The rustic bands  
of metal that wrap  
the south and west  
sides of the building  
consist of more than  
100,000 square feet  
of custom-fabricated  
metal shingles.  
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The arena features more  
than 30,000 square feet of  
cold-bent curtainwall glass.  
Making  
Bends  
Meet  
Vegas Arena the ‘Ultimate Collaboration’  
from Conception to Completion  
he Las Vegas desert is hot, but one brand new Sin City building is cold—at  
least in one respect.  
T
The recently completed T-Mobile Arena dons a shiny façade featuring  
more than 30,000 square feet of cold-bent curtainwall glass, a unique application  
in which an insulating glass unit (IGU) is bent onsite into its final installed posi-  
tion.The T-Mobile curtainwall is the first known cold-bend project to be executed  
at such a large scale in the U.S.  
Typically, curved glass is manufactured from float glass that’s heated and  
formed in a curved mold,” says Gary McQueen, architectural design manager for  
Pedricktown, N.J.-based J.E. Berkowitz (JEB), which supplied the glass.“Because  
cold-formed glass is bent at the jobsite, it saves time, energy and money.”  
It also comes with extensive upfront work by virtually everyone involved in  
the glazing supply chain, as well as the contractors hired to install it.And for this  
application, the project team wasn’t about to just roll the dice.  
The Look  
Designed by the architectural firm Populous located in Kansas City,the building  
incorporates an outward-sloping, elliptical glass façade with a 9,000 square-foot  
LED mesh overlay. The glass elements are complemented by a distinctive metal  
skin encompassing a multi-colored mosaic pattern to resemble the landscape.  
Gary, Ind.-based Crown Corr installed the JEB-fabricated glass, as well as hun-  
dreds of thousands of square feet of metal cladding, panels and shingles that  
make up the rest of the enclosure.  
[The building] tells a cohesive story about the city and its contrasting influ-  
ences through a dynamic design,” according to information from the architect.  
“With the desert and Spring Mountains directly to the west,and the pulsating Las  
continued on page 58  
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October 2016 | USGlass, Metal & Glazing  
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Mconatikniunegd fBroemnpdasge M57eet  
from 2-D drawings, and it wasn’t until  
we went down to Populous’ offices in  
Kansas City,where we were able to look  
at the 3-D model, that we really knew  
what the geometry of that leaning  
curved wall was,” says Niepokoj. “… I  
think where we enhanced it the most  
was really just proving to the team that  
we could actually build it.”  
To set in the lites, the glaziers inserted  
the base of each unit into the frame,  
followed by one of the upper corners.  
They then pushed the last corner into  
its twisted, cold-formed final position.  
Crown Corr project executive Brent  
Reynolds says every lite of glass, cur-  
tainwall and panel are supported by  
structures designed by his company,  
which is also the engineer of record for  
the enclosure. He says the joint work  
between his group and the designer  
was among the most cohesive he’s seen.  
“It was the best collaborative effort I  
think we’ve had with an architect,”says  
Reynolds.“On this project,we can truly  
say we were on the same team.”  
And the teamwork between the glazier  
and architect was only the beginning.  
The Glass  
JEB supplied approximately 2,500  
IGUs—a bulk of which were trapezoi-  
dal in shape—encompassing 34,000  
square feet of glass that was installed  
in curtainwall by Oldcastle Building-  
Envelope®.  
Specifically, the Winduo IGUs from  
JEB featured quarter-inch SunGuard  
SNX 51/23 low-E glass by Guardian  
Glass North America, a half-inch JEB  
3
clear heat-strengthened glass.  
Seal warm-edge spacer and half-inch  
The IGUs, using Quanex’s Tri-Seal  
technology, were captured in clear an-  
odized aluminum extrusions to mini-  
Vegas Boulevard to the east, the arena panels by Centria, which are visible on mize thermal heat transfer and reflect  
design captures these juxtaposing fac- the interior.  
ets and melds them into an authentic  
the intense heat from the desert sun.  
Prior to being awarded the project,  
JEB did extensive planning and test-  
expression of the city’s drama and ex- A Cohesive Effort  
citement while showcasing the spec-  
tacular surrounding landscape.”  
