The International Code Council (ICC) has approved all 14 of the tall mass timber code change proposals.
The proposals create three new types of construction (Types IV-A, IV-B and IV-C), which set fire safety requirements, and allowable heights, areas, and number of stories for tall mass timber buildings. The new provisions will be included in the 2021 International Building Code (IBC).
The three new types of construction that will be included in the 2021 IBC are:
· Type IV-A – Maximum 18 stories, with gypsum wallboard on all mass timber elements.
· Type IV-B – Maximum 12 stories, limited-area of exposed mass timber walls and ceilings allowed.
· Type IV-C – Maximum 9 stories, all exposed mass timber designed for a 2-hour fire resistance.
“The addition of tall mass timber to the International Building Code provides a comprehensive set of safety standards for these new types of construction,” said American Wood Council Vice President of Codes & Regulations Kenneth Bland, P.E., in a news release. “This vote caps off several years of scientific research and testing, and verifies that mass timber meets the robust performance standards called for by our nation’s building codes.”
Related Stories
Codes and Standards | Apr 23, 2020
COVID-19 epidemic demonstrates value of flexible hospital space
Some rooms being repurposed for ICU care.
Codes and Standards | Apr 15, 2020
Embodied carbon footprint can be reduced by using conventional materials
High-SCM concrete, and cellulose and wood fiber insulation among the greener alternatives.
Coronavirus | Apr 13, 2020
COVID-19 alert: City conducts a 'virtual building inspection' to allow Starbucks and bank to open
Bothell, Wash., issues a certificate of occupancy to developer after inspecting the property online.
Codes and Standards | Apr 13, 2020
Design competition focuses on reducing urban heat island effect
Cool Abu Dhabi aims to transform urban life in the Middle East.
Codes and Standards | Apr 13, 2020
What building science says about reducing COVID-19 transmission
Impact of temperature and relative humidity is unclear.
Codes and Standards | Apr 9, 2020
Owners retrofitting properties, monitoring performance during epidemic
Covid-19 outbreak may lead employers to reevaluate office commitments.
Codes and Standards | Apr 7, 2020
Dept. of Labor publishes guidance on paid sick leave, expanded family and medical leave
Includes fact sheets for employees, employers, and a questions and answers document.
Codes and Standards | Apr 1, 2020
Standards and codes meetings halted, postponed
ASTM International cancels in-person standards meetings; DOE’s National Energy Codes Conference postponed.
Codes and Standards | Mar 26, 2020
Ransomware attack on Canadian contractor underscores need for cybersecurity
Victimized company Bird Construction has defense, law enforcement contracts.
Codes and Standards | Mar 23, 2020
Contractors should scrutinize contracts carefully amid Covid-19 crisis
Compliance with time-sensitive notice requirements and careful documentation required.