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
| Mar 30, 2012
CSI webinar: Durable & energy efficient building envelope design, April 24
This seminar will review recent changes in North America energy codes, examples of building enclosure wall assemblies being considered for code compliance, potential moisture management and durability challenges, and design tools that could be used to assess and minimize potential problems.
| Mar 30, 2012
Improved construction that followed seismic codes helped avert loss of life in Mexico temblor
A magnitude-7.4 earthquake that shook Mexico from Mexico City to Acapulco damaged hundreds of homes and sent thousands fleeing from swaying office buildings, yet no one was killed, according to early reports.
| Mar 30, 2012
Chicago may allow people to live in retail spaces
The Chicago City Council’s Zoning Committee approved a zoning change that will allow up to 50% of work space in low-intensity business districts to be used for living space.
| Mar 30, 2012
LEED growing fast in the housing rental market
Last year, developers of 23,000 U.S. multifamily housing units applied for LEED certification.
| Mar 30, 2012
Forest Stewardship Council critical of proposed LEED 2012 changes
According to the Forest Stewardship Council (FSC), the third draft of LEED 2012, if approved as written, would represent a step backward from the current Certified Wood Credit.
| Mar 22, 2012
Symposium on water efficiency: How much more water can be saved?
The Third International Emerging Technology Symposium by IAPMO and the World Plumbing Council features a session on water efficiency.
| Mar 22, 2012
Broker doesn’t have to inform contractor that insurer went broke, California court rules
A California appellate court ruled that an insurance broker did not have a duty to inform a subcontractor that a project’s insurer had gone bankrupt.
| Mar 22, 2012
Public agencies shouldn’t negotiate project labor agreements, says AGC official
When a public agency rather than the contractor negotiates a PLA with unions, it interferes with the right of employers and workers to reach their own agreements on working conditions and benefits, says Steve Isenhart, president of the Associated General Contractors of Washington.
| Mar 22, 2012
Proposed rule would let crane operators get licenses without prior city experience
The Bloomberg administration is considering letting operators of giant tower cranes get their license without requiring that they first run cranes as apprentices in the city for three years.
