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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

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


Project scope
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)


Past work
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



Semester goals
Semester Goals

  • Green rating systems & standards

  • Disbanded recently to focus on other areas


Green rating systems
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


Leed research
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


Biotown
LEED

  • Divided into teams

  • Review sections among team

  • Reviewed applicability of LEED to our project


Construction manual brochure
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


Construction manual layout
Construction Manual Layout

  • Table of Contents

    • Interior finishes

    • Orientation and design

    • Foundations

    • Wall systems

    • Roof

    • Landscaping

  • Documented & created during/after construction


Homeowners manual objectives
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




Elevations
Elevations

North Face


Elevations1
Elevations

East Face

West Face


Elevations2
Elevations

South Face



Design considerations
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



Energy modeling
Energy Modeling

  • Monthly and yearly totals

    • Heat load (kWh)

    • Electric load (kWh)

  • Size equipment

  • Analyze effectiveness of materials and systems



Semester goals1
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


Section breakdown
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


Biotown

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


Biotown

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


Biotown

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


Siding
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


Alternative heating
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


Biotown
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


Future project work
Future Project Work

  • Complete material list

    • Format: Component

      Application

      Cost

      Green justification

      Pros & Cons

  • Local suppliers

  • Using resources


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