Snap - August/September 2011 - (Page 27)
$ = value, $$ = mid-range, $$$ = high-end
Top It Off
manufacturer: Certainteed performance: Meets California Title 24
requirements for thermal reﬂectance and emittance; Energy Star–rated price range: $$ applications: Using an innovative reﬂective particle in its design, Landmark Solaris shingles oﬀer cool-roof performance with the look of traditional asphalt shingles.
in recent years, the roof has evolved beyond a simple sheltering element to an active (well, actually passive, if you’re going to get technical about it) mechanical system that can contribute to energy production or oﬀset energy consumption. Which is not to say that aesthetic roofs are no more — it’s just that you can have it both ways. The 31,000 square feet of standing-seam metal roof that covers the Lafayette Library and Learning Center (right) does just that. Speciﬁed by Killefer Flammang Architects not only for its durability and economy, the panels are also recyclable and have a solar reﬂectance of .34 and a thermal emittance of .82. —Leslie Clagett
appropriate to their California location, these Vertical Seam 24 roof panels
manufacturer: LiveRoof performance: 100% postindustrial
polypropylene base suitable for LEED credit; limited 10-year warranty price range: $$ applications: RoofStone 1' x 2' pavers have built-in pedestals, simplifying installation as rooftop walkways or patios. In 4" and 6" depths that integrate with the manufacturer’s pre-planted green roof modules, they are available in six colors.
from Metal Sales Manufacturing form a deep, low-pitched, Craftsman-style eave.
Speciﬁcations Manager Associate Boora Architects Portland, Ore.
“Roofs consume large amounts of material and play a major role in a building’s performance. For low-slope applications from a sustainability perspective, I like a green (or garden) roof. It provides substantial membrane protection, increasing its longevity. Other pluses are improved energy performance, rainwater control, and a reduction in the heat-island eﬀect.”
“Progress in green roof technologies over the last decade has led to the transformation of them from an intriguing idea to a practical and economically feasible aspect of modern design. In addition to the economic and environmental beneﬁts, green roofs have given designers the opportunity to turn once-forgotten spaces into new opportunities for public zones.”
Partner Lake | Flato Architects San Antonio, Texas
Vice President ForrestPerkins Washington, D.C.
“It’s no surprise that light-colored, reﬂective surfaces heat up less in the sun. That translates into less solar-generated cooling loads for buildings that have white, reﬂective roofs. It can also mean lower ambient temperatures outside those buildings, because dark roofs and pavement heat the outdoor air, contributing to the urban heat island eﬀect.”
roof panel manufacturers to watch
berridge metal roof + wall panels metal sales manufacturing corp. varco pruden buildings inc. petersen aluminum corp. centria
source: page views from sweets.com 22 20 18 16 14 12 10 8 6 4 2 0
spec rates within the top 3 regions
photo credit: courtesy the manufacturers
pemko mfg. co. national guard products inc. 4 out of 5 zero international inc. mCkinney Number of homes roofed rixon speciality door controls with asphalt shingles.
source: page views from sweets.com 7/10–8/10 source: asphalt rooﬁ ng manufacturers association
manufacturer: SolTech Energy performance: The system produces
300-500 kWh per square meter per year. price range: $$ applications: These glass rooﬁng tiles are part of a passive energy-generating system that relies on solar-warmed air and water to power a residential heating system.
pemko mfg. co. national guard products inc. 25 percentinc. zero international mCkinney The typical percentage of recycled-materialrixon speciality door controls content of metal roofs.
source: page views from sweets.com 7/10–8/10 source: metal rooﬁ ng alliance
2008 2009 2010
= eco-friendly attributes
2007 2006 ■ west north central ■
middle atlantic ■ new england
Amount of asphalt shingle products mCkinney manufactured annually — enough to cover more rixon speciality door controls than 5 million homes every year. source: page views from sweets.com 7/10–8/10
source: asphalt rooﬁ ng manufacturers association
national guard products feet 2.5 billion square inc. zero international inc.
pemko mfg. co.
source: m Cgraw-hill construction research + analytics
sweets.com | august/september 2011 | snap | 27
Table of Contents for the Digital Edition of Snap - August/September 2011
Snap - August/September 2011
Case Study: Education
Green Product Roundup
Walls & Wallcoverings
ENR Cost Reports
Regional Focus: Southeast
Live & Learn: Ceu Courses
Trade Show News
Partners in Design
Snap - August/September 2011
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