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By Matt Baker
It’s tempting to assume that a landmarked building like the Rookery has been preserved in architectural amber. But the world-renowned structure isn’t exactly the one that Daniel Burnham and John Root designed in the 1880s. After the turn of the century, Frank Lloyd Wright famously applied a gilded eggshell cladding to the lobby. In the 1930s, William Drummond, formerly a Wright protégé, added Art Deco elements, including bronze elevators etched with birds matching the building’s moniker. The twelfth story was largely rebuilt in the 1990s when Burnham & Root’s original office was restored.
The latest changes to the building have been subtler. Like many other historic office buildings in the central business district, the Rookery has been busy for the last several years implementing sustainable strategies that will allow it to stay relevant for the next century.
By Matt Baker
This is not just a workspace, it is a rebirth. Motorola Mobility has had a turbulent last few years; first being disjoined from the storied Motorola, Inc. to being purchased by Google and ultimately sold off to Chinese technology firm Lenovo. Amidst all this, the company moved its headquarters into a new, vibrant space in the Merchandise Mart.
By Steen Hagensen
In most boilers today, heat exchange devices, or economizers, pre-heat the incoming feed water with the boiler’s own exhaust gases to maximize efficiency. Over the years, improvements have been made to economizers that now have better heat transfer rates than ever, but it is still only very few boilers that can benefit from their installation. Atmospheric and fan-assisted boilers don’t create a powerful enough draft to force flue gases through the economizer, which makes them unsuitable for economizer installations.
By Jon Sedey
The development of the elevator opened up the discovery of skyscrapers and high-rise buildings. People, along with goods and services were able to reach new heights never seen before. “Vertical transportation” was now possible and forever changed the urban fabric. Instead of building out, cities were building up to conserve space and local resources. However, as green initiatives become an integral part of today’s development projects, elevator companies are implementing strategies to retrofit current elevators into green and attractive spaces.