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Affordable, Safe, Energy Efficient Homes. Rachel Jagoda Project Manager for Housing Technology Federation of American Scientists October 16-17, 2004. Housing Needs in Appalachia FAS Housing Technology Project Research Promising Technologies Future Research Questions?. The Problem
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Affordable, Safe, Energy Efficient Homes Rachel Jagoda Project Manager for Housing Technology Federation of American Scientists October 16-17, 2004
Housing Needs in Appalachia • FAS Housing Technology Project Research • Promising Technologies • Future Research • Questions?
The Problem High cost of quality housing Extreme heat and cold Wind, hail, snow, and rain Cost and energy of maintenance The Solution Low cost materials and construction techniques Quality insulation and a tight envelope Strong, durable materials Housing Needs In Appalachia
Affordable Energy Efficient Durable and safe Local Economy Culturally Acceptable Rapid Implementation Environmentally sustainable Minimal or no proprietary technology Ease of maintenance Reproducible in other markets Housing Technology Project
Research to Date • Heat Loss Calculations • Cost Analysis • Structural Calculations • Energy Use Calculations • 3-D Structural Testing • Fire Safety Testing (pictured) • Indoor Air Quality Monitoring • Construction of Model Houses • Monitoring and Documentation
Promising Technologies Expanded Polystyrene Panels (EPS) with cementitious coating • Inexpensive • Durable • High R-rating • Structural • Fire safe • Wood-free EPS slabs
Structural Tests dead, snow • Study resistance to every day stresses (live and dead loads) • Investigate stability in extreme conditions (snow, high wind, earthquakes) live wind seismic shear base shear
Fire Tests • Study resistance to heat and flames • Measure smoke production and toxicity • Checks stability after fire
Energy Analysis • Determines and minimizes annual fuel costs • Calculates insulation needs
Manufacturing and Design Expanded Polystyrene Manufacturing Process • Pre-expansion of pellets to 40x original size • Maturing to stabilize granule • Molding by reheating with steam • Hot wire cutting EPS Mold and Hot-wire Cutter
EPS and Cement Board Panel • Pressed Cellulose Fiber Cement Board Panels • Glued together with high-strength adhesive • Dried under high pressure (12 psi or 83 kPa) • Cement board splines
COSTS Need to find designer/architect with experience in panel building BENEFITS Low cost, durable housing can be built cheaply and quickly anywhere Cost/Benefit Analysis
Cost Analysis 1,456 square foot one-story home SIP cost = $46,597.00 Conventional cost = $55,287 Source: Genesis Affordable Housing
Future Research • Houston model home monitoring • Shake table testing • Moisture penetration analysis • HVAC and hot water heater analysis • Energy use calculations • Research into new technologies