U.S. National Institute of Standards and Technology code revision recommendations in the wake of the World Trade Center terrorist attacks are being implemented in new high-rise construction, including One World Trade Center, the lead building of the new World Trade Center complex.
New requirements include:
- Buildings taller than 420 feet are now required to include an extra exit stairwell or a specially designed elevator that occupants can use for evacuations
- Stairwells in buildings more than 75 feet high must now have glow-in-the-dark markings that show the exit path even when lighting is out or dim
- Spray-applied fire-resistive materials must perform four times more effectively than current requirements in buildings 75 to 420 feet tall, and more than seven times better in buildings taller than 420 feet. BD+C
Related Stories
| Dec 13, 2012
New OSHA initiatives on tap at AGC safety and health conference
More than 150 industry professionals will discuss the development of regulatory and legislative activity on national and local levels at the Associated General Contractors of America’s health and safety conference.
| Dec 13, 2012
So-called fiscal cliff is already affecting construction jobs, AGC finds
In November, the construction industry shed 20,000 jobs and its unemployment rate reached 12.2%, according to an analysis by the Associated General Contractors of America.
| Dec 13, 2012
New York City poised to enact recycling mandate for multi-family dwellings
New York City lags behind other large cities in recycling with only 15% of residential trash being recycled. A new bill passed by the City Council aims to improve the rate by changing how new apartment buildings are constructed.
| Dec 13, 2012
Pima County, Ariz. officials say improved code enforcement scores will help lower insurance bills
Insurance Service Office, Inc. (ISO) recently analyzed building codes and enforcement and found that Pima County, Ariz., consistently outscored comparable jurisdictions in Arizona and the nation.
| Dec 13, 2012
D.C. aims to be a green leader with new building codes
The District of Columbia has released a revised set of building codes to make it a leader in green construction.
| Dec 7, 2012
Georgia court limits contractors’ ability to foreclose on liens
The Georgia Court of Appeals ruled in 182 Tenth, LLC v. Manhattan Construction Company that lien claimants such as contractors, subcontractors, and materialmen, may not foreclose on a lien that includes unpaid general condition costs.
| Dec 7, 2012
San Francisco real estate records will include ‘green labels’
Ecologically-sustainable building practices, or “green labels,” will now be included on official land records maintained by San Francisco.
| Dec 7, 2012
Tokyo’s Green Building Program has reduced power consumption by 20%
Tokyo city officials calculate that its Green Building Program reduced energy consumption by 20% since its inception, a statistic they identify as the reason the power stayed on during the 2011 earthquake.
| Dec 7, 2012
New flexible options make achieving LEED certification easier on projects outside the US
A new set of Global Alternative Compliance Paths, or Global ACPs, are now available for all commercial projects pursuing LEED green building certification using the 2009 versions of the rating systems.
