sustainability & historic preservation don hartley, architect utah division of state history...
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Sustainability &Historic Preservation
Don Hartley, ArchitectUtah Division of State History
"The Greenest Building is the One Already Built." Carl Elefante
“Sustainable development is the kind of development that meets the needs of the present without compromising the ability of future generations to meet
their own needs.”
Brundtland Commission (UN) 1987.
The Triple Bottom Line of Sustainability
3-E’s economic ecological equity
TBL financial environmental social
3-P’s profit planet people
Energy Efficiency and Sustainability• Factoring embodied energy intothe sustainable design equation.
Conclusion:“57 Years before any life-cycle energy savings is achieved.”
• Very low energy use buildings (<3.4 Btu/h-ft2 or 1 watt/ft2)
• Buildings (or portions of) that are neither heated nor cooled
• Buildings designated as historic (Section 101.4.2.3)
IECC Exceptions:IECC Exceptions:
According to the National Trust for Historic Preservation’s Green Lab the most cost-effective
investments in energy savings include:
• Blower-Door and Thermal Imaging tests• Insulation in attics (maybe walls)• Seal ducts• High-Efficiency appliances, water heaters, HVAC
equipment• Lighting (CFL’s and LED’s)• Improve the performance of existing windows
Case Study
Blower-Door and Thermal Imaging Tests
Where does the energy go?
Insulation in attics…
…(maybe walls)
Modern construction withvapor barrier
Typical historic constructionwithout vapor barrier
Seal Ducts
Radiant Heat (no ducts)
High-Efficiency Appliances in Kitchen and Laundry
High-Efficiency Water Heating
High-Efficiency Evaporative Cooler
High-Efficiency Evaporative Cooler
High-Efficiency Evaporative Cooler
High-Efficiency Evaporative Cooler
Lighting
Improve the performance of existing windows
Improve the performance of existing windows
Improve the performance of existing windows
American Heritage Windows, Salt Lake City www.vintagewindows.com/
Improve the performance of existing windows
Improve the performance of existing windowswith low-e type window film
Why not replace windows in historic buildings?
Why not replace windows in historic buildings?
Maintenance = Preservation = Sustainabiltiy
Sustainability &Historic Preservation
Don Hartley, ArchitectUtah Division of State History
QUESTIONS?