22 www.glassguides.com Architects’ Guide to Glass & Metal
Guidelines for Glass Design
Vitro Architectural Glass (formerly PPG Glass)
has published “Glass Design Guidelines,” a pock-
et-size resource that architects can use with col-
leagues, engineers, glazing contractors, glass fabrica-
tors and other building professionals when drafting
or reviewing glass specifications for building projects.
The booklet features a fold-out section that
details eight factors specifiers and design profes-
sionals must consider during the glass design/spec-
ification process, including safety, wind and snow
loads, thermal stress and surface orientation.
The guide also contains details about Vitro’s
suite of specification tools. They include a prod-
uct search tool, project gallery and a construct
tool that architects can use to configure and com-
pare custom insulating glass units, then generate
finished industry-standard three-part specifica-
tions for the products they select.
Advantages of Aluminum
for Building Enclosure
The American Architectural Manufacturers
Association (AAMA) has released a white paper
created by its Aluminum Material Council that
covers the use of aluminum in high-performing
It was published to educate and inform the
marketplace about the energy advantages of using
aluminum fenestration, and how these products
can achieve stringent code requirements.
The white paper states that aluminum extru-
sions used in the manufacture of entrances, store-
fronts, curtainwalls, windows and skylight systems
play a major role in making high-performing build-
ing enclosures more energy efficient and resilient.
Sustainability is a major topic in the paper as well.
→ www.aamanet.org AGG
Education and Resources
Course Title: High Performance Silicone Coatings for Glass
Provider: ICD High Performance Coatings
Learning Units: AIA 1 LU/1 HSW Credit
This course reviews high performance silicone coatings on glass for
glazing systems in commercial and residential applications including
The course also reviews manufacturing, technical codes, applications,
specifications and design trends for architectural glazing.
Course Title: Understanding Energy
Code Compliance and Glass Selection
Provider: AGC Glass Company
Learning Units: 1 LU/1 HSW Credit
“Understanding Energy Code Compliance and Glass Selection” covers
the reasoning behind energy codes and the code adoption process, as well
as code differences in the various climate regions of North America.
It discusses code compliance tools and methodology, and designing
with glass to meet the requirements for energy efficient buildings.
across the entire frequency spectrum,” Hull says.
“It’s important to identify the key frequencies that
will be affected in order to understand the ability of
the glazing to provide required sound attenuation.”
He adds that STC is a value intended for interior
sounds passing through a partition, whereas OITC
is a reflection of the noise outside of a building.
For Schimmelpenningh, it’s a lack of under-
standing as to what these numbers actually mean
and how they relate to acoustical glazing’s perfor-
mance. “They’re a tough thing to describe to some-
one,” she says. “When you see an STC number of
35, you likely don’t know what it means, and look-
ing at 32 to 35, it doesn’t seem much different. But
it could mean a tremendous amount of change.”
Architects and other specifiers are paying more
attention to sound attenuation, as Hull points
out, but since noise codes don’t require a specific
glazing performance, the addition of an acoustical
interlayer isn’t often a priority.
“The regulations are focused on limits to the
noise sources themselves,” he says. “For instance,
music coming from vending carts, construction
noise and other outside noise may be limited to
certain hours of the day, rather than the windows
themselves requiring a specific [acoustical require-
ment]. A building code requirement would go a
long way in advancing the use of acoustical glazing
in urban areas and specific occupancies.” AGG
In the Know
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