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
Codes and Standards | May 27, 2016
Better enforcement needed for successful implementation of energy efficiency policies
Commercial buildings the focus of recent code initiatives.
Codes and Standards | May 25, 2016
LEED Dynamic is worth the effort, says commercial real estate executive
San Diego office tower is California’s first office building to receive LEED Dynamic plaque in recertification.
Codes and Standards | May 24, 2016
Ontario planning to spend $7 billion on wide-ranging climate change plan
Includes financial incentives to retrofit buildings.
Codes and Standards | May 23, 2016
Facility managers say Internet of Things, analytics will impact maintenance soon
More reliable data needed for optimal results from the technology.
Codes and Standards | May 20, 2016
Industry leaders call for wider use of bamboo as a building material
Benefits include seismic resiliency and sustainability.
Codes and Standards | May 19, 2016
Asphalt roofing group publishes updated shingle installation guide
Technical manual provides best practices for roofing professionals.
Codes and Standards | May 16, 2016
EPA proposes new stormwater discharge regulations for construction sites
Would apply to sites of one or more acres.
Roofing | May 16, 2016
New guide focused on increasing energy and structural performance with raised-heel trusses
Higher trusses simplify attic ventilation, leave more space for insulation.
Codes and Standards | May 11, 2016
Current California seismic codes provide safety, resiliency, but needed upgrades present challenge
Los Angeles requires seismic retrofits, but other cities do not.
Codes and Standards | May 10, 2016
Apple spars with Cupertino, Calif., mayor over strained city infrastructure
Apple’s new ‘spaceship’ campus project prompts questions about whether the company should pay more to offset traffic woes.
