The cost of replacing a roof can be one of the most significant maintenance expenses in the life of a building. USGBC’s Leadership in Energy and Environmental Design building rating program (version 4) assumes a building service life of 60 years. With most types of roofing, building owners can expect to replace the roof once or twice in that amount of time, incurring significant expense to do so.
Many buildings are The Metal Construction Association (MCA) is proud to announce a new study that verifies that coated steel roofs can last as long as the buildings they cover. The research study concluded that the expected service life of an unpainted 55% Al-Zn coated steel standing seam roof constructed today in a wide range of environments using best practices can be expected to be in excess of 60 years.
Learn more about the study here, and access the full study and executive report in MCA’s Technical Resources library.
The list of design accolades for the Redding School of the Arts in Redding, CA, is impressive. It is the first new school campus in the world to receive Platinum certification under the LEED for Schools 2009 standards, and it also is expected to achieve Net-Zero. The school is designed to achieve the Collaborative for High Performance Schools (CHPS) certification, a national movement to improve student performance and enhance the education experience by building the best possible schools.
Photo Courtesy of Steve Whittaker
The design for the school was based on two essential ideas: First, the learning environment should create opportunities to show students, teachers and parents the importance of metal sustainability. Second, students should be inspired to learn in creative, colorful and fun surroundings. To help achieve these two ambitious functional and aesthetic goals, the design team turned to Metal Sales Manufacturing Corporation.
“We were looking for metal panels with recycled content, durability and an energy-friendly SRI (Solar Reflective Index) value,” says James Theimer, Principle of Trilogy Architecture who served as architect for the project. “Redding School of the Arts has been designed to last for 100 years. With the metal wall and roof panels, I think we found a product that would live up to that challenge.”
Photo Courtesy of Steve Whittaker
All of the metal panel colors used on the school are listed with ENERGY STAR®, improving energy-efficiency and reducing the amount of energy needed for cooling. The panels also have a long life cycle that will endure the wide temperature variations of the Sacramento Valley, are 100% recyclable, and contain a high percentage of recycled material – contributing to LEED points.
The use of metal wall and roof panels helps give the facility a smart and modern look worthy of its high-profile, high performance mission.
If you’re like us, the brackets you filled out for your NCAA Basketball tournament pool were over long ago. But the tournament continues this weekend with the Final Four, and we need to find a new team to root for. Rather than picking winners by mascots or favorite location (we tried that before and it didn’t work), we thought we’d take a different approach: picking a winner that plays its games in a metal-clad arena!
Formawall Dimension Series Panels
Based on this, our pick to be cutting down the nets Monday night is the University of Louisville, which plays its home games at the KFC Yum! Center. The stadium features high-performance building technology and stunning aesthetics, thanks to CENTRIA’s Formawall Dimension Series panels and a design that focuses on transparent facades and natural lighting. The winner of an AIA Kentucky Merit Award, the new arena was completed in 2010, and has since hosted its share of major college hoops action. Conveniently, the Louisville Cardinals are the only number one seed to make it to the 2013 Final Four, so we like our odds.
Georgia Dome
Worth noting is that Atlanta’s legendary Georgia Dome is the host to this year’s Final Four. This enormous arena is a masterpiece of form and function, sporting over 200,000 square feet of CENTRIA’s Formawall Dimension Series insulated metal panels for the best in advanced thermal and moisture performance (ATMP®). The current home of the NFL’s Atlanta Falcons and the former home of the NBA’s Atlanta Hawks, the Georgia Dome is among the largest domed structures in the world and a staple in the landscape of global athletics—from the 1996 Olympic Games to the legendary Super Bowl XXXIV. Of course, it’s also the home of the 2013 NCAA Final Four!
Regardless of the winner, we’re sure there will be some exciting basketball. We’ll be tuning in to see how our prediction unfolds.
In honor of St. Patrick’s Day, the Metal Construction Association (MCA) has decided to celebrate our favorite metal green buildings; figuratively and literally. MCA—and its members—embrace the green construction movement, and support sustainable and energy-efficient products. Here is a list of some green projects we hope you will find interesting and inspiring.
Coined “the office of the future”, the Pixel Building is the first carbon neutral office building in Australia, and has received the highest Green Star rating ever awarded by the Green Building Council of Australia. With striking, multi-colored metal MCM panels from Alpolic on the exterior, the building is sure to grab the attention of passersby.
GoodFellow Air Force Base, Texas
Goodfellow Air Force Base, San Angelo, TX
No, this Department of Defense facility is not olive drab, but the project earned a place on this list because its recent metal-roof retrofit includes integrated renewable energy technologies that will maximize electricity generation. The roof also has a rainwater capture system that will be used for irrigation purposes on the base.
A true American icon, the Empire State Building is bathed in green lights for St. Patrick’s Day. In 2012 the building was outfitted with a new, energy-efficient LED lighting system that will make this year’s St. Patrick’s celebration even more green. Find out when you can view tower’s lights with their schedule.
This month Grand Central Terminal in New York City is celebrating its 100th birthday. The iconic landmark has been a transportation hub for generations of travelers and commuters, and a destination for tourists and visitors looking to get a flavor for the Big Apple’s history.
I had the good fortune of working several blocks of Grand Central for several years prior to joining the Metal Construction Association, and often visited it to grab a bite for lunch, meet a friend who was coming to town, or just to enjoy the beauty of the main concourse.
While the main concourse is stunning, and on each visit I would notice for the first time architectural details that I had never noticed before, I always found Grand Central’s copper roof to be striking. With its green-patina and ornate details, it seemed to be the perfect crown for one of the city’s most impressive landmarks.
But after spending time with MCA, I now have a greater appreciation for what that roof represents. It’s not just a beautiful architectural detail, but it’s also a high-performance feature that helped the building stand the test of time. The original roof, installed in 1913, was recently replaced with a new copper roof as part of a recent renovation, even though engineers determined that it was still serviceable almost 100 years later. That’s something that the average person might take for granted, or not fully appreciate. But not only did the copper roof look great, it performed well for nearly a century.
The United States Department of Defense (DOD) is a leader in energy efficiency for good reason—it is mandated to reduce energy use on its properties by 30% by 2015 and by another 37.5% by 2020. Three years ago, a team of leading metal construction companies and the Metal Construction Association (MCA) were awarded a $1 million grant to develop a retrofit metal roof system for a DOD building with integrated renewable energy technologies. Today, Goodfellow Air Force Base in San Angelo, TX, boasts a retrofit metal roofing system that integrates a host of solar energy-saving technologies and the ability to capture rainwater for irrigation purposes. View the case study of the project for more complete information.
The Department of Energy’s Oak Ridge National Laboratory (ORNL) is monitoring the building’s temperature and heat information. According to Scott Kriner, MCA technical director, both the DOD and the project team “are confident that this integrated retrofit roof system will perform as predicted and allow for the technology to be transferred throughout the DOD, to other federal agencies, and into the commercial-building sector.”
ORNL should be completing a year-long study of the building’s energy data in 2013 to quantify the impact of the metal roof retrofit project. Stay tuned–we will post more information to this site as it becomes available.
If anyone understands long-term life cycles, it’s a cemetery owner. I know one in St. Louis, MO, who owns two large, old mausoleums that stand side by side. One mausoleum has steel and copper roof systems that have remained relatively maintenance- and repair-free—and beautiful—for as long as 80 years. The other mausoleum has a flat-roof addition, built in 1986, which has a conventional roofing system that has been plagued by leaks for decades.
After determining the life-cycle costing and return on investment on the two roofs, it’s not surprising that the owner decided to retrofit the flat-roof addition with a metal roof. He anticipates far fewer worries with a metal roof, given its ability to shed rainwater and its 40- to 60-year service life.
In addition to its longevity and durability, metal retrofit also offers long-term cost-savings in the form of appreciable value of the building, better insurance rates, and energy-efficiency. Adding insulation to a metal retrofit can provide R30 thermal resistance—one reason why you increasingly see them on military and municipal buildings, including schools. Many building owners choose to add renewable solar energy technologies to these roofs, such as photovoltaics or solar hot-water systems, which can reap huge tax benefits.
For designers and architects, metal retrofits add generous curb appeal to buildings. Architectural metal roofs are meant to be seen, and a stunning sloped metal retrofit is seen far and wide—and well into the future.
In a recent presentation at METALCON in Chicago, IL, Peter Pfeiffer, FAIA, principal, Barley & Pfeiffer Architects, Austin, TX, discussed some commonsense ideas for building and living green. Pfeiffer, a pioneer in green building who owns “the greenest house in America,” stressed the cost-effectiveness of conserving energy in simple ways, such as adjusting your sprinkler system, placing your electrical panel on an interior (instead of an exterior) wall, and having your roof act as a shading umbrella.
“A roof should act as a shading umbrella,” Pfeiffer said. “R-value means little if the house leaks, the windows are unshaded, or the roof is a dark color.”
“Don’t underestimate the value of discussing the obvious,” said Pfeiffer. “R-value means little if the house leaks, windows are unshaded, or the roof is a dark color. This is obvious stuff.” He added that sensible green building is “smarter and better” because it results in “reduced consumption of stuff,” such as energy, water, and nonrenewable materials. This type of building also improves health and indoor air quality.
Pfeiffer stressed that producing your own power is expensive. “Shading windows is better than adding [high-maintenance] solar roof panels. Light-colored metal roofs with broad overhangs that shade windows save money and are easier to maintain.”
How do you accomplish green building? Pfeiffer stated,“Keep it simple and rely on smart, thoughtful, climate-sensitive design.” He said that gizmos and complex things break, and are expensive and time-consuming to fix. Instead, make practical changes to your house, such as using Energy Star dishwashers, low-flow showerheads, and less hot water (instead of buying a fancy water heater). Also, don’t use dark roofs in the South.
Pfeiffer is a proponent of cool metal roofing/ASV ventilation. Unlike conventional roofing insulation, ventilation makes the roof last longer because it doesn’t lock in moisture. A Galvalume metal roof with an airspace underneath keeps heat in the house, he said, and a metal roof costs more than shingles, but it provides long-term cost savings on energy and insurance.
Solar radiation is a “big, powerful thing—and it’s uncomfortable. You need overhangs. Retrofitting with window awnings cuts air conditioning loads by a third by reducing radiation.”
My daughter just started kindergarten this fall, and picking her up from school each day often reminds me of my days in grammar school. The brick-walled schools that I attended years ago are still in use today (they seemed so much bigger back then), and still providing students with a great environment in which to learn.
But just as I am reminded that every year I am getting older, there are reminders that the country’s thousands of school buildings are aging, too. Many are being replaced with new, state-of-the-art schools, and many more are being retrofitted to make them current with the latest education, technology and energy standards.
William Allen High School, Allentown, PA
And with more frequency than in the past, those familiar brick walls are being upgraded and replaced with new, energy-efficient metal walls and roofs. Take, for instance, the Metal Construction Association’s newest case study on the William Allen High School in Allentown, PA. The school—originally constructed with brick masonry—had outgrown its existing space, so they built a new addition on an adjacent lot. The exterior of the new building is a combination of brick and metal panels, with the majority of wall surfaces being insulated metal panels (IMPs).
The metal complements the brick aesthetically—a trend that we are seeing more and more of—and it helped the new building attain LEED gold certification. Not only are the IMPs energy-efficient, but the added benefit of quick installation (IMPs allowed the building to be enclosed with insulation and the finished panel in one shot) made them an ideal choice for this project.
Today’s metal roofs provide far more than just protection from water intrusion; they now add visual beauty, style, and personality to a building—and then some. This is particularly true with steep slope metal roofs, those with a 3:12 or greater pitch. Some of these roofs can cover as much as two-thirds of a building’s exterior, providing a broad canvas on which to make a visual statement.
For property owners, choosing an attractive roof that enhances a building’s overall design is critical. There are many options of metal roofs from which to choose. Standing seam metal roofs offer clean, straight vertical lines. Numerous through-fastened profiles provide a more fluted or corrugated look. Then, there are metal roofs specifically designed and manufactured to look like wood shakes, slate, barrel tile, and even dimensional shingles. With these options and advances in coating, we can safely bid farewell to those monochromatic, heavy-looking metal roofs of yesteryear.
But, as you know, beauty is more than skin deep. There are other advantages to steep-slope metal roofing, including its
Low Weight. Metal roofs typically weigh from 50 to 125 lbs. per 100 sq ft. Aluminum metal roofs are typically the lightest, while steel and copper roofs, at about 125 lbs. per 100 sq ft, are about one-third the weight of standard shingles.
Wind Resistance. The uplift pressures exerted on steep slope metal roofs can be significant during heavy windstorms. Due to their fastening methods and often interlocking nature, metal roofs hold on tight, even in heavy winds.
Lower Installation Cost. Labor costs to install roofing are increasing annually—and, according to some research, are expected to double every 10 years. With very steep or geometrically complex metal roofs, labor can represent a significantly large part of the entire roofing project, even more than the roofing material itself. For that reason alone, it makes good economic sense to choose a durable, lasting metal roof and follow the adage, “Do it right. Do it once.”
Think of metal roofing as a building upgrade that adds property value, beauty, comfort, efficiency, protection, and freedom from maintenance. Contact MCA for more information on metal roofing.
MCA Board Chairman Todd Miller is president of Isaiah Industries, Piqua, OH.
Metal Construction Association Blog 