MCA is part of a Zinc Coalition that was formed by IZA in the aftermath of the Washington Department of Ecology rainwater runoff project that was concluded in 2014. Misuse of the information related to zinc from the runoff report is influencing the Governor’s office and the legislative bodies.
Letter-writing advocacy, with guidance from IZA, is showing positive impacts. Several meetings have been scheduled with IZA and Coalition members to discuss the shortcomings in the runoff report and the outdated clean water regulations. MCA members that have facilities in Washington were asked to get involved in the effort. Similar issues are being seen in California, the Great Lakes region and in Canada.
We may know the start of 2014 down to the exact second, but the lines between old and new metal design and building materials will continue to blur well into the New Year and beyond. Here are two examples of how metal manufacturers are helping to redefine the true age of metal roofs in a green world.
First, let’s look to Europe where 100-year-old zinc roofs are commonplace, and in particular, at the recently renovated 120-year-old zinc roof on St. Catherine’s Church in Reutlingen, Germany. This roof restoration called for dismantling and removing all the zinc tiles from the roof in order to inspect, clean, and salvage as many as possible. Tiles that were too damaged for reuse were recycled, but inspectors found the tiles that were not exposed to the main west-facing wind and weather were nearly all reusable. The remaining roof was re-clad with RHEINZINK 0.7mm square tiles, using 1,500 PrePATINA blue-grey 330mm x 330mm tiles.
Located at the old cemetery, the Gothic Revival-style church is now preserved to its original state, circa 1890. RHEINZINK says that with the service life of zinc products expected to last 80–100 years for roofs and 200–300 years for walls, the roof tiles will be around for New Year celebrations for generations.
Stateside, a new LEED Platinum home in Glencoe, IL, features an unusual look for a LEED home—traditional rather than modernist design, allowing the home to complement its neighborhood. The standing seam metal roof was a key element of the sustainable design. About 600 sq ft of 24-gauge PAC-CLAD material from Petersen Aluminum, Elk Grove Village, IL was used. The Silver Metallic Kynar 500 coating offers high reflectivity and SRI (solar reflectance index) ratings and is Energy Star approved.
The roof provides many green features. Its shape is asymmetrically arranged to collect as much storm water as possible. It is also sloped at two different angles—a summer and a winter angle. The steeper, south facing roof supports solar thermal panels, which are optimal for the low winter sun. The shallower south facing section of the roof includes solar PV panels, which maximize electrical production during hot summer days.
“When our client said ‘give me a roof that I will never have to replace,’ we thought metal immediately,” said Nathan Kipnis, AIA, principal of Kipnis Architecture and Planning, Evanston, IL. Meanwhile, general contractor, Scott Simpson, president of Scott Simpson Builders in Northbrook, IL, says that, beyond this project, he recently used an old metal barn roof on the interior walls of a renovated—and much beloved—bakery in Evanston.
According to project architect Bob Balke of TVS Design, Atlanta, zinc was selected to replace an existing asphalt shingle roof because of its longevity and clean, authentic appearance. As one of the few metals to naturally develop a protective patina, zinc also
• promotes a lengthy structural lifespan through its ability to withstand harsh elements
• “self-heals” imperfections, which keeps the metal looking better longer
• is recyclable at the end of its useful life.
While there, be sure to note the complex roof slopes and valleys, and gutters at the prow of the roof. (Zinc gutters formed by using masked stainless steel clips conceal the gutter system.) Other notable features include the sanctuary’s exposed steel structure, structural red oak wood in the decking and ceiling, an aluminum veneer curtain wall system, and a continuous ribbon vaulted skylight.
Once inspired, it’s time to head back to the show to network with colleagues and learn more about the latest in metal. See you there!
How do you design a Chicago cultural destination that will carry out the mission of the building owner, the Poetry Foundation, to celebrate the best poetry and put it before the largest possible audience?
Certainly, it’s no easy task. But renowned architect John Ronan of John Ronan Architects, Chicago, chose to wrap much of the new Poetry Foundation Building in a black zinc perforated screenwall, fabricated by VMZinc and installed by Tuschall Engineering Co., Inc., so that, when viewed from the front, the metal building becomes transparent and invites those on the street into an open-air garden to hear poetry and enjoy a place of quiet contemplation.
The garden is an urban sanctuary of sorts—a space that, according to Ronan, “mediates between the street and the building, blurring the hard distinctions between public and private.”
Ronan said the design of the building and the use of materials, such as perforated zinc wall panels, are intended to mirror the way in which people read poetry. “Just as good poetry doesn’t always divulge all of its meanings on the first reading, the new building will engage the public’s curiosity and unfold in states,” said Ronan.
Opened in June 2011, the Poetry Foundation’s new 22,000-sq.-ft., LEED-Silver home is one of only a few public spaces in the country built exclusively for the advancement of poetry.
With the help of zinc wall panels, you’d never guess that this retail building, located in Hyde Park on the south side of Chicago, was formerly a Borders bookstore. The black and patina-blue VMZinc flat lock panels are not only versatile and extremely durable, but they add visual interest, even an edginess, to the building design, say Jim Tuschall of Tuschall Engineering Company Inc., Burr Ridge, IL, and architect Wil Bruchmann of Antunovich Associates, Chicago.
The project serves as an anchor to a revitalized retail street corridor near the University of Chicago campus. Slated to open in June, the building houses a women’s clothing store and yoga studio in the front portion colored blue, and a high-end restaurant and music venue in the black- colored back.
“I was drawn to the patinaed zinc because its color changes slightly with the time of day, weather, and seasons. Every time you look at the building, it has a whole different color that can range from gray to aqua blue to anywhere in between,” says Bruchmann. “The panels are uniform height but random lengths. Adding detail to the wall also created a dynamic transition between the two colors, which mimic the differing uses within the building.”
Bruchmann also notes the long life of zinc. “It ages well over time and is very resilient,” he says. “There’s no question in mind that this was the best product for this particular project. There’s no other material out there that could create this sort of look and feel.”