The rise of the blue roof

Blue-roof implementation is on the rise in the United States and, indeed, around the world. First conceived in 2008, these ROOF assemblies have proved to be an emerging technology that changes the game in densely populated, urban areas like San Francisco, Philadelphia, and New York.
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Understanding trap-seal protection devices

Building codes are gradually changing across North America to allow waterless trap-seal protection devices (TSPDs) in lieu of trap primers. Depending on the jurisdiction, the products can be employed as substitutes in retrofit situations where trap primers have failed. What do design/construction professionals need to know?
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Revitalization through copper pipes

The country’s drinking-water infrastructure recently received a ‘D’ on the American Society of Civil Engineers’ (ASCE’s) Infrastructure Report Card—a nearly failing grade due to the millions of pipes in need of replacement.
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Center achieves net-zero energy use

Designed by SmithGroupJJR, the Chesapeake Bay Foundation’s (CBF’s) Brock Environmental Center has earned Living Building Challenge (LBC) certification from the International Living Future Institute (ILFI). It produces 1.83 times more energy than it used over the past year.
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