Presentation by Brandon Tinianov, Serious Materials On Thursday June 11th, the Alliance to Save Energy hosted a webinar for Alliance Associates and others interested in opportunities for window energy efficiency. Moderated by the Alliance’s Vice President for Programs Jeff Harris, speakers representing research, industry and low-income weatherization highlighted options that can minimize window heat loss far beyond common practice. The focus was on high-end R-5 window technologies, but lower-cost products, such as low-E storm windows, and the specific needs of low-income weatherization programs were also discussed. The five presenters’ different perspectives converged in the message that there is a great need for more energy-efficient windows and that advanced technologies and their integration in incentive and weatherization programs can bring far greater savings within reach.

1. Serious Materials
Windows are the largest opportunity for improvement
• We develop and manufacture green building
materials that save energy, save money, improve
occupant comfort, and aggressively address
climate change
• Super energy efficient residential windows &
commercial glass
Our Mission: to reduce carbon dioxide emissions by one billion tons annually

2. Elements of a High Performance Window
Foam insulated frame
Dual or triple perimeter seal
Warm edge spacer
Inert gas fill
Internal films/panes
Wide insulated glass pocket
Wide insulated glazing unit
Low conductivity frame
Wet glazing
Multiple layers of weather stripping
Our Mission: to reduce carbon dioxide emissions by one billion tons annually

3. Heat transfer models of two windows
Composite
spacer
Metal spacer
Aluminum frame Fiberglass
frame
Typical Low-E Aluminum Window Advanced R-7 Window
Note: Modeled via THERM 6.1 Simulation software, Lawrence Berkeley National Lab
Our Mission: to reduce carbon dioxide emissions by one billion tons annually

4. Residential High Performance Windows
are Cost-Effective
$4,500
Value of
$4,000 lead abatement?
House:
$3,500 CO2 reduction - New York City; double pane; gas heating
- 2 story, 1200 sqft brick house
$3,000 - 180 sqft windows equally distributed
- “Typical”
Installation &
insulation, HVAC, shading, leakage
$2,500 materials
Replacement windows:
- R-5, SHGC-0.24
$2,000 Energy bill
savings
Energy prices:
- electricity: 2008 Jan-Aug average
$1,500 - gas: 2005-07 average
Window
retail cost
- escalation: 3%/yr real
$1,000 Greenhouse value: $30/t CO2
Replacement cost:
- $12/sqft for windows
$500 - $5/sqft for installation
Life: 20 years
$-
Discounted present Installed cost
value of savings
Note: Modeled via RESFEN software, Lawrence Berkeley National Lab
Our Mission: to reduce carbon dioxide emissions by one billion tons annually

5. Residential High Performance Windows
are Cost-Effective
$5,000
$4,500
$4,000
$3,500
$3,000
$2,500
$2,000
$1,500
$1,000
$500
$-
Note: Modeled via RESFEN software, Lawrence Berkeley National Lab
Our Mission: to reduce carbon dioxide emissions by one billion tons annually

6. 25+% Annual Energy Savings - Office Building
(compared to double clear glazing)
35%
Phoenix
Washington DC
Chicago Seattle
30%
Atlanta
New York
25%
20%
15%
10%
5%
0%
Dual Low-e
R-5
R-7
Note: Modeled via EnergyPlus software, US Department of Energy
Our Mission: to reduce carbon dioxide emissions by one billion tons annually

7. < 2 yr Simple Payback Period - Office Building
(compared to double clear glazing)
1.4
New York
1.2
Seattle
Phoenix Washington DC
1
Simple Payback Period [Years]
Chicago
Atlanta
0.8
0.6
0.4
0.2
0
Dual Low-e
R-5
R-7
Note: Modeled via EnergyPlus software, US Department of Energy
Our Mission: to reduce carbon dioxide emissions by one billion tons annually

8. 30-Year Savings of $7M - Office Building
(compared to double clear glazing, 7% fuel escalation, 2.8% discount rate)
$9
Atlanta
$8
Chicago
$7
Washington DC
Seattle
30-Year Savings [millions of $]
Phoenix
$6
New York
$5
$4
$3
$2
$1
$0
R-5
Dual Low-e
R-7
Note: Modeled via EnergyPlus software, US Department of Energy
Our Mission: to reduce carbon dioxide emissions by one billion tons annually

9. • Advanced window technology includes
– Low conductivity frames, three or more panes, novel spacers
• In residential applications R-5 to R-7 windows are
cost effective
• In commercial applications (office example),
– Energy savings of 25+%
– Simple payback in <2 years
– Lifetime savings ~$7,000,000
Our Mission: to reduce carbon dioxide emissions by one billion tons annually

10. Dr. Brandon Tinianov, LEED AP
CTO, Serious Materials
btinianov@seriousmaterials.com
www.SeriousMaterials.com
www.SeriousWindows.com
Our Mission: to reduce carbon dioxide emissions by one billion tons annually