IGMA Continues Annual Meeting with Dynamic Technical Presentations
March 26, 2010
The Insulating Glass Manufacturers Alliance (IGMA) 10th annual
meeting continued yesterday at the Paris Hotel in Las Vegas with
technical presentations on wide-ranging topics - in part because
an Ask the Expert session allowed members of the audience to have
their insulating glass questions answered. Another panel of industry
experts provided information on Glass Performance for Energy-Efficient
Fenestration, giving the audience an overview of performance
characteristics of attributes including coatings and gas fillings.
In addition, Helen Sanders of SAGE Electrochromics shared Electronically
Tintable Glass Case Studies with the IGMA audience. She began
by defining for her audience what dynamic glass is: glazings that
change their transmission in response to an outside stimulus. Electrochromics,
she explained, make up but one subcategory that includes glass that
changes in response to electric voltage. She cited the benefits
of this category of product as reduced energy and operational (lighting,
heating and cooling) costs, as well as occupancy benefits in allowing
building occupants to maintain a connection to the outdoors - as
Sanders pointed out, the whole reason for having a window in the
first place - as well as providing natural daylight.
Sanders next addressed the forces driving the market. First and
foremost, she said, energy efficiency is a significant driving factor,
especially as related legislation is leading to significant changes
in the code environment. She also made a few predictions regarding
where this technology is heading, saying that in the long-term façades
will become a lot more complex.
Sanders added, In order to meet the legislation and the energy
reduction goals that the government has you cant get there
without going to these types of solutions. Solutions, that
is, such as mechanical shading, as well as double-screen curtainwall
and exterior louvers becoming more common in Europe.
As far as thermal issues, she predicted, Were going
to need triple pane further down in the U.S. and improvements in
More specifically, Sanders offered a few predictions for the future
of electrochromic products: price will come down, further enhancements
in terms of performance (color, control and dynamic range) will
appear in the marketplace; the number of products available will
increase (active and passive products, with ranging costs and applications).
Over the last few years theres been a lot more activity
in this space, Sanders added.
Among the case studies she cited - many of which were educational
facilities, which, she said, really seemed to get dynamic
glazing - was an office building in Connecticut (CLICK
HERE to read the article in USGlass).
Wednesday afternoon the technical sessions continued (CLICK
HERE for related story) with a meeting of the Thermal Stress
working group. The group continues to solicit examples of thermal
stress breakage and reviewed its field service inspection form and
results. The group also reviewed contributions to the thermal stress
bulletin in the making, which is pulling from various companies
information on the topic with the goal of creating a matrix of risk
factors leading to thermal stress.
The day ended with further work on the Design Consideration
for Multiple Air Space IGUs document by the task group of the
same name. The group reviewed for the first time together those
sections that have been drafted, and the largely editorial comments
on those sections, before assigning the remaining sections to group
members to complete.
The IGMA annual meeting continues through Friday, and is co-located
with the Glass Association of North Americas Glass Week (CLICK
HERE for related story) and the Building Envelope Contractors
Conference beginning on Saturday. Stay tuned to USGNN.com
for updates from the conference.
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