Crown Corr was awarded the job in ing to ensure the glass would stand  
August of 2014, but vice president of up to the application. The fabricator  
To bring this concept to life,Populous sales Tom Niepokoj says his company collaborated with two-part sealant  
drew up the expansive glass façade on had worked on budgets with the con- supplier Dow Corning, Quanex and  
the arena’s northeast side that includes tractor, Hunt-Penta Joint Venture, for Guardian to study the long-term im-  
the LED overlay. More than 100,000 roughly a year prior to that. The build- pact of cold-bending in its IGUs. JEB  
square feet of custom-fabricated metal ing enclosure contractor then spent also worked with Architectural Testing  
shingles by A.R.J. make up the rustic approximately six months in the de- (ATI—now Intertek) in York, Pa., to  
bands of metal that wrap the south sign-assist phase before construction understand the loads and stresses ap-  
and west sides of the building. These began in early 2015.  
are backed by insulated composite  
“The original budgeting was done  
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plied to the units. Finally, the findings to assist with the project. Lingnell had ical side,” says Lingnell, “to determine  
were sent to an independent engineer worked with JEB and Quanex on engi- whether it would work by the numbers.”  
for finite element analysis.  
neering analysis issues in the past, so  
all members of the group were com- cation is unique and dependent on the  
fortable with one another. glass’ thickness, treatment, size, the  
The fabricator initially sent Lingnell degree of the bend, construction of the  
Lingnell says each cold bent appli-  
Teaming Up  
This project was the ultimate col-  
laborative effort from the supply chain drawings and information about the IGU and the glazing system into which  
standpoint,” says JEB president Arthur application, with which he conducted it will be placed.One thing they all have  
Berkowitz.“We’ve worked on many col- structural analysis and an engineering in common, however, is the nature of  
laborative projects in the past, but this review. There was also physical testing glass itself.  
took it to a whole new level.”  
JEB called on veteran industry con- back up the data.  
sultant and glass engineer Bill Lingnell  
“I was more involved on the analyt-  
and engineering work done at ATI to  
“What’s interesting about glass is  
continued on page 62  
From the Inside  
On the interior of the T-Mobile Arena, Giroux Glass installed  
more than 40 suite-level custom laminate glass doors, VIP  
lounge and doors, two concourse sliding door systems, event-  
level glass corridors and storefront for the NHL locker room and  
lobby retail area.  
Giroux project manager Doug Bade says the biggest challenge  
from his perspective was coordinating Giroux’s scope of work  
with the adjacent trades—framing, drywall and tile contractors—  
to ensure the custom patterned glass doors and sidelites fit  
every single suite door opening.  
I’m proud to say, because our field crew worked closely with  
the other trades, we didn’t have to re-order any of the custom  
doors or side lites for the project,” he says.  
Pulp Studio supplied backpainted laminated glass sidelites  
and doors on the high-end suite level, and Skyline Design sup-  
plied custom, frit-patterned glass doors in the bunker suites.  
C.R. Laurence provided hardware for the exterior ticket windows,  
and PRL supplied door glass and hardware for the VIP doors.  
Trulite fabricated the glass in the first floor retail space, as  
well as acid-etched glass in the security and A/V room upstairs.  
Capitol Doors provided auto sliding glass doors in the NHL locker  
room, NGI fabricated the bronze mesh laminated glass in the  
bunker suites and Arcadia supplied aluminum storefront.  
I have lived in Las Vegas for 30 years, and to be part of build-  
ing and finally bringing a major league sports franchise to town  
is a pretty cool feeling,” adds Bade.  
Giroux also installed curtainwall, entrance doors, automatic  
doors and solar tubes to the MRI Park plaza entry that leads  
from Las Vegas Boulevard to the new arena. For that scope of  
the project, Kawneer supplied storefront doors and curtainwall,  
and Stanley was called on for the ADA auto door hardware.  
Sunstone Skylights provided solar tubes, and Triview supplied  
laminated glass for the doors, sidelites and overhead glass.  
Giroux Glass has played a big part in the New York New York  
exterior remodel over the past few years, and the MRI Park proj-  
ect was the final piece to the puzzle,” says Bade. “This project  
was unique because of how it links the new T-Mobile Arena to  
the Las Vegas Strip.”  
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Most lites of glass for the project  
were trapezoidal in shape, and each  
unit is unique.  
that, from an engineering standpoint, high level of stress.Analysis of the glass properly in place for the project.  
it is perfectly elastic,” he says. “It has used for the project determined that, “All of the components were simu-  
perfect memory.If you have a load on it with all the components considered, it lated in the lab, where they measured  
and then let it go, the glass wants to go stayed well below the allowable stress the stress on glass, sealant and spacer,”  
back exactly the way it was.That means levels.  
says Jeff Emerich, territory sales man-  
Joe Erb, commercial sales specialist ager at Guardian.  
