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hen we think about only because of a desire for aesthetics, els by 2020 for residences and by 2030  
advances in façade but also to meet higher performance for commercial buildings.  
products and de- requirements.  
signs, storefront and  
“State policies are going to reshape  
the energy standards dramatically over  
the next few code cycles,” says Wooten.  
The trend toward designing for ther- “California has always been known for  
W
entrance systems may not first come Energy Awareness  
to mind. However, like other commer-  
cial glazing markets, this segment has mal performance continues to grow. A creating trends and forging new paths  
also become exceedingly advanced lot of this stems from the Golden State’s and is also well known for leading the  
and complex. The same architectural stringent energy codes. According to way in creating and implementing new,  
trends and developments taking shape Ronald Wooten, director of product aggressive energy codes. California’s  
on high rise towers and monumental testing and certification for Los Ange- 2016 Energy Standards, commonly  
structures are also emerging on seem- les-based C.R. Laurence Co. (CRL), the known as Title 24, were implemented  
ingly simple storefronts and entrances. state has set a goal that new building on January 1, 2017. They are no excep-  
Many are chosen by designers not standards achieve net zero energy lev- tion and are among some of the most  
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When the DC Group renovated and expanded its offices in  
Minneapolis it used Tubelite systems, including T14000 I/O  
storefront, to help blend new and existing structures that  
would reflect the high-tech company’s brand.  
FRONT  
by Ellen Rogers  
this Ever-Changing Market  
stringent in the nation. Many states a hot topic across the U.S.,”agrees Terry  
“I know they’ve been around for  
eventually will follow California’s lead Carespodi,national sales manager with some time, but now with more strin-  
and adopt similar codes.”  
YKK AP based in Austell, Ga.“As codes gent energy codes, every little bit helps  
Andrew Haring, vice president of change, we’re seeing thermal trends in in their [architects’] thermal models,”  
marketing for CRL,adds that architects Texas,Arizona,California,and in states he says.  
seek to maintain minimal sightlines for where, historically, systems may have  
aesthetics.  
Gary Sprague, vice president of de-  
only been made with insulating glass.” sign with CRL,adds there are a number  
Contract glaziers also are seeing of considerations to remember when  
The thought of specifying perfor-  
mance at the expense of aesthetics more interest in thermal performance. designing for thermal performance.  
keeps many architects awake at night,” Marty Richardson, sales manager with  
“Most manufacturers are designing  
he says. “Our R&D teams are tasked Metropolitan Glass in Denver, says he’s high-performance doors to satisfy en-  
with engineering systems that will sat- noticed more willingness to specify ergy codes’ prescriptive path, rather  
isfy energy codes and design intent.”  
and retain in the scope the use of ther-  
continued on page 60  
September 2017 | USGlass, Metal & Glazing  
Thermal performance is definitely mally broken storefront doors.  
www.usglassmag.com  
59  
ScontiTnueOd fromRpagEe 59FRONT  
than traditionally used.”  
Becks wonders if it’s been the “Apple  
effect” that’s been driving architecture  
toward larger and larger sizes of glass.  
“Clearly, the retail concepts starting  
with the Apple store on 5th Avenue and  
then other various retail stores across  
the globe gave architects free rein to  
dream of transparency as the largest  
driving factor,” he says, adding that he  
hasn’t really seen the door industry  
evolve as quickly as other aspects of  
the storefront façade.  
“I often fight outdated technology  
in frames and hardware. Perhaps this  
is restrained by code compliance,” he  
says. “However, architects clearly feel  
restrained and where possible have  
begun to import European opening  
systems at great expense and difficulty.”  
Also speaking of the increasingly  
larger sizes of glass, Richardson says  
designers are trying to push the limits  
The CRL-U.S. Aluminum Entice ultra-narrow thermal entrance system was of storefront capabilities structurally.  
designed to combine all-glass aesthetics with full-frame thermal performance.  
“Due to budget constraints, they use  
storefront in lieu of curtainwall,but they  
than taking advantage of various area components of the storefront (and want larger glass and taller storefront  
weighting calculation methods. These curtainwall) framing systems need frames. Certainly manufacturers’ 6- or  
doors perform well, but are in most to support the additional weight and 6 ½-inch storefront systems help in that  
cases more than 1 ¾-inch thick, which potential movement of the glass,” says regard.”  
creates hardware compatibility prob- Mary Avery,vice president of marketing  
Ivan Zuniga, architectural sales  
lems along with an inability to upgrade with Tubelite Inc. in Walker, Mich.“This manager with YKK AP, adds that in  
existing entrances affected by code includes choosing appropriate profiles many commercial buildings, lobbies  
changes,” he says.  
or systems to meet the requirements, and entrances are now being designed  
Wooten adds that many states now such as heavier wall thickness, deeper with taller spans “and we’re seeing the  
require NFRC label certificates for profiles, steel reinforcing, and using use of storefront throughout the build-  
the fenestration, so it’s important to curtainwall framing members for store- ing, in punched openings, etc.”  
find out early in the bidding process front applications when appropriate.”  
whether this is a requirement.  
plans meets or exceeds the energy  
Carespodi agrees that they are defi-  
nitely seeing larger pieces of glass and  
Make sure what’s specified on the Bigger, Bigger and Bigger taller storefronts. “And much of that is  
Paul Becks, executive vice president of from the perspective that the storefront  
performance requirements. Get your National Enclosure Co.inYpsilanti,Mich., cost is less than a curtainwall product.  
architectural metals supplier involved says it seems as if everyone is getting in Once you’re at the12-foot mark,you start  
early in the process, not only for a quo- on the bigger-is-better bandwagon.  
tation but for creating NFRC thermal  
“For many years the plate glass  
to see the trend toward curtainwall.”  
