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 | Nov 22, 2021
ABC’s Construction Technology Report finds focus on solving operational problems
More than half rely on project management software.
Codes and Standards | Nov 22, 2021
Contractors say 811 utility location system has significant flaws
More than half of firms in survey report damages, near misses because lines were unmarked or marked incorrectly.
Codes and Standards | Nov 19, 2021
Creating net-zero/net-positive buildings is top priority in Green Building Trends 2021 report
Findings also demonstrate compelling business case for building green.
Codes and Standards | Nov 19, 2021
Construction Startup Competition 2021 awards highlight tech innovations
AI-powered software to identify and explain critical issues in construction contracts takes top prize.
Codes and Standards | Nov 18, 2021
Infrastructure bill contains $5 billion for energy efficiency in buildings
Wide range of programs to reduce energy use, improve materials, train workers.
Codes and Standards | Nov 17, 2021
Skanska will provide embodied carbon assessments on all new projects over 53,000 sf
Will use the Embodied Carbon in Construction Calculator it helped create.
Codes and Standards | Nov 16, 2021
NOAA, Univ. of Maryland, and ASCE partner on climate-smart engineering codes, standards
Efforts will account for climate change in future infrastructure design and construction.
Codes and Standards | Nov 15, 2021
Intl. Code Council and Modular Building Institute release new off-site construction standards
‘Will create consistency for off-site construction; accelerate the industry’.
Codes and Standards | Nov 12, 2021
GSA will likely shrink federal office space post-COVID
Agency also needs to address maintenance backlog.
Codes and Standards | Nov 10, 2021
Los Angeles launches fast-track office tenant improvements program
Red tape to be cut to make interiors healthier and safer.
