100428 milton
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A House for the 21st Century
Milton Academy April 28, 2010
J.B. Clancy, AIA, Certified Passive House Consultant
.Albert, Righter & Tittmann Architects
The Architect’s Dream by Thomas Cole, 1840
Marc-Antoine Laugier, Essay on Architecture,
1755
Gottfried Semper, The Four Elements of Architecture, 1851
The Little House, Virginia Lee Burton
The Garden of Eden by Thomas Cole, 1828
E. Cook, "The Flow of Energy in an Industrial Society" Scientific American, 1971 p. 135.
2000 Watt Society2000 W is average amount of energy used continually by each per person
worldwide
Marland, G., T.A. Boden, and R. J. Andres. 2003. "Global, Regional, and National CO2 Emissions" In Trends: A Compendium of Data on Global Change. Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, U.S. Department of Energy, Oak Ridge, Tenn., U.S.A.
Source: 350.org
Source: Architecture 2030
Operational Energy
Leon Krier
Energy Units
Unit Fuel type Btu content
Kilowatt hour Electricity 3,414
Therm Natural gas 100,000
Gallon Heating oil 139,000
Gallon Gasoline 125,000
Embodied Energy
National Trust for Historic Preservation
History of Energy Consumption by Source in USA 1630 to Present
House 1691
Built by Richard Clemence in 1691, Johnston RI
House 1780
Winslow Crocker House, Yarmouth Port, MA, 1780
House 1850-1925
Drew House 1882, Sandwich MA
House post war 1950
Farnsworth House, Mies van der Rohe 1951, Plano, IL
House 1980 to present
Anywhere USA
House 1980 to present
McMansion, Anywhere USA
House Now – 21st Century House
Architectural Principles in the Age of Sustainability
1.Use less energy – a lot less2.Make the energy you use3.Make it local4.Make it simple5.Make it multifunctional6.Make it last 7.Make it personal and beautiful
Albert, Righter & Tittmann Architects
Habitat for Humanity Passive House
1. Use Less Energy – a lot less…
Sp
ecifi
c E
nerg
y D
em
an
d
kB
TU
/(ft
2ye
ar)
Passive House Institute
Passivhaus InstitutDarmstadt, Germany
Passive House Institute USUrbana, Illinois
Passive House ConceptControlling Heat Loss… INSULATION
R40 WALLS: R80 CEILING: R60 SLABTRIPLE-PANED WINDOWS U value 0.18
Passive House ConceptControlling Heat Loss… ELIMINATE THERMAL
BRIDGES
Passive House ConceptControlling Heat Loss… REDUCE AIR
INFILTRATION
.6 ACH @ 50 PA
Passive House ConceptCapturing Heat Gains… PEOPLE
Passive House ConceptCapturing Heat Gains… EQUIPMENT
Passive House ConceptCapturing Heat Gains… SOLAR ENERGY
Passive House ConceptControlling Gains Seasonally… WINDOWS AND
ORIENTATION
U VALUE .14: TRIPLE GLAZED: >.5 SHGC ON SOUTH WINDOWS
Passive House ConceptProviding Fresh Air… HEAT RECOVERY
VENTILATION
MINIMUM .35 ACH
Passive House ConceptINTEGRATED
Passive House ConceptPHPP MODELING SOFTWARE
Energy Demand to heat this house
Albert, Righter & Tittmann Architects
Habitat for Humanity Passive House
Albert, Righter & Tittmann Architects
Habitat for Humanity Passive House
Albert, Righter & Tittmann Architects
Habitat for Humanity Passive House
Albert, Righter & Tittmann Architects
Habitat for Humanity Passive House
Albert, Righter & Tittmann Architects
Habitat for Humanity Passive House
SOUTH ELEVATIONWEST ELEVATION
Albert, Righter & Tittmann Architects
Habitat for Humanity Passive House
Albert, Righter & Tittmann Architects
Habitat for Humanity Passive House
Albert, Righter & Tittmann Architects
Habitat for Humanity Passive House
Architectural Principles in the Age of Sustainability
1.Use less energy – a lot less2.Make the energy you use3.Make it local4.Make it simple5.Make it multifunctional6.Make it last 7.Make it personal and beautiful
Definition: Net zero energy building
The energy produced by on-site renewable energy is equal to the energy consumed by the building.
(Energy Consumed) - (Energy Produced) = ZERO Energy
2. Make the energy you use
2. Make the energy you use
So little energy is consumed that we can actually get to Zero with the addition of renewable energy
Cape House Habitat Passive House
Size 1445 SF 1445 SF
kBtu/SF - Site
72 kBtu/SF 10.5 kBtu/SF
Total Site Energy
30,000 kWh 4,450 kWh
PV Array 25 kW 3.8 kW
PV Array Size
125 panels 19 panels
Cost @ $6/W $150,000 $22,800
2. Make the energy you use
2. Make the energy you use
3. Make it local
Albert, Righter & Tittmann Architects
Make it local
Albert, Righter & Tittmann Architects
4. Make it simple
5. Make it multifunctional
Albert, Righter & Tittmann Architects
6. Make it last
Albert, Righter & Tittmann Architects
Leon Krier
6. Make it last
7. Make it Personal
Albert, Righter & Tittmann Architects
7. Make it Personal
Albert, Righter & Tittmann Architects
Resources
• PassivHaus Germany: www.passivehouse.com • Passive House US: www.passivehouse.us • Architecture 2030: www.Architecture2030.org • 350.org: www.350.org • 2000 Watt Society: www.novatlantis.ch • US Energy Information Administration:
www.eia.doe.gov
• Albert, Righter & Tittmann Architects: www.alriti.com