Matt Capone

If You Can Install a Thermal Break Here, You Can Install it Anywhere!

Schӧck Isokorb® has made a (thermal) breakthrough in New York City:  Isokorb ® has been successfully installed in the first thermally broken balcony in the big Apple. Schӧck USA recently received NYC DOB approvals for the Isokorb® module and now a flag has been planted in Manhattan.

In early 2012, we had the first steel thermal break connection at Fulton Street Transit station. And while Isokorb® has been installed globally, with over 10 million thermal break units, over a span of more than 20 years, a concrete thermal break project in New York City is an accomplishment in which we are proud!

The first concrete thermal break in NYC is at the Chelsea Green Development. Located at 151 West 21st Street, the project is expecting to be LEED Version 3 Gold‐certified, and is designed by Architect Stephen B. Jacobs Group and structural engineering by WSP Cantor Seinuk.


The 14 story, 74,000 sq.f concrete structure features 51 luxury residential units, and is “designed to be a better way to live, with an emphasis on wellness and the most advanced and stat-of-the-art systems to maximize energy efficiency, resource conservation and indoor air quality” states Alfa Development via

 Alfa Development chose to incorporate Isokorb® thermal break technology to enhance the energy performance of their building.

They are utilizing concrete to concrete Isokorb® modules in the balconies on the 11th thru 14th floors. The balconies are cantilevered out 7 ft , and are a standard thickness of 8″ concrete slabs.

Installation team preparing to place Isokorb® module.


Placement of Isokorb® at balcony connection.

Placement of Isokorb® at balcony connection.

Isokorb® tied off to rebar.

Underside of newly cast balcony slabs.

The thermally broken glazing system will cover the Isokorb® once installed – providing a complete thermal barrier.

Schӧck USA has been on site providing coordination assistance and support to the installation team, DJM Construction. Coordination and collaboration has been a smooth process with the design team and on site construction managers.

From the balconies are views of the newly topped of Freedom Tower to the South and the Empire State building to the North.

We are working on several other projects in New York City which have specified Isokorb® thermal breaks for upcoming projects in 2013 and beyond. We are proud to be contributing towards improving the efficiency of buildings in NYC and across the US.

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7 Comments zu "If You Can Install a Thermal Break Here, You Can Install it Anywhere!"
Seref wrote at 01-15-2013 by 8:39 am

Hi Matt, really great job and very nice project. The Big Apple
seems to get more and more like a green city…hope that thermal
bridges will be considered in all projects and other projects will
follow….congratulations to Alfa Development.

Omalawa Abdullah-Musa, LEED AP BD+C wrote at 01-24-2013 by 9:47 am

Congratulations to all involved. This is a major break though for
combating thermal bridging on NYC residential buildings. The
process for getting this product incorporated was challenging,
since it was relatively unknown and unfamiliar to most structural
engineers in NYC and the NYC DOB. Chelsea Green has set the tone
for future projects. We are looking forward to working with Schock
and spreading the word about this innovative technology.

Alex Krenczik wrote at 01-26-2013 by 6:04 am

Omalawa Abdullah-Musa, thanks for your honest feedback and
spreading the word….

Ric Panciera wrote at 02-25-2013 by 11:22 am

Great photos – helpful in explaining to engineers and contractors
what can be done.

Erik Rhodin wrote at 03-20-2013 by 9:52 am

Great info Matt. Are you now in NYC?

Howard Alan wrote at 03-29-2013 by 11:42 am

So good to see this. Chicago is way behind in building this way.
Thanks for publishing the photos.

Adam Kimble wrote at 03-29-2013 by 12:19 pm

Howard, I’m the sales manager for the Midwest area and live in
Chicago. I’m glad to say that there are some projects on the
horizon here in the Chicagoland area that will use Isokorb. With
people like yourself pushing for these changes the A/E community
will become more conscious about the affects of thermal bridging
and using Isokorb will become a standard for building design.
Thanks for you comments and if there is anything I can assist you
with I am here at your discretion.

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