Outline of Presentation 1) NLGA Background & Responsibilities - PowerPoint PPT Presentation

Outline of Presentation 1) NLGA Background & Responsibilities 2) Overview of In-grade Testing & Design Value Monitoring in Canada Conducted by NLGA in Canada a) In-grade Testing b) Design Value Monitoring i. S-P-F ii. D Fir-L (N) iii. Hem-Fir (N) c) Other In-grade Projects d) Norway Spruce

NLGA Ba A Backg ckgro round  Incorporated in January 1971 to amalgamate all Canadian lumber grading rules under one rule.  NLGA’s role is to:  establish;  publish & issue;  interpret; and  maintain & amend Lumber Grading Rules & Special Product Standards for all Canadian species of lumber.  And:  establish; and  monitor Lumber design values for Canadian species for use in the USA as approved by ALSC and in Canada as assigned by CSA O86. 3

NLGA GA Orga ganiza nizatio tion n Cha hart rt BOARD OF DIRECTORS (11 Agency Representatives) EXECUTIVE COMMITTEE NLGA STAFF (2) GRADE COMMITTEE STANDARDS COMMITTEE Oversees Oversees Special Products Standards Maintenance, Visual Grading Rule Maintenance, Interpretation & Development Interpretation & Development SPECIAL COMMITTEES NLGA Lumber Properties Steering Committee Technical Advisory Committee (NLPSC) (TAC)

NLGA Ba A Backg ckgro round  NLGA Standards and Rules are developed: a) by ‘ balanced consensus' committees (includes lumber producers, consumers, users, academia, government & regulatory authorities); b) following ‘due process'; c) through a ‘transparent and accountable' voting process; d) with a ‘rigorous procedure ’ for resolving negatives.  Approvals: a) There is a two-level NLGA approval process: i) Committee (ie. Standards or Grade Committee) ii) NLGA Board b) Followed by CLSAB & ALSC approvals. 5

NLGA P Pub ublic icatio tions ns  NLGA Standard Grading Rules for Canadian Lumber  Special Product Standards – SPS 1 through SPS 6 For FJ, MGL and Face/Edge Glued Lumber   Canadian Lumber Grading Manual 6

NLGA Ba A Backg ckgro round ( Con’t )  NLGA Grade Rules & Standards are referenced in the National Building Code of Canada (NBCC);  Design values referenced in the NBCC for Canadian species groups are assigned by CSA O86 7

NLGA Ba A Backg ckgro round ( Con’t )  NLGA Rules & Standards are also: 1) Recognized in the U.S. through the ALSC - whose authority is granted under the U.S. Voluntary Softwood Standard PS 20; & 2) NLGA lumber design values for the U.S. are published in the ANSI/AWC NDS Supplement – Design Values for Wood Construction (2012 Edition). 1) 2) 8

NLGA Ba A Backg ckgro round ( con’t )  Canadian Wood Council (CWC) provides engineering & technical support to NLGA for design values at CSA O86 and ALSC ( www.cwc.