The Chicago Green Bungalow Initiative by the Chicago Department of the Environment Green Bungalow Initiative – May 2004 Chicago Department of the Environment
� Background � Typical Bungalow Features � Design, Energy & “Green”Features of each Bungalow � Site Work � Summary - Energy Savings, “Green” Products & Costs Green Bungalow Initiative – May 2004 Chicago Department of the Environment
Goals of the Green Bungalow Initiative � To demonstrate creative methods of rehabbing bungalows that appeal to contemporary homeowners while preserving the historic character of the homes � To demonstrate innovative energy efficient and environmentally sustainable techniques to renovate and landscape bungalows � To encourage homeownership in the Chicago Lawn/Gage Park neighborhoods through visible neighborhood revitalization � To strengthen the cohesiveness of the neighborhood through a variety of streetscape improvements � To protect the market values in Chicago Lawn/Gage Park Green Bungalow Initiative – May 2004 Chicago Department of the Environment
Partners in the Green Bungalow Initiative � City of Chicago Department of Environment � City of Chicago Department of Housing � U.S. Department of Housing and Urban Development � Neighborhood Housing Services – Chicago Lawn � NHS Redevelopment Corporation � Southwest Home Equity Assurance Program � Greater Southwest Development Corporation � Historic Chicago Bungalow Association Green Bungalow Initiative – May 2004 Chicago Department of the Environment
Timeline 1. Select demonstration bungalows. 2. Acquisition of bungalows. 3. Organize neighborhood improvements. 4. Document existing conditions. 5. AIA design charette for four programs and spatial design ideas. 6. Sustainable (green) design components identified and assigned. 7. Construction documents. 8. Construction. 9. Marketing, sales and public outreach. 10. Occupancy. 11. Monitor and evaluate performance. Green Bungalow Initiative – May 2004 Chicago Department of the Environment
Five Keys to Rehabbing Green Know the house. • • Integrate methods and materials. • Propose appropriate interventions. • Know local suppliers and contractors. • Monitor and learn. Green Bungalow Initiative – May 2004 Chicago Department of the Environment
Sustainable Qualities Checklist A. Site Design • Emphasize on-site infiltration • Minimize impacts to soils • Design plantings to support sustainable goals • Promote wise use of resources in design solutions • Specify construction methods B. Water Conservation • Use low-flow fixtures • Evaluate water savings via alternate pipe sizing • Evaluate “speedy” hot water devices Green Bungalow Initiative – May 2004 Chicago Department of the Environment
C. Indoor Air Quality • Assure environmental concerns (radon, lead paint, asbestos) are fully addressed • Eliminate volatile organic compounds • Promote natural ventilation (simple, low cost) • Select construction materials with minimal off-gassing • Control humidity to eliminate mold and mildew growth • Integrate and balance air-handling system • Minimize potential for dust accumulation during and after construction Green Bungalow Initiative – May 2004 Chicago Department of the Environment
D. Energy Use • Optimize insulation choices – demonstrate many options • Explore alternate energy sources, including active and passive solar • Demonstrate compliance with proposed Chicago Energy Code • Promote energy efficient lighting (fluorescent, Green Lights Program) • Use exclusively Energy Star appliances • Use and Energy Star builder • Perform HERS analysis • Explore cooling ideas (blinds, passive cooling, shading) • Promote a variety of controls (occupancy sensors, humidity sensors, thermostats) • Evaluate on-demand hot water heater • Evaluate combination hot water heater/furnace • Evaluate greywater storage and re-use • Promote heat recovery wherever possible (water and air) Green Bungalow Initiative – May 2004 Chicago Department of the Environment
E. Resource Conservation • Minimize waste throughout entire process, including design (review electronic documents) • Implement a construction/demolition debris management and recycling program • Utilize existing structure to the maximum • Reuse as much of the existing components as possible • Promote locally produced materials • Use refurbished materials • Use recycled/recyclable materials • Promote occupant waste reduction via recycling and composting • “Right-size” structural improvements F. Miscellaneous Establish contractor and occupant education programs Green Bungalow Initiative – May 2004 Chicago Department of the Environment
Green Bungalow Initiative – May 2004 Chicago Department of the Environment
R- -values values R -1” of brick = 0.20 - 8” brick wall = 1.60 - 1” fiberglass = 3.14 - 1” rock wool = 3.70 - 1” spray foam = 5.00 Green Bungalow Initiative – May 2004 Chicago Department of the Environment
Basement Wall Insulation Typical R-Values • Poured Concrete (8” thick) = 0.64 • Concrete Blocks = 0.70 to 2.00 • Single Glazed Window = 0.91 Green Bungalow Initiative – May 2004 Chicago Department of the Environment
Green Bungalow Initiative – May 2004 Chicago Department of the Environment
Basic Ventilation System • goal is to eliminate excess moisture in the home • bathrooms must have exhaust fans vented to the outside • kitchens must have exhaust fans (no re-circulating type fans) Green Bungalow Initiative – May 2004 Chicago Department of the Environment
Sealed Combustion Appliances • improved air quality • all combustion air drawn from outside • high efficiency Geothermal heating system Sealed combustion furnace Sealed combustion boiler Sealed combustion WH Green Bungalow Initiative – May 2004 Chicago Department of the Environment
Green Bungalow Initiative – May 2004 Chicago Department of the Environment
1. T H E H A N D I C A P P E D A C C E S S I B L E H O M E O M E 1. T H E H A N D I C A P P E D A C C E S S I B L E H 6421 South Fairfield � Retrofitted for wheel chair lift at side entrance � First floor master suite and laundry room addition � Wheel chair accessible kitchen and bathroom � 1,400 ft 2 (includes 500 ft 2 addition) � Selective demolition Green Bungalow Initiative – May 2004 Chicago Department of the Environment
Green Bungalow Initiative – May 2004 Chicago Department of the Environment
1. T H E H A N D I C A P P E D A C C E S S I B L E H O M E 6421 South Fairfield E n e r g y F e a t u r e s � Geothermal closed loop system that uses the consistent temperature of the earth to provide heating, cooling and hot water for the home. � Cellulose insulation in attic, foam insulation in sidewalls, and fiberglass batt insulation in basement � Energy Star appliances � Fluorescent lighting Green Bungalow Initiative – May 2004 Chicago Department of the Environment
Selective demolition (“moderate rehab”) Green Bungalow Initiative – May 2004 Chicago Department of the Environment
Spray foam insulation Green Bungalow Initiative – May 2004 Chicago Department of the Environment
Addition Green Bungalow Initiative – May 2004 Chicago Department of the Environment
Studs for R13 batt R5 foam board insulation insulation Green Bungalow Initiative – May 2004 Chicago Department of the Environment
R43 cellulose insulation Green Bungalow Initiative – May 2004 Chicago Department of the Environment
R10 Basement Blanket R15 foundation wall insulation Green Bungalow Initiative – May 2004 Chicago Department of the Environment
Low-E replacement windows Packed pulley-well Green Bungalow Initiative – May 2004 Chicago Department of the Environment
Geo-thermal furnace and water heater Green Bungalow Initiative – May 2004 Chicago Department of the Environment
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