energy Use • Production of Clean Energy • Integrated Use of Southern California’s Climate • Create as much Green Space as Possible • Prevent the Contamination of Runoff
Energy Strategies • Photovoltaic Panel (PV) & Wind Generators • Passive Solar, Insulation, & Fenestration • Solar Hot Water & Tankless Water Heater • Lighting & Appliances • Automated Systems: Timers, Dimmers, & Sensors
Photovoltaic Panels (PV) & Wind Generators • Photovoltaic Panel • Abundant source of solar in microclimate • Mostly consistent source during daylight • Proposed parking sun shade structure • 12,500 SF flat roof for 2’ x 4’ • Monochrystaline PV Panels • Wind Generators • Less abundant source of wind in microclimate • Inconsistent source of power
Passive Solar, Insulation, & Fenestration • Passive Solar • Deciduous Trees to shade in summer & allow heat in during winter • Over-sized Building Eves cantilevered to shade windows in summer when sun is higher & allow heat in during winter • Insulation • Recycled Denim • Air Krete Blown-In Insulation • Fenestration • Energy Efficient Windows • Natural Ventilation • Daylighting
Solar Hot Water & Tankless Water Heater • Solar Hot Water • Backup Tankless Water Heater
Lighting & Appliances • Efficient Lighting • Compact Fluorescents • High Flux LED’s • Energy Star Appliances • Dishwashers • Refrigeration Units • Washers • Dryers
Automated Systems: Timers, Dimmers, & Sensors • Automated Systems • Timers • Dimmers • Occupancy Sensors • Light Sensors
Value Return • Investment • Excess power returned to power grid • Rebates available • Return on investment in roughly (10) years
Climate Appropriate Native Plants California Poppy Western Redbud Ray Hartman California Lilac Coast Live Oaks Arroyo Willows
Rain Capture A one inch rain on a 2,000 square foot roof conserves over 1000 gallons of free water. * Maximum Annual Gallons of Rain Capture = Annual Rainfall x Square Footage of Roof x .623 Gallons
Grey Water System • The client can install a grey water system for onsite landscape water use or connect to the reclaimed water in the purple pipe. • We would recommend using a Netafim drip irrigation system using .6 gallons per hour (gph) spaced 12” on center
The food service sector uses more than its fair share of potable water, averaging 300,000 gallons a year per restaurant.
Client Needs or Wishes: • Minimize the amount of water waste • Reduce water costs
Recommendations for Indoor Water Conservation: • Low flow fixtures were installed in all wash basins • 2. High Efficiency Toilets were installed ( HET) in the women’s restrooms
Recommendations Continued: • 3.High Efficiency Urinals ( HEU) • 4.Flight dishwashers in kitchen • 5. Low flow pre-rinse spray valves • 6. Adjust ice machine to dispense ice, based on demand
Benefits of Recommendations: • Low-flow faucets • a. Delivers a constant water flow • b. Uses approximately 1.5 - 2.2 gpm • High Efficiency toilets • a. Offer high efficiency/low water consumption (1.0 gpf, 3.8 LPF)
Benefits Continued: 3. HEU- Flush vol. of 0.5 4. High-Efficiency PRSV a. 137 gall. Per day ( 189.2 m3) b. 50,000 gallons / yr c. 250,000 gallons over the life of the product 5. Commercial Flight Dishwasher
Flight Type Dishwasher:Medium-Size Food Service High Usage 500,000 ( gal./yr.) 30.5 ( AF/20yrs.) 25% Low Usage Annual water savings- ( gal/yr.) -65,000 Lifespan Water savings- (AF/20yrs.)=3.9Average savings=25%
Areas for Water Conservation: 1. Promptly repair leaks and faucet malfunctions 2. Eliminate thawing frozen food with running water 3. Pre-soak instead of running water
Value Return • Rebates available for High Efficiency Toilets and HEUs • Return investment over time • Water savings • Decrease in water bill
IEQ Objective • Good IEQ is crucial to the success of a retail space • Good IEQ includes good air quality, thermal comfort, visual comfort, physical comfort, physical comfort and acoustical comfort. • Our aim is to minimize indoor pollutants that acute health problems as well as distractions that cause discomfort. • Our approach incorporates green products, green materials, developing an IAQ construction plan and natural ventilation.
IEQ Checklist • Facilitate quality IEQ through good design, construction and operation and maintenance practices • Value aesthetic decisions • Provide thermal comfort • Supply adequate levels of ventilation and outside air • Prevent airborne bacteria, mold and other fungi • Avoid the use of materials high in pollutants
Factors When Selecting Materials for a Green Building Application • Performance • Service Life • Cost • Aesthetics • Availability/Delivery Schedule
LCALife Cycle Assessment(ISO 14000 Environmental Management Systems) • (4) Main Phases • Goal & Scope – LCA practitioner formulates and specifies the goal and scope of study in relation to the intended application • Life Cycle Inventory – Involves data collection and modeling of the product system, as well as description and verification of data (i.e. CO2 and intermediate chemical quantities) • Life Cycle Impact Assessment – Evaluating the contribution impact categories (i.e. global warming) • Interpretation – Analysis of the major contributions, sensitivity analysis and uncertainty analysis
CSIConstruction Specification Institute • Web-based format • Category Summary • Background Information • Product Details • Product Lifecycle • Additional Information • Authorization
Hardie Board Plank • Composition • Fiber-cement siding – 45% cement, 45% silica sand, and 10% wood fibers • Green Material Component • Wood is not from endangered species of wood • Cement and sand is in abundance • No toxic materials used in the production • Durable; longer lifetime and less maintenance than wood or vinyl
Colored Concrete • Composition • Pigment and colors added on site-cast concrete floor slabs • Green Material Component • Reduce urban heat island effect • Solar Reflectance Index (SRI) that exceeds the LEED requirement • Contributes to better indoor air quality as the need for flooring adhesives is eliminated • Durable; low-maintenance
Pervious ConcretePavements • Construction • Typically 15-25% voids • Compact the sub-grade to 92-96% of the maximum density • Mixture is composed of cementitious materials, coarse aggregate and water • Green Material Component • Provides first flush pollution control • Contributes to storm water management • Allows for use of smaller capacity storm sewers • Reduces pollutant loads entering into streams, ponds, and rivers
Exposed Structural Steel Systems • Composition • Low carbon steel containing manganese • Green Material Component • 93.3% Recycled steel scrap – “cradle-to-cradle” materials • Conserve raw materials and resources • Reduces travel distances for material transport • Strong, durable and adaptable
Conclusion • Energy • The site has a great opportunity for the use of Solar • Outdoor Water Conservation • Use of Rainwater and Efficient, but Native Landscaping • Indoor Water Conservation • The use of low flow fixtures and appliances
Conclusion (continued) • Indoor Environmental Quality • The key is to keep materials protected from the elements and debris. • Green Materials • It’s important to stress the use of Life Cycle Cost Analysis
Thank You! We would like to open the floor to any questions: