OSB as a Raw Material

SBCA has published extensive information regarding raw material performance characteristics, since 2009, when SBCRI first learned of the disparities between OSB and lumber published design values and SBCRI tested performance. We published a 2015 article entitled “ Why is SBCA & SBCRI Publishing Investigative Reports?

The SBCA and SBCRI goal was to document SBCRI testing facts in a public forum for use by anyone needing background information. This webpage provides an organized listing of links to each of the past unique OSB articles along with the date of publication and a few other articles that may be of interest.  

Recent Articles

1. APA - IRC Allowable Design Values for OSB Wall Bracing = 175 PLF March 2019

2. Wood Structural Panel Lateral Capacity? APA - “Not Sure” October 2018

3. Design Value Concepts by APA’s Dr. Yeh August 2018

4. APA Confirms Wide Range of OSB Design Values July 2018

5. Competition Improves Everyone; APA Disagrees July 2018

6. APA Introduces "Standard Factors for OSB Equivalency" Concept July 2018

7. APA President Addresses Standard OSB Equivalency Factors July 2018

8. Testing Confirms APA Bracing Spectrum Concept Appropriate July 2018

9. Why Benchmark and Equivalency Testing Are So Important July 2018

10. Through Attorney, APA Responds to a Threat to OSB Market Share July 2018

11. When Does 450=840? Why Not Fix It? SBCA Tried... October 2015

Testing of OSB Articles

12. SBCRI Qualtim Understanding Single Element Test Performance An Evaluation of E72/E564/E2126 Evaluation of BWPs Through Assembly Testing

13. Lawless Defense Presentation on Performance of Perforated Light-frame Wood Shear Walls with Conventional Anchorage and High Aspect Ration Segments December 2013

14. Ballot Response Submission to ASTM August 2013

15. SBCRI Qualtim Calibration of Lateral Wall Station to 12’x30’ Building April 2013

16.  Weyerhaeuser Report Benchmark Monotonic and Cyclic Tests of Fully-Restrained Wood Structural Panel Braced Walls June 2012

17. Reliability and effect of partially restrained wood shear walls January 2012

18. PEI Lab Evaluation of Sheathing Materials - Racking Load on Single Sided Walls 3/8" Oriented Strand Board (OSB) October 2011

19. NAHB Research Center Evaluation of the Lateral Performance of Let-in Bracing and Mixed Bracing Systems May 2008

20.  Tabulated Wall Bracing Test Data September 2006

21. Technical Paper on Light- Frame Shear Wall Length and Opening Effects - Standard methods (e.g. ASTM E72, E564, E2129) of testing the racking capacity of light‐frame walls are inefficient and may give erroneous estimates of shear wall performance October 1985

Installation of OSB Articles

22. Installation & Fastening of Wood Structural Panel Wall Bracing March 2014

OSB Design Value Articles

23. How APA Built a Competitive Advantage for OSB Through the Building Code October 2015

24. When Does 450=840? Why Not Fix It? SBCA Tried... October 2015

25. 450=840 Creates an Artificial Competitive Advantage for OSB October 2015

26. Installation of Interior Gypsum Board Finish November 2014

27. SBCA Recommends Solution to AWC Regarding Shear Wall Design Values July 2014

28. SBCA Sustains Negative Vote on AWC Shearwall Design Standard June 2014

29. SBCA Response to WDSC Ballot I for Special Design Provisions for Wind & Seismic (SDPWS) (04/2014) Finding of Non‐Persuasive on Ballot I‐1 Lawless Negative June 2014

30. WDSC Ballot I for Special Provisions for Wind & Seismic (SDPWS) (04/2014) Finding of Non‐Persuasive on Ballot I‐1 Lawless Negative April 2014

