Day Two of GANA's Glass Fabrication 2007 Opens with
Talks of Broken Glass and Other Topics
Several speakers opened Glass Fabrication 2007 yesterday, covering
a range of topics from glass breakage to the changing trends in
Bob Maltby, also known as "the professor," who works
for R&D Reflections was the morning's first speaker. He talked
about glass breakage, explaining that glass breaks in tension, not
compression. Tension can come from stress and types of cracks, he
explained. He also talked about some of the considerations that
fabricators must take when running a tempering furnace to ensure
the glass is good.
"If you're going to cut the glass," Maltby said, "You
must have uniform temperature." He explained that when the
glass comes out of the furnace and it is easily cut very little
heat is being lost in the furnace.
Mark Gold followed with a presentation on building codes and standards.
He provided an overview of the different groups and organizations
that write codes and standards and talked about the ones that relate
to glass and glazing specifically.
"A code is mandatory and a standard is voluntary," said
Gold. "Though a standard can be referenced by a code."
Green building and LEED design was covered in a presentation by
DuPont's Dr. Tammy Amos. She explained that the push toward green
building has been led by increasing energy costs and a need to design
buildings that reduce the impacts on human health and their environments.
"LEED is getting more enthusiasm and attention from the architectural
community," she said. She explained the LEED points systems
and that the two main areas for glass to gain points are the energy
and materials categories.
"Buildings use a tremendous amount of energy, so we are looking
for ways to reduce the amount used," she said.
Additional presentations from yesterday's general session included
coverage of heat processing for insulating, laminating and tempering
by Jim Gulnick of Tamglass and glass trends in the industry by Don
McCann of Viracon.
Specific topic sessions covering insulating, laminating or tempering
were available later in the afternoon.
Glass Fabrication, sponsored by the Glass Association of North
America (GANA) is taking place in Pittsburgh.