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 31, 2019
RELi 2.0 standard for sustainability, resilience being piloted
Will be open to LEED-registered or -certified projects, with introductory pricing and support.
Codes and Standards | May 31, 2019
Pankow Foundation releases report, tools for embodied carbon impacts
Focus is on MEP and tenant improvements.
Codes and Standards | May 24, 2019
USGBC receives funding for LEED for Cities and Communities Program
Bank of America provides $500,000 grant to certify 15 U.S. cities.
Codes and Standards | May 24, 2019
AIA updates Interiors Contract Documents
Six revised documents available for interior construction projects.
Codes and Standards | May 23, 2019
Northern California casino offers a template for resilient microgrids
Solar power with batteries and backup generators provide weeks of self-reliance.
Codes and Standards | May 23, 2019
Austin creates innovative plan to boost affordable housing
Approach includes loosened zoning, incentives for higher density in lower-cost and mixed-income developments.
Codes and Standards | May 20, 2019
Effort launched to develop better process for zero-carbon retrofits in multifamily sector
Rocky Mountain Institute, Dept. of Energy, California Energy Commission join forces.
Codes and Standards | May 20, 2019
Property lenders shouldn’t invest for 30 years in most of Florida, expert warns
Climate ignorance driving some ‘insane’ deals.
Codes and Standards | May 17, 2019
NIMBYism is the biggest multifamily construction barrier
National Apartment Assn. report assesses reasons for difficulty in creating more apartments.
Codes and Standards | May 17, 2019
Dept. of Energy to award up to $33.5 million for advanced construction R&D
Focus is on techniques to reduce energy bills.
