Habitat For Humanity

HFH Members Architectural Team

Bill Cox Brian Vosberg Rosann Magnifico John Peugeot

Web Information Team Asli Kumcu Mike Monahan

Energy Efficiency Brent Phillips Adam Stanczak Jeff Bryles Drew Susott

Architectural Team

Objectives To create a floor plan selection guide to be used

for future home owners To create a 3-D video tour of a habitat house

for prospective buyers To create building materials lists for each home

with price estimates To create a standard construction timeline

Selection Guide

Blueprints for 2, 3, & 4 bedroom homes Floor plans Elevations 3-D views Electrical plans Wall sections

Floor Plans

Elevations

Interior Views

Architectural Team

Future plans Finish floor plan selection guide Deliver interior 3-D video tour Create building materials lists Create construction timeline

Energy Team

Brent Phillips

Jeff Bryles

Adam Stanczak

Asli Kumcu

Drew Susott

Objectives

To calculate energy profiles of home designs

To find cost effective ways to improve the energy efficiency of habitat homes

Approach

Create models of multiple habitat houses within the Energy 10 software

Perform on-site energy testing and evaluation

Make modifications to the base model and compare to current design

Compare energy savings to cost of design changes

Energy 10 Inputs

Key Parameters Floor plan House orientation Lighting profiles Local utility costs Insulation Weather Windows Air infiltration model

Other Inputs Wall construction Ceiling area Floor construction Duct location Thermostat settings Daylight properties Occupants

Energy 10 Numerical OutputsPlan1278_4A1 Sep 29, 1999 Energy-10 Summary Page Weather file: Indy.et1 Variant: AutoBuild Shoebox Saved as T:\1278_4A1, Var. 1 Comments: Description: Reference Case Low-Energy Case Floor Area, ft² 1278.0 1278.0 Surface Area, ft² 3892.0 3892.0 Volume, ft³ 10224.0 10224.0 Surface Area Ratio 1.38 1.38 Total Conduction UA, Btu/h-F 300.3 229.0 Average U-value, Btu/hr-ft²-F 0.077 0.059 Wall Construction 2 x 4 frame, R=14.8 steelstud 6 poly, R=19.2 Roof Construction attic, r-30, R=29.4 flat r-38, R=38.0 Floor type, insulation Crawl Space, Reff=23.7 Slab on Grade, Reff=38.3 Window Construction 4060 double, wood, U=0.47 4060 low-e al/b, U=0.31 Window Shading None 40 deg latitude Wall total gross area, ft² 1336 1336 Roof total gross area, ft² 1278 1278 Ground total gross area, ft² 1278 1278 Window total gross area, ft² 240 336 Windows (N/E/S/W:Roof) 5/2/1/2:0 3/1/8/1:1 Glazing name double, U=0.49 double low-e, U=0.26 Operating parameters for zone 1 HVAC system Heat with Gas Furn Heat with Gas Furn Rated Output (Heat/SCool/TCool),kBtuh 48/0/0 65/0/0 Rated Air Flow/MOOA,cfm 593/0 988/0 Heating thermostat 72.0 °F, no setback 72.0 °F, setback to 67.0 °F Cooling thermostat 72.0 °F, no setup 72.0 °F, setup to 77.0 °F Heat/cool performance eff=80,EER=1.0 eff=90,EER=13.0 Economizer?/type no/NA yes/fixed dry bulb, 60.0 °F Duct leaks/conduction losses, total % 11/10 3/0 Peak Gains; IL,EL,HW,OT; W/ft² 0.20/0.04/0.66/0.36 0.15/0.03/0.66/0.36 Added mass? none 639 ft², 8in cmu Daylighting? no yes, continuous dimming Infiltration, in² ELA=177.7 ELA=48.1

Energy 10 Graphical Output

0

20

40

60

80

100

kBtu / ft²

Heating Cooling Lights Other Total

ANNUAL ENERGY USEReference Case

55.9

7.64.7

20.3

88.5

HFH 3 bedroom / Base Model

Energy 10 Graphical Output

Future Tasks

Tests

Blower door

Thermal imaging

Analyses Reevaluate central vs.

window air conditioning House wrap Automatic thermostat Air infiltration

Window type

Shingle color

Web Information Team

Mike Monahan

Asli Kumcu

Objectives

Web interface for: Floor Plans, Elevations, and Energy Analysis

Web-based construction guide and tutorial: for use by construction managers and volunteers

Interesting and easy to navigate, understand, and follow: for people with all levels of computer literacy

Approach

Modify the data created by the other two teams to make them Web compatible

Take pictures during different stages in the construction of a house - tutorial

Gather information on techniques used to build a house for tutorial

Create dynamic construction timeline Create bill of materials for each house

Complete Floor Plans, Elevation, and Energy Analysis for:

1 - 2 Bedroom house

4 - 3 Bedroom houses

1 - 4 Bedroom house

Enter Guide

Progress: Home Selection Guide

Construction timeline for a 10-week build

Construction Tips Brochures, Fall 1998 team

Progress: Construction Guide

Home Selection Guide Make the interface more enjoyable and easier to

navigate Add more designs as the other teams complete

them

Construction Timeline Building materials list Building construction timeline Volunteer on-line tutorial

Future Tasks

Habitat For Humanity