FEATURES

Ensuring a win in the lighting specification process

Design/construction professionals hope their project designs proceed without missteps or complications. Of course, that rarely happens. The lighting product specification and bidding process is complex, as it involves many interested parties, each with its own stake in which products are ultimately installed in the project.
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FAILURES

Mixed-up systems

The control and management of rainwater on and within a curtain wall assembly is critical for long-term performance and durability. Water-control strategies—most commonly drainage or barrier (exclusion)—can vary by system type and glazing technique....

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SPECIFICATIONS

Using the General Conditions as a foundation document

An astute specifier understands the importance of the construction contract and its associated General Conditions for writing the general requirements for a project. While many Divisions 02 through 49 Sections can be prepared independently of the contractual provisions, Division 01 cannot be adequately prepared until the specifier knows who...

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FORM + FUNCTION

San Francisco tower shakes up seismic design

Located in San Francisco, 181 Fremont Street is a 244-m (800-ft) building designed to be resilient against structural damage in a 500-year earthquake. The steel and glass tower is anchored by construction shafts measuring more than 29 m (260 ft) down into the bedrock.
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FEATURE

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.+ Read More
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