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Biotown

Biotown. Staff: James Caraher Justin Mauck Sean McCaffrey Nathaniel Pedue Louis Ruggio Brandon Reece David “Chi Chi” Truong. COO: Laura Heverly Sub team Leaders: Peter Brinson Adam Ralph

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Biotown

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  1. Biotown Staff: James Caraher Justin Mauck Sean McCaffrey Nathaniel Pedue Louis Ruggio Brandon Reece David “Chi Chi” Truong COO: Laura Heverly Sub team Leaders: Peter Brinson Adam Ralph Dan Rozsahegyi

  2. Project Scope • Energy efficient affordable green home design • Green training for homeowners and building construction • Habitat for Humanity • Home design is to be delivered May 2009. • Training methods delivered Fall 2009 (after construction)

  3. Past Work • LEED research • Most feasible • How to attain points • Products/Practices most beneficial • Cost-effective, highest return on the dollar • Revised LEED research • Similar, with more points • Demographic research on Reynolds, Indiana • Conferences • Tacoma, WA – Evergreen Standard • Indianapolis, IN - NGBS

  4. Education

  5. Semester Goals • Green rating systems & standards • Disbanded recently to focus on other areas

  6. Green Rating Systems • Energy Star • Funded for HFH by city of Lafayette • LEED, Leadership in Energy and Environmental Design • Several LEED accredited professionals within HFH and Purdue community • NGBS, National Green Building Standard • NAHB, National Association of Home Builders • Rating system popular in Indiana • Simplified compared to LEED, contractor friendly • HFH Construction Manager familiar with this system

  7. LEED Research • Comprehensive approach at energy design • Looks at current homeowner energy use • Looks at energy use after built • Looks at lasting imprint of house

  8. LEED • Divided into teams • Review sections among team • Reviewed applicability of LEED to our project

  9. Construction Manual Brochure • Used for techniques and products • Included in brochure • Cost • Payback • Typical vendors • Sources of information (resources) • Installation • Pros/Cons • Myths • Picture/Diagram

  10. Construction Manual Layout • Table of Contents • Interior finishes • Orientation and design • Foundations • Wall systems • Roof • Landscaping • Documented & created during/after construction

  11. Homeowners Manual Objectives • Properly inform them of appropriate measures that need to be taken • Consider level of homeowner’s education into consideration when designing level of detail

  12. Design

  13. Site Orientation

  14. Elevations North Face

  15. Elevations East Face West Face

  16. Elevations South Face

  17. Floor Plan

  18. Design Considerations • Orientation • Living spaces on south • Bedrooms on east • Kitchen/garage on northwest • Natural day lighting in living spaces • Accessible bathrooms • Centralize plumbing • Flow between public/semi public/ private • Handicap accessible • Minimize hallways • Natural Ventilation

  19. Sun Penetration

  20. Energy Modeling • Monthly and yearly totals • Heat load (kWh) • Electric load (kWh) • Size equipment • Analyze effectiveness of materials and systems

  21. Construction

  22. Semester Goals Material selection and construction methods • Create home design with design team • Work with HFH CM, John Sears • Material details (i.e. dimensions) for design • Select materials • Justification

  23. Section Breakdown • Plans broken into sections • Work through the home design plans step-by-step • Organizes progress • Section 1 • Home layout • Foundation details • Zoning and building permit information • Section 2 • Material selections (insulation, windows, doors) • Roof pitch & overhang • Section 3 • Material selections (paint, flooring) • Attic

  24. Raised heel truss • Allows full-height insulation over the exterior wall • Added height requires additional materials, increases cost • Beneficial due to payback in heating/cooling costs

  25. Water Heater • 40-gallon tank • Most cost effective • Tankless conserves water; higher electric bill • Our site has a well, therefore water conservation does not benefit the homeowner

  26. Insulation • Spray foam: ½” along interior wall • Seals wall from air infiltration • Batt Insulation: R13 along interior wall on top of spray foam • Provides “meat” of insulating power • Foam sheathing: ½” along exterior wall • Radiant and vapor barrier • R3 insulator

  27. Siding • Vinyl: • Inexpensive, $2-3/sq. ft. • Low maintenance • Easy to install • Fiber cement: • Long life span • Low maintenance • Costs more than vinyl, $3-4/sq. ft. • More difficult to install (delicate handling) • Fireproof • Heat/cold resistant

  28. Alternative Heating • Geothermal: • Water pipes run through yard • Heat/cool home • Expensive installation/maintenance • Additional method of heating in winter • Masonry heating: • Centralized furnace • Heats fluid through masonry twice a day • Wood burning, expensive installation

  29. HVAC • Air-to-air heat exchanger • $500-600 • Pre-heat/cool air • Replaces stale air • High electricity load • Air filtration system • $300+ • Some portable models • Filters air, misses larger particles

  30. Future Project Work • Complete material list • Format: Component Application Cost Green justification Pros & Cons • Local suppliers • Using resources

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