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
| Apr 13, 2012
Federal court reduces statute of limitations for OSHA action on record-keeping violations
The U.S. Court of Appeals for the D.C. Circuit sharply curtailed the period of time that companies can be cited for Occupational Safety and Health reporting violations, reversing the decision of an administrative panel and longstanding agency precedent.
| Apr 13, 2012
CSI webinar: Green Construction Codes Are Here -- Now What?
This seminar will trace the origins of green codes, how they compare and differ from the rating systems that have been used, and examine some of their main features.
| Apr 5, 2012
Retailers, banks among most affected by new ADA rules
On March 15, the most significant changes to the Americans with Disabilities Act (ADA) since it became law in 1991 went into effect.
| Apr 5, 2012
Florida ranks first in hurricane building codes and enforcement
Florida ranks highest among 18 hurricane-region states for building codes and their enforcement, according to the Insurance Institute for Business & Home Safety.
| Apr 5, 2012
New IgCC green building code is a ‘game changer,’ AIA official says
An AIA official calls the new International Green Construction Code (IgCC) a “game changer” for sustainable construction.
| Apr 5, 2012
Model energy codes add thousands to cost of new apartment construction, study says
New energy codes could add thousands of dollars to the construction costs of each individual apartment residence in a multifamily building, according to new research commissioned by the National Multi-Housing Council and the National Apartment Association.
| Apr 5, 2012
LEED 2012 will include new requirements for data centers
The U.S. Green Building Council’s updated LEED 2012 standards will require two systems to be modeled for each project in order to show power utilization effectiveness.
| 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.