Emerich says that along the way, it  
that there is stress in the glass with a  
cold bend.”  
for Quanex, says his company’s Triseal  
He adds that glass doesn’t have a product was used for a variety of rea- was crucial that Guardian consult with  
yield point, but it has a breaking point. sons, including its flexible spacer con- its experts at its Science and Technol-  
The stress put on the glass doesn’t struction that helps reduce edge seal ogy Center and successfully demon-  
just come from the bend, however.  
stress. strate to the architect and building  
You’re also going to add extra stress  
“This product forms very nicely to team it could deliver high-perfor-  
with other components such as wind- the shape of the glass,” says Erb.  
mance, low-E glass that would with-  
load, building movements, thermal The silicone-based spacer adds a stand the cold-bending process.  
loadings and erection tolerances,” he UV-resistant component and long- “Because we had to go through all  
says. “And you have to consider how term durability. These are key char- this testing and engineering, everyone  
the stress affects the glass in the short acteristics that made it ideal for the in our supply chain performed beyond  
and long term, whether it’s tempered project. Additionally, it was applied the call of duty from timeline stand-  
and/or laminated, etc. That’s why you through a fully-automated process, point,” says Berkowitz.  
have to do this special engineering which Erb says“promotes consistency.”  
For the project, Oldcastle Building-  
analysis. There’s not a chart I can go to Erb also lauded the collaboration Envelope® supplied 44,000 square feet  
if you bend this specific piece of glass among the project team. “It was really of its Reliance curtainwall, as well as  
or that specific piece of glass. Each one nice to be able to work collaboratively wide stile doors—60 singles and nine  
is unique.”  
with the glazier,glass supplier and other pairs. The fully fabricated products  
Other factors considered in testing component suppliers to have these dis- were shipped to the job site for field  
include the impact of the load in the in- cussions and have questions answered assembly.  
sulating glass seals and how the sealant right on the front end,”he says.  
The Oldcastle the system features  
is affected. Quanex and other players involved a complex design using segmented  
In this case, the glass was heat- helped set up the physical testing phase  
treated, which allows it to withstand a that further ensured everything was  
continued on page 64  
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Cutline  
framing members to account for nu- site was making sure everything went Vaslpar’s Fluropon Classic II product  
merous radius construction. It also smoothly from a logistical standpoint. in nine colors, and the whole wall sys-  
includes specialty anchor conditions “Every lite we installed was different, tem is backed by 140,000 square feet of  
to tie the curtainwall framing back to so it was critical to make sure every- Centria’s MetalWrap Long Span Series  
the building structure, as well as pro- thing was crated and labeled correctly panels. Crown Corr also installed an-  
vide secondary support for the digital so we had the right piece of glass there other near-50,000 square feet of Cen-  
mesh LED board.  
when they needed it,” he says.  
Crown Corr installed another 5,000  
tria panels.  
The unique, bowl shape design  
with numerous radius changes made square feet of entrances and store- Finished Product  
T-Mobile a very challenging project,” fronts, and parallel to the glass instal-  
Completed in April 2016, T-Mobile  
says Michael Lowe, facility manager lation, it was simultaneously installing Arena is expected to earn LEED Gold  
at Oldcastle’s Terrell, Texas, location. steel framing backup for the entire certification from the U.S.Green Build-  
Oldcastle BuildingEnvelope®’s digi- metal cladding façade, which con- ing Council. The venue will be home  
tal engineering capabilities and cus- sisted of copper and silver perforated to the National Hockey League’s new-  
tom-engineered curtainwall design panels. est franchise, which will begin play in  
came together to support the on-time “We had sheet metal workers doing 2017, and host a variety of events, in-  
completion of a complex building en- the metal panel installation; iron work- cluding concerts, award shows, boxing  
velope project.”  
ers, glaziers and composite crew doing matches and more.  
the glass and curtainwall installation; Reynolds says “the project speaks  
The Installation  
and carpenters doing the stud framing for itself,” but the teamwork involved  
The IGUs arrived at the jobsite in flat and backup system for the panels,”says all the component players.  
trapezoidal shapes. Crown Corr was Reynolds.  
“The collaboration was of the utmost  
tasked with cold-forming each lite into  
“One other major challenge was ac- importance on this project. Getting ev-  
its own unique shape by hand.“They’re cess,” he adds. “The building is so tall eryone in one room was definitely a  
all different,” says Reynolds. “No two and required a 135-foot-boom at some very important step. JEB was integral  
IGUs are the same.”  
To set in the lites, the glaziers in- site at the same time.”  
locations. We had several of those on- in this. We spent months together on  
the project.” n  
serted the base of each unit into the  
The inward and outward lean  
frame, followed by one of the upper of the building, elevations and the  
corners. They then pushed the last cor- variety of glass put a premium  
ner into its twisted, cold-formed final on logistics. “Even with the metal  
N i c k S t . D e n i s is an  
position.  
panels, we had to plan so much, as  
In other words, three corners of we crated them by color.”  
Approximately 130,000 square  
feet of custom-fabricated metal  
assistant editor for USGlass  
magazine. He can be reached  
at nstdenis@glass.com.  
each lite are in plane, while one is  
twisted out of plane,” says Reynolds.  
He adds the biggest challenge on shingles by A.R.J. were coated with  
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