31. Installation & Fastening of Wood Structural Panel Wall Bracing March 2014

32. Knowledge is Power: Know OSB Sheathing Performance & Options March 2014

33. Transparent Understanding of the Rules Clarifies the Path to Innovative & Value-added Engineering January 2014

34. You Don’t Know What You Don’t Know, Part III November 2013

35. Overstated Lumber and OSB Design Values Create a Code-Compliance-Based Market Advantage October 2013

36. You Don’t Know What You Don’t Know, Part II September/October 2013

37. You Don't Know What You Don't Know August 2013

38. SBCA Approves Design Value Policy August 2013

39. Design Values Matter: Make Sure You Fully Understand Why April 2013

40. Ground Breaking: What Everyone Needs to Know About Wood Structural Panel Performance June 2012

41. Reliability and effect of partially restrained wood shear walls January 2012

42.  Braced Wall Revolution November 2011

43. Why Should I Care about Code Compliant Braced Wall Design Values? August 2011

44. SBCRI Qualtim Braced Wall Panel Engineering Considerations August 2011

45. SBCRI Qualtim Why Evaluate Braced Wall Engineering July 2011

46. SBCRI Reveals Data from Wall Bracing Tests April 2009

OSB Seismic Design Parameter Articles

47. Seismic Design Coefficients: How they are determined for light-frame components Part 2 August 2014

48. Is APA a Great Example of Advancing Interests via Conflicting Interests? January 2017

49. Seismic Design Coefficients: How they are determined for light-frame components May 2014

50. Overstated Lumber and OSB Design Values Create a Code-Compliance-Based Market Advantage October 2013

51. Monotonic and Cyclic Tests of Shear Walls with Gypsum Wallboard, Fiberboard, and Hardboard Sheathing November 2002

OSB Performance and Fasteners Articles

52. Homebuilders Find OSB to Be an Unreliable Air Barrier September 2015

53. Does Open-Cell Spray Foam Cause Roof Rot? April 2014

54. Installation and Fastening of Wood Structural Panel Wall Bracing March 2014

55. Does Open-Cell Spray Foam Lead to Damp Roof Sheathing? January 2014

56. Prevent Moisture Absorption of OSB Roof Panels with Spray Urethane April 2003

Engineering of OSB Articles

57. Engineered vs. Prescriptive Wall Panel Design August 2015

58. Good Information Leads to Good Decision-Making March 2015

59. Reliability and effect of partially restrained wood shear walls January 2012

60. The Story Behind the 2009 IRC Wall Bracing Provisions (Part 2: New Wind Bracing Requirements) by Crandell J. and Z. Martin 2009

61. Special Design Provisions for Wind and Seismic (SDPWS)  American Forest & Paper Association August 2008

62. The Performance of Perforated Shear Walls with Narrow Wall Segments Reduced Base Restraint, and Alternative Framing Methods by the NAHB Research Center May 1998

63. Monotonic Tests of Long Shear Walls with Openings by Dolan, D. J. and A. C. Johnson Virginia Polytechnic Institute and State University Timber Engineering Report TE-1996-001 June 1997

64. Perforated Shearwall Design Approach by Douglas, B. K. and H. Sugiyama American Forest & Paper Association December 1994

APA Conflict of Interest Related Articles

65. APA Promotes Misleading Thunderstorm Headline April 2017

66. Is APA a Great Example of Advancing Interests via Conflicting Interests? January 2017

67. Really? OSB Sheathing Blamed in Building Collapse Due to 86 mph Wind! May 2016

68. APA Touts Efforts to Keep Codes Wood Friendly April 2015

69. OSB Sheathed/Braced Condo Collapse Video Goes Viral January 2014

70. Transparent Understanding of the Rules Clarifies the Path to Innovative & Value-added Engineering January 2014

71. SBCA Press Release on Truss & Component Raw Material & Construction Products Design Properties Policy August 2013

Winds of Change – Innovation Welcome Here Articles

72. Knowledge is Power: Know OSB Sheathing Performance & Options March 2014

73. Change Is Such Hard Work: Part IV of the “You Don’t Know What You Don’t Know Series” December 2013

74. You Don’t Know What You Don’t Know, Part III November 2013

75. You Don’t Know What You Don’t Know, Part II September/October 2013

76. You Don't Know What You Don't Know August 2013

77. Embracing Change December 2001

APA, AWC and NAHB Using Code to Create Winners and Losers Articles

78. Homebuilders Outline Opposition to 3 Code Proposals April 2018

79. NAHB Policy and Homebuilder Testimony Support SBCA’s RB69 Code Change Proposal October 2016

80. NAHB Policy Supports Truss Construction, Why are They Testifying Against It? October 2016

81. Firefighter Deaths Underscore Importance of SBCA's RB69 Code Change Proposal October 2016

82. How AWC & NAHB Created a Competitive Advantage for 2x10s Through the Code October 2015

83. NAHB Analysis Critical of 2012 IECC June 2015

84. APA Touts Efforts to Keep Codes Wood Friendly April 2015

85. NAHB Promotes and Influences Voting on ICC Code Change Proposals May 2015

86. NAHB: Legislation Requiring 10-Year Payback from Energy Code Would be a 'Boon for Consumers' July 2014

87. SBCA Sustains Negative Vote on AWC Shearwall Design Standard June 2014

88. AWC & NAHB Author Original Code Change Proposals Effectively Banning Floor Truss and I-joist Use April 2014

89. SBCA's Public Letter to ALSC, AWC, NAHB, SFPA and ICC September 2013

90. NAHB Updates Green Building Standard January 2013

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