Carespodi has also started to see ar-  
performance bid reports in order to storefronts with giant lites of mono- chitectural requirements for the use of  
verify the project’s fenestration meets lithic glass were exclusive to the fa- storefront in openings higher than the  
the code requirements,” he says.  
cades on Fifth Avenue in New York or first floor of a building. The success of  
Another trend that’s also affecting the Miracle Mile in Chicago, driven by moving these materials higher up the  
storefronts and entrances is the de- a mindset that impact was far more building, he adds, depends on proper  
mand for larger and larger openings important than cost and energy effi- installation.“That’s critical because de-  
and spans of glass to fill them.  
ciency,” says Becks.“A modern trend is sign pressures,loading and wind speed  
As building owners, occupants and clearly developing where architects are all increase as we climb the building.”  
architects desire larger openings and doing their best to achieve visual im-  
larger spans of glass, the design and pact by using dramatically larger glass  
continued on page 62  
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The design of the Orlando Police Department originally called for curtainwall. The architect and YKK AP America  
collaborated to redesign every opening for storefront, resulting in a similar aesthetic and a cost savings per opening of  
approximately $30 per square foot.  
With the construction industry chal-  
“We’ve seen a lot of customers and with those products and not sacrifice  
lenged to find quality labor,many com- manufacturers looking for ways to di- those structural requirements you have  
panies are going to pre-assembled or versify and increase their use of vinyl with aluminum.”  
unitized products for easy installations. products in areas where it’s not typically  
He adds,“Once you start taking away  
As Avery points out, pre-assembled used,” says Eric Thompson, national ac- reasons not to use it, you see it’s a cost  
products are easier for glazing contrac- count manager/product sales specialist -competitive and attractive option.”  
tors to install, which saves labor, time for Quanex Building Products. “Where  
and associated costs.  
a traditional storefront system was used Even More Options  
before, customers are now looking for  
In addition to energy, aesthetics and  
Easy Installation  
ways to use their [vinyl] products in those improved installation, there are some  
Also, the industry is seeing a higher areas of the building. We’re seeing more other areas of growing interest and  
turnover and recent struggles with staff- of an acceptance of alternative framing development.  
ing, which has caused a decrease in ex- coming into the commercial world.”  
“Building owners and architects are  
Joe Erb, commercial sales specialist focused increasingly on resilient build-  
perience and skill level—especially in  
field labor,” she says.“[With pre-assem- also with Quanex, says one reason for ings that help protect people and prop-  
bly] it’s easier and less expensive to ad- the growing acceptance of alternative erty during severe weather.In addition,  
dress potential challenges in the shop.” materials is that system fabricators are more building owners are considering  
The drive toward these systems,how- being asked to provide higher perfor- options for higher security at their  
ever, isn’t a trend that’s developing in mance numbers.  
entrances and throughout their build-  
all areas of the country. Richardson ex-  
“There’s a lot of creativity in the ing façades,” says Avery. “Additional  
plains,“While unitized/pre-glazed prod- market,and storefront is no exception,” preliminary testing or analysis by a  
ucts make sense in a tight labor market, says Erb, explaining that demand from third party is necessary to ensure the  
ours is still primarily a stick market. customers is driving vinyl to become storefront, entrance and other systems  
There are a handful of unitized projects, higher and higher performing. “As will meet the associated performance  
but they don’t happen with the regular- storefront [as a whole] moves to ther- requirements. Some projects also have  
ity of larger markets, such as the East mally broken, higher-efficient, unit- field testing after installation to vali-  
Coast,West Coast and much of Texas.”  
ized, etc., I think the way alternative date performance as specified.”  
materials fit in is through the charac-  
In addition,some storefronts are also  
teristics they provide … including bet- incorporating decorative and specialty  
products to create visual interest. Turn  
Thompson adds that vinyl products to page 52 to read more about one re-  
More than Metal  
Aluminum systems constructed ter thermal performance.”  
with or without a thermal break rep-  
resent the majority of storefront sys- can help achieve good thermal values. cent project that does just that. s  
tems constructed in the U.S.According In some cases, he says, alumi-  
to the AAMA 2015/2016 Study of the num manufacturers are reduc-  
U.S. Market For Windows, Doors and ing the amount of aluminum  
Skylights, aluminum systems made in the framing while increasing  
up approximately 98 percent of all the engineered polymers for ther-  
storefront products produced in 2015. mal insulation. “That becomes  
Interest is emerging, however, in some costly,” he says. “Vinyl can step  
E l l e n R o g e r s is the  
editor of USGlass magazine.  
Follow her on Twitter @  
EllenGRogers and like her on  
Facebook at usgellenrogers to  
receive updates.  
other alternative materials.  
in and be more cost-competitive  
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