NEW PRODUCTS Smart green choices
NEW ERA FOR GLASS
Southwall Technologies
www.southwall.com recently announced the ability of Heat Mirror insulating glass to insulate against heat loss at a record-breaking center of glass R-20/U 0.05 insulation value. R-20 Heat Mirror insulating glass consists of three heat
reflective coated films mounted inside an insulating glass unit between two pieces of low-e coated glass. This super insulating glass construction creates four heat-impeding gas- filled cavities and achieves R-20 performance. Heat Mirror R-20 is a product of Serious Materials, a leading Southwall customer licensed to fabricate Heat Mirror insulating glass. Heat Mirror is a technologically advanced low-emissivity
and solar reflective film that can be mounted inside an insulating glass unit in a variety of configurations (one, two, or three coated films, uncoated or low-e coated glass) to provide energy conservation performance ranging from R-6 to R-20 to meet the unique requirements of commercial and residential new construction and renovation projects. Heat Mirror is the technological alternative to coated
glass that extends performance well beyond that of generic low-e glass available today. Heat Mirror insulating glass, as well as other innovative glass technologies currently under development, is driving the U.S. Department of Energy to revise the window performance standards of its Energy Star program that rates the energy efficiency of appliances and building components. Revised Energy Star window performance standards make
clear that generic low-e glass, with a maximum insulating performance level of R-4, no longer represents a level of energy efficiency required to “transform the market,” a key charter of the agency’s ratings and standards program. Among Energy Star’s objectives is increased market penetration of glass achieving insulating performance of R-10 an objective achieved by Heat Mirror technology today. Why is increasing the energy efficiency of glass important? According to Chris Mathis, a founding member of the National Fenestration Rating Council (NFRC), which sets standards for window energy efficiency, 64% of the 110 million existing homes in the United States have single-pane windows. This contributes 25%–35% of the total energy wasted in buildings and 10% of the total carbon emissions in the United States annually.
Finishing Details Solatube International is introducing an innovative, versatile metal roof flashing that
makes it easier for architects to bring daylight into buildings without sacrificing the elegant design of metal roofs. The new Solatube Metal Roof Flashing features a round-edge, leak-proof design that reduces the exposed surface area by 50% (as compared with traditional flashings), eliminates the need for bulky crickets to divert water, and can be adapted to fit virtually any Standing Seam Rib roof profile. Its unique, diverted flange design reduces roof clutter by concealing the fasteners; while Solatube International’s innovative DryLock Technique provides a triple-seal approach that locks the flashing to the metal roof deck. Fully paintable, the new flashing provides a sleek, low-profile appearance that complements any roof design. The new Solatube Metal Roof Flashing is compatible with roofs from leading manufacturers, including Butler Metal Roof Systems, MBCI, Metal Sales, and Pac-Clad. It has been tested in international markets and is now available in North America through Solatube Commercial Distributors nationwide.
www.solatube.com
46 GreenBuilder October 2010
www.greenbuildermag.com
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