Summer Meeting Continues with Technical Presentations
The Insulating Glass Manufacturers Alliance (IGMA) Summer Meeting
continued yesterday with technical presentations and a technical
service committee meeting. Following a breakfast buffet at which
IGMA president Luc Cormier discussed IGMA's strategic plan for the
future, attendees filled the room to hear technical presentations
from Ray Wakefield of TruLite, Jeff Haberer of Cardinal and Andre
Piers of TNO.
Wakefield was the first to take center stage, making a presentation
on mock-up testing-what it is, why it's important and how mock-up
"The importance of the mock-up is that it provides invaluable
information to the design team to assist them all-from the architect
to the building owner to the glazing contractor and even us as glass
suppliers. In giving us unique information about how that particular
system is going to perform, it isn't like an off-the-shelf storefront
assembly, this is a highly-engineered product and needs this type
of testing to assure that it's going to work," he said.
Haberer took to the podium after Wakefield to present the findings
of Cardinal's residential field project comparing the energy efficiencies
of clear glass, high solar gain low-E glass and low solar gain low-E
glass. The company built identical houses in three different locations
across the United States-two houses in Roseville, Calif., three
houses in Windrose, Texas, and four houses in Fort Wayne, Ind. At
least one house in each location was equipped with low solar gain
low-E and each house was scientifically measured and monitored for
energy used, solar heat gained and how much the air conditioning
and heating units worked to keep the interior temperature at a consistent
Piers discussed European requirements for gas fill, explaining to
IGMA members how gas fill is currently measured in Europe.
"In Europe, we have subsidized programs from the government
so that homeowners can get price reductions if they replace windows
with high-performance glass," he said. He explained that in
Europe the U-value of the glass is taken from the center of the
glass and "is only intended for comparison of performance of
products under same condition and thus makes no statement for actual
in-service of U-value."
After lunch, the technical services committee met to recap the accomplishments
of the group as a whole as well as the headway made in working group
meetings the day before.
The summer meeting closes today at noon, ending with technical presentations
this morning. Stay tuned to usgnn.com for more information.