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 | Mar 7, 2022
Massachusetts proposed energy code changes don’t ban gas
Proposed changes to the Massachusetts energy code would provide incentives for builders to fully electrify buildings, but not impose a ban on natural gas hookups.
Codes and Standards | Mar 4, 2022
Construction industry faces a 650,000 worker shortfall in 2022
The U.S. construction industry must hire an additional 650,000 workers in 2022 to meet the expected demand for labor, according to a model developed by Associated Builders and Contractors.
Codes and Standards | Mar 4, 2022
FAA offers $1 billion in grants for airport terminal and tower projects
The Federal Aviation Administration (FAA) is now accepting applications for about $1 billion in grants for airport projects during fiscal year 2022.
Codes and Standards | Mar 1, 2022
Engineering Business Sentiment study finds optimism despite growing economic concerns
The ACEC Research Institute found widespread optimism among engineering firm executives in its second quarterly Engineering Business Sentiment study.
Codes and Standards | Feb 28, 2022
Low-cost concrete alternative absorbs CO2
Researchers at Worcester Polytechnic Institute have developed a new CO2-absorbing material that’s a low-cost alternative to concrete.
Multifamily Housing | Feb 25, 2022
First set of multifamily properties achieve BREEAM certification in the U.S.
WashREIT says it has achieved certification on eight multifamily assets under BREEAM’s In-Use certification standard.
Codes and Standards | Feb 24, 2022
Most owners adapting digital workflows on projects
Owners are more deeply engaged with digital workflows than other project team members, according to a new report released by Trimble and Dodge Data & Analytics.
Codes and Standards | Feb 21, 2022
More bad news on sea level rise for U.S. coastal areas
A new government report predicts sea levels in the U.S. of 10 to 12 inches higher by 2050, with some major cities on the East and Gulf coasts experiencing damaging floods even on sunny days.
Codes and Standards | Feb 21, 2022
New standard for ultraviolet germicidal irradiation
The Illuminating Engineering Society (IES) recently introduced the standard, ANSI/IES RP-44-21 Recommended Practice: Ultraviolet Germicidal Irradiation.
Wood | Feb 18, 2022
$2 million mass timber design competition: Building to Net-Zero Carbon (entries due March 30!)
To promote construction of tall mass timber buildings in the U.S., the Softwood Lumber Board (SLB) and USDA Forest Service (USDA) have joined forces on a competition to showcase mass timber’s application, commercial viability, and role as a natural climate solution.
