The American Wood Council's 2015 “Wood-Frame Construction Manual for One- and Two-Family Dwellings” (WFCM ) has been approved as an American National Standard by the American National Standards Institute (ANSI). WFCM is referenced in the International Code Council’s 2015 “International Building Code” and 2015 “International Residential Code” (IRC).
The manual equips designers with engineered construction methods that result in buildings better able to withstand damage and protect occupants should disaster strike,” said AWC President & CEO Robert Glowinski. “Since the WFCM was first published in 1995, AWC has been providing a solution for design of wood-frame structures to resist natural disasters. Each successive edition of the standard continues to provide solutions to more severe events as required by building codes.”
The WFCM includes design and construction provisions for connections and wood wall, floor, and roof systems. A range of structural elements are covered, including sawn lumber, structural glued laminated timber, wood structural sheathing, I-joists, and trusses.
Primary changes in the new WFCM include:
· Tabulated spans for lumber framing members now reflect changes to design values referenced in the 2015 “National Design Specification for Wood Construction”.
· New tables provide prescriptive wood-frame solutions for rafters and ceiling joists in response to new deflection limits for ceilings using gypsum wallboard or brittle finishes adopted in the 2015 IRC.
· Designers may begin using the new standard immediately, but are encouraged to seek approval from the authority having jurisdiction.
The free view-only 2015 WFCM is now available in electronic format on the AWC website. Print versions of the standard are expected to be available for purchase in early 2015.
Related Stories
Codes and Standards | Jul 15, 2021
Three drywall code-referenced publications have been updated
Include guidance on fire resistance, sound control, application, and finishing.
Codes and Standards | Jul 14, 2021
Biden’s infrastructure proposal includes massive investment in school buildings
‘Once in a lifetime opportunity’ to upgrade HVAC and other key systems.
Codes and Standards | Jul 13, 2021
Reluctance to fund maintenance on older condos is a serious problem
Owner associations defer needed work, putting properties at risk.
Codes and Standards | Jul 12, 2021
Regulations on hydrofluorocarbons reduce roof insulation options
Canada, some U.S. states ban HFC blowing agents used in closed-cell foam.
Codes and Standards | Jul 8, 2021
New York City shuts down 322 construction sites for unsafe conditions
Action comes as inspectors visit more than 2,100 sites.
Codes and Standards | Jul 7, 2021
Bechtel, Nautilus partner on sustainable, high-performance data centers
Facilities would use 70% less power for cooling, eliminate consumption of drinking water.
Codes and Standards | Jul 7, 2021
Surfside condo collapse could spur new legislation
Natl. Institute of Standards and Technology is investigating.
Codes and Standards | Jul 7, 2021
Intl. Code Council appoints committees to lead energy code development
One-third of appointees are government regulators.
Codes and Standards | Jul 1, 2021
COVID-19 made payment delays to contractors much worse
Only one in ten companies is always getting paid in full.
Codes and Standards | Jun 30, 2021
New resource for public sector organizations to develop energy data management program
Dept. of Energy document contains more than 30 examples of successful implementations.