SunGuard EC

BUILD WITH LIGHT®
Dynamic Glazing
SunGuard EC
TINT-ON-DEMAND GLASS ALLOWS YOU TO CONTROL HEAT
GAIN AND DAYLIGHTING FOR INCREASED ENERGY SAVINGS
SunGuard EC glass
transitions between
clear and tinted states
to increase comfort,
productivity and
energy performance.
Light and Heat at Your Command
Glass that transitions between clear and tinted states lets you control how much
light and heat enter a space. SunGuard EC glass has an electrochromic coating with
Soladigm technology that makes this possible at the flip of a switch or the signal of an
operating system.
SunGuard EC is a versatile performer for outside conditions that vary by the season
and by the hour. In its clear state, SunGuard EC welcomes daylight and passive
solar heat to naturally light and warm the interior space. In its tinted state, this glass
blocks unwanted solar heat to reduce the need for air conditioning. At the same
time, it controls glare without obstructing the view. SunGuard EC also can be used in
combination with a SunGuard low-E coating to improve U-factor by up to five points.
SunGuard EC offers an innovative new way to increase the comfort and control for
building occupants, improve energy performance and reduce operating costs, and
do so without the use of shades or blinds that obstruct the view and carry cleaning
and maintenance costs. This product gives architects the freedom to use more glass
while meeting building codes that limit solar heat gain.
Benefits of SunGuard EC
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Creates opportunities to downsize HVAC system requirements and operating costs
Offers variable control for optimal efficiency and occupancy comfort
In clear state, permits natural daylighting and passive solar heating
Fully tinted, achieves low solar heat gain of 0.09 and reduces glare
Designed to meet advanced building codes and help projects gain LEED credits
Works with SunGuard low-E to improve U-factor
with
TECHNOLOGY
SunGuard and Build With Light are trademarks of Guardian Industries Corp.
© 2012 Guardian Industries Corp.
To learn more, call us at
1-866-GuardSG (482-7374) or visit us
online www.SunGuardGlass.com
SunGuard EC Technical Information
SunGuard EC lets you make the most of changing needs and conditions, transitioning
between clear and tinted glass. This optical versatility is made possible by a solid-state
coating applied directly to surface #2 of the insulated glass unit. Activated by a lowvoltage electric charge, layers of metal oxide within the coating change between four
tint states. Integration with the building’s electrical system is simple. SunGuard EC can
be controlled by building users or a building management system.
How it works
In its clear state, SunGuard EC transmits more
than 60% of available natural sunlight and has
a 0.47 solar heat gain coefficient (SHGC)—
exceeding the passive solar heating capability
of typical low-E glass.
When fully tinted, SunGuard EC cuts the
transmission of sunlight to 2% and lowers the
SHGC to 0.09, keeping interior spaces cool,
reducing glare and minimizing the need for
blinds that block the view.
EC window specifications
% Transmittance
% Reflectance
Tvis
Tuv
Tsol
Rout
Rin
Rsol
U-value1
SHGC
EC clear and clear
58%
3%
38%
18%
20%
18%
0.29
0.46
EC clear and SNX 62/27
45%
0.4%
15%
16%
14%
28%
0.24
0.28
EC fully tint and clear
3%
0.4%
1%
7%
17%
11%
0.29
0.09
EC fully tint and SNX 62/27
2%
0.1%
1%
7%
13%
11%
0.24
0.07
1. Based on 1" IGU with ½" 90% argon-filled gap and two ¼" lites.
SunGuard EC on surface #2, SNX 62/27 on surface #3. Performance values generated using LBNL Window6.3, IGDB v23.
Low-Power Solution
The power required for one 60-watt incandescent bulb can tint
more than 1,800 sq. ft. (167 m2) of SunGuard EC glass. Peak power
usage occurs during transition between tint states.
Soladigm manufactures next-generation building solutions that improve energy efficiency. The company’s
Dynamic Glass switches from clear to tinted on demand, saving money, adding environmmental value and
improving quality of life. Soladigm is headquartered in Milpitas, California and has manufacturing facilities
in Olive Branch, Mississippi. For more information, visit Soladigm.com.
Guardian Industries is a global leader in float glass, fabricated glass, fiberglass insulation and
other building materials for commercial, residential, interior and automotive applications. Guardian is
headquartered in Auburn Hills, Michigan. For more information, visit Guardian.com.
Power consumption
Peak or transition
W/ft 2 (W/m 2 )
0.1 (1.0)
Average or hold
0.03 (0.3)
System off
0.00 (0.0)