Myths, Obstacles and Opportunities of Energy Efficiency in the Re-Use of Historic Buildings Sean...
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![Page 1: Myths, Obstacles and Opportunities of Energy Efficiency in the Re-Use of Historic Buildings Sean Denniston New Buildings Institute Project Analyst.](https://reader030.fdocuments.in/reader030/viewer/2022032805/56649ee75503460f94bf7de3/html5/thumbnails/1.jpg)
Myths, Obstacles and Opportunities of Energy
Efficiency in the Re-Use of Historic Buildings
Sean DennistonNew Buildings Institute
Project Analyst
![Page 2: Myths, Obstacles and Opportunities of Energy Efficiency in the Re-Use of Historic Buildings Sean Denniston New Buildings Institute Project Analyst.](https://reader030.fdocuments.in/reader030/viewer/2022032805/56649ee75503460f94bf7de3/html5/thumbnails/2.jpg)
National non-profit & think-tank working to improve the energy efficiency of commercial buildings.
Intro
![Page 3: Myths, Obstacles and Opportunities of Energy Efficiency in the Re-Use of Historic Buildings Sean Denniston New Buildings Institute Project Analyst.](https://reader030.fdocuments.in/reader030/viewer/2022032805/56649ee75503460f94bf7de3/html5/thumbnails/3.jpg)
The Goal
We don’t have time to give you a comprehensive guide to energy
efficiency in historic preservation, but we can give you a framework and point
you in the right direction.
Intro
![Page 4: Myths, Obstacles and Opportunities of Energy Efficiency in the Re-Use of Historic Buildings Sean Denniston New Buildings Institute Project Analyst.](https://reader030.fdocuments.in/reader030/viewer/2022032805/56649ee75503460f94bf7de3/html5/thumbnails/4.jpg)
Myths
![Page 5: Myths, Obstacles and Opportunities of Energy Efficiency in the Re-Use of Historic Buildings Sean Denniston New Buildings Institute Project Analyst.](https://reader030.fdocuments.in/reader030/viewer/2022032805/56649ee75503460f94bf7de3/html5/thumbnails/5.jpg)
Myth # 1:
All old buildings are inherently inefficient.
Myths
![Page 6: Myths, Obstacles and Opportunities of Energy Efficiency in the Re-Use of Historic Buildings Sean Denniston New Buildings Institute Project Analyst.](https://reader030.fdocuments.in/reader030/viewer/2022032805/56649ee75503460f94bf7de3/html5/thumbnails/6.jpg)
Myths
The Hidden Barn, Vancouver, WAThe Home of NBI
![Page 7: Myths, Obstacles and Opportunities of Energy Efficiency in the Re-Use of Historic Buildings Sean Denniston New Buildings Institute Project Analyst.](https://reader030.fdocuments.in/reader030/viewer/2022032805/56649ee75503460f94bf7de3/html5/thumbnails/7.jpg)
Myths
0
20
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Mea
sure
d E
UI (
kbtu
/sf)
"The Barn" Certified Silver Gold Platinum
• NBI Study of the measured performance of 100 LEED buildings.
![Page 8: Myths, Obstacles and Opportunities of Energy Efficiency in the Re-Use of Historic Buildings Sean Denniston New Buildings Institute Project Analyst.](https://reader030.fdocuments.in/reader030/viewer/2022032805/56649ee75503460f94bf7de3/html5/thumbnails/8.jpg)
Myth # 2:
You have to replace those historic windows if you
want to be energy efficient.
Myths
![Page 9: Myths, Obstacles and Opportunities of Energy Efficiency in the Re-Use of Historic Buildings Sean Denniston New Buildings Institute Project Analyst.](https://reader030.fdocuments.in/reader030/viewer/2022032805/56649ee75503460f94bf7de3/html5/thumbnails/9.jpg)
Myths
Window Description U-Value R-Value
Loose: single glazed, no storm window 0.92 1.09
Double-glazed insulating wood sash, 1 over 1 0.49 2.04Double-glazed insulating vinyl sash & frame, 1 over 1 0.47 2.13
![Page 10: Myths, Obstacles and Opportunities of Energy Efficiency in the Re-Use of Historic Buildings Sean Denniston New Buildings Institute Project Analyst.](https://reader030.fdocuments.in/reader030/viewer/2022032805/56649ee75503460f94bf7de3/html5/thumbnails/10.jpg)
MythsWindow Description U-Value R-Value
Loose: single glazed, no storm window 0.92 1.09
Typical and tight: single-glazed, storm windows 0.51 1.96Single-glazed prime sash with low-e storm window 0.43 2.33
Double-glazed insulating wood sash, 1 over 1 0.49 2.04Double-glazed insulating vinyl sash & frame, 1 over 1 0.47 2.13
![Page 11: Myths, Obstacles and Opportunities of Energy Efficiency in the Re-Use of Historic Buildings Sean Denniston New Buildings Institute Project Analyst.](https://reader030.fdocuments.in/reader030/viewer/2022032805/56649ee75503460f94bf7de3/html5/thumbnails/11.jpg)
Myths
Yearly energy saving (on one 3’ x 5’ window): 625,922 BtuAnnual savings per window ( $0.95/therm): $9.65/ year_____________________________________________________Simple payback ($400 installed / $9.65 ): 41½ years!!
“OLD” WOOD WINDOW/REPLACEMENT WINDOW ENERGY ANALYSIS. -- Keith Haberern
![Page 12: Myths, Obstacles and Opportunities of Energy Efficiency in the Re-Use of Historic Buildings Sean Denniston New Buildings Institute Project Analyst.](https://reader030.fdocuments.in/reader030/viewer/2022032805/56649ee75503460f94bf7de3/html5/thumbnails/12.jpg)
Obstacles
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IgnoranceObstacles
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Ignorance
Obstacles
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Ignorance
Obstacles MinimumBottom 35%Top 35%Maximum
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Ignorance
• Mechanical Contractors are trained to minimize comfort complaints, not energy.
Obstacles
![Page 17: Myths, Obstacles and Opportunities of Energy Efficiency in the Re-Use of Historic Buildings Sean Denniston New Buildings Institute Project Analyst.](https://reader030.fdocuments.in/reader030/viewer/2022032805/56649ee75503460f94bf7de3/html5/thumbnails/17.jpg)
Ignorance
• Mechanical Contractors are trained to minimize comfort complaints, not energy.
• Many contractors and mechanical engineers don’t understand the latest techniques and approaches.
Obstacles
![Page 18: Myths, Obstacles and Opportunities of Energy Efficiency in the Re-Use of Historic Buildings Sean Denniston New Buildings Institute Project Analyst.](https://reader030.fdocuments.in/reader030/viewer/2022032805/56649ee75503460f94bf7de3/html5/thumbnails/18.jpg)
Ignorance
• Mechanical Contractors are trained to minimize comfort complaints, not energy.
• Many contractors and mechanical engineers don’t understand the latest techniques and approaches.
• Many consultants and mechanical engineers only understand how we build buildings now.
Obstacles
![Page 19: Myths, Obstacles and Opportunities of Energy Efficiency in the Re-Use of Historic Buildings Sean Denniston New Buildings Institute Project Analyst.](https://reader030.fdocuments.in/reader030/viewer/2022032805/56649ee75503460f94bf7de3/html5/thumbnails/19.jpg)
Obstacles The Code
![Page 20: Myths, Obstacles and Opportunities of Energy Efficiency in the Re-Use of Historic Buildings Sean Denniston New Buildings Institute Project Analyst.](https://reader030.fdocuments.in/reader030/viewer/2022032805/56649ee75503460f94bf7de3/html5/thumbnails/20.jpg)
The Code
• A building that meets code is not an efficient building.
Obstacles
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The Code
Obstacles
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The Code
• A building that meets code is not an efficient building.
• Code compliance can result in minimally efficient in-efficiency.Obstacles
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Opportunities
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Passive Strategies
Opportunities
![Page 25: Myths, Obstacles and Opportunities of Energy Efficiency in the Re-Use of Historic Buildings Sean Denniston New Buildings Institute Project Analyst.](https://reader030.fdocuments.in/reader030/viewer/2022032805/56649ee75503460f94bf7de3/html5/thumbnails/25.jpg)
Passive Strategies
1887: The cutting edge of Green Design.
Opportunities
![Page 26: Myths, Obstacles and Opportunities of Energy Efficiency in the Re-Use of Historic Buildings Sean Denniston New Buildings Institute Project Analyst.](https://reader030.fdocuments.in/reader030/viewer/2022032805/56649ee75503460f94bf7de3/html5/thumbnails/26.jpg)
Passive Strategies
1887: The cutting edge of Green Design.
Opportunities
![Page 27: Myths, Obstacles and Opportunities of Energy Efficiency in the Re-Use of Historic Buildings Sean Denniston New Buildings Institute Project Analyst.](https://reader030.fdocuments.in/reader030/viewer/2022032805/56649ee75503460f94bf7de3/html5/thumbnails/27.jpg)
Passive Strategies
• Minimized Glazing Area• Thermal Mass• Daylighting• Natural Ventilation
Opportunities
![Page 28: Myths, Obstacles and Opportunities of Energy Efficiency in the Re-Use of Historic Buildings Sean Denniston New Buildings Institute Project Analyst.](https://reader030.fdocuments.in/reader030/viewer/2022032805/56649ee75503460f94bf7de3/html5/thumbnails/28.jpg)
CommissioningOpportunities
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ActualProposed
100%
50%
0%
-50%
-100%
Sav
ings
as
% o
f B
asel
ine
These buildings appear to usemore energy than the code baseline!
Opportunities
Commissioning
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Embodied Energy
Opportunities
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Opportunities
Embodied Energy
![Page 32: Myths, Obstacles and Opportunities of Energy Efficiency in the Re-Use of Historic Buildings Sean Denniston New Buildings Institute Project Analyst.](https://reader030.fdocuments.in/reader030/viewer/2022032805/56649ee75503460f94bf7de3/html5/thumbnails/32.jpg)
Opportunities
Embodied Energy
![Page 33: Myths, Obstacles and Opportunities of Energy Efficiency in the Re-Use of Historic Buildings Sean Denniston New Buildings Institute Project Analyst.](https://reader030.fdocuments.in/reader030/viewer/2022032805/56649ee75503460f94bf7de3/html5/thumbnails/33.jpg)
Opportunities
Embodied Energy
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
Baseline Getting to 50 Getting to 75 Getting to 0
Operational
Embodied
![Page 34: Myths, Obstacles and Opportunities of Energy Efficiency in the Re-Use of Historic Buildings Sean Denniston New Buildings Institute Project Analyst.](https://reader030.fdocuments.in/reader030/viewer/2022032805/56649ee75503460f94bf7de3/html5/thumbnails/34.jpg)
Major Lessons
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Major Lessons
• Many historic buildings were designed for energy efficiency, take advantage of it.
![Page 36: Myths, Obstacles and Opportunities of Energy Efficiency in the Re-Use of Historic Buildings Sean Denniston New Buildings Institute Project Analyst.](https://reader030.fdocuments.in/reader030/viewer/2022032805/56649ee75503460f94bf7de3/html5/thumbnails/36.jpg)
Major Lessons
• Many historic buildings were designed for energy efficiency, take advantage of it.
• Commissioning is vital.
![Page 37: Myths, Obstacles and Opportunities of Energy Efficiency in the Re-Use of Historic Buildings Sean Denniston New Buildings Institute Project Analyst.](https://reader030.fdocuments.in/reader030/viewer/2022032805/56649ee75503460f94bf7de3/html5/thumbnails/37.jpg)
Major Lessons
• Many historic buildings were designed for energy efficiency, take advantage of it.
• Commissioning is vital.• Expertise! Expertise! Expertise!
![Page 38: Myths, Obstacles and Opportunities of Energy Efficiency in the Re-Use of Historic Buildings Sean Denniston New Buildings Institute Project Analyst.](https://reader030.fdocuments.in/reader030/viewer/2022032805/56649ee75503460f94bf7de3/html5/thumbnails/38.jpg)
Thank youNew Buildings Institute
Sean [email protected]
www.newbuildings.orgwww.advancedbuildings.net
www.gettingto50.net