civil engineering & architecture€¦ · civil engineering & architecture 2.3.4 adding up...
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Civil Engineering & Architecture
2.3 Residential Design –Affordable Housing
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Civil Engineering & Architecture
2.3.4 Adding up to Green
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Habitat for Humanity – Affordable Housing
NOTE: Merge the client needs to Habitat for Humanity’s construction guidelines
• ½ Acre Site– 1046 Maple Ave, Noblesville,
Indiana 46060
• Size of the House– 2 Bedroom/1 Bathroom - 900
sf (40 gal. water heater)– 3 Bedroom/1-1/2 Bathroom -
1070 sf (52 gal. water heater)– 4 Bedroom/2 Bathrooms -
1233 sf
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Habitat for Humanity Guidelines(abridged)
– NOTE: Merge the client needs to Habitat for Humanity’s construction guidelines
• Size of the House– 2 Bedroom/1 Bathroom - 900 sf (40 gal. water heater)– 3 Bedroom/1-1/2 Bathroom - 1070 sf (52 gal. water heater)– 4 Bedroom/2 Bathrooms - 1233 sf
• Type of Construction– Foundation
• Crawl Space: 4’ deep & 36”x24” access panel• Basement: 8’ deep with interior & exterior access• Slab• Drainage is gravity flow or sump pump• NOTE: Do not include basement unless required by city code.
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Habitat for Humanity Guidelines(abridged)
• Type of Construction (cont’d)– Wall System
• Wood Frame System: 2”x6” sheathed with ½”board insulation
• Concrete System: standard methods
– Roof System• Truss 16” apart on center with 7/16” Oriented
Strand (A.K.A. Wood Particle) Board• Gable Roof with 5/12 pitch
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Habitat for Humanity Guidelines(abridged)
• Accessibility per ADA– Entrance with no porch, step or overhang/
– Doors are 36” wide– Hallways are 42” wide
– Kitchen have 5’ diameter of open space to move
– 1 Bathroom must be accessible– Each bathroom has grab bars
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Habitat for Humanity Guidelines(abridged)
• Energy Efficiency per LEEDS & Energy Star– Insulation– Heating & Cooling– Appliances– Home Electronics– Lighting
– uses at least 15% less energy than standard homes
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Habitat for Humanity Guidelines(abridged)
• Insulation– Wood Frame: R-19 value, fiberglass batt insulation
and ½ insulating foam– Ceiling: R-38 blown in insulation– Foundations Walls: 2” blue board foam & 6 mil paper
retarder
• Doors– 2 Steel Clad Insulated Doors
• Primary Door: 6 panel with half moon light• 3’ wide
– Attic accessible
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Habitat for Humanity Guidelines(abridged)
• Windows– white, vinyl, single hung, tilt-in, low e double pane
with screens– Every bedroom must have at least 1 window– Kitchen/Dining: at least 2 windows– Basement: egress windows– Linen Closet– Build in Closet on First Floor
NOTE: An egress window is a window that is required in specific locations in a dwelling and is intended to provide an emergency means of exiting a dwelling. Windows must meet specific size and requirements to qualify as an egress window.
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Habitat for Humanity Guidelines(abridged)
• HVAC, Washer/Dryer, & Plumbing– Electric Heat Pump– Water Heater (see above for size)– Washer/Dryer Area with Installation– Hose Bibs (2): exterior
• Lighting Fixtures– Ceiling fixtures in all rooms– Fluorescent light fixture with switch in each closet– Light fixture over sinks in bathroom and kitchen– Light fixture at Porches and Entrances
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LEED Certification Process
1. Contact LEED for Homes Provider and register the project with the USGBC..
2. Identify a project team, including the LEED-H AP/Consultant.
3. Build the home to the stated goals and have green measures verified by a Green Rater and qualified energy rater (HERS in CA).
4. Achieve certification as a LEED home.5. Post-certification PR and marketing support.
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LEED’s Home Size Threshold Adjustment Formula
Threshold adjustment = 13 * log (actual home size / neutral home
size) / log (2).
2 Bedroom: 13* Log (900/1400) / Log (2)= -8.23
Find Award Adjustment
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LEED’s Home Size Award Adjustment Formula
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LEED’s Home Size Award Adjustment Formula Example
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LEED’s Home Size Adjustment Chart
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LEED’s Home Size Adjustment Chart
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LEED’s Certification2 Bedroom / 900 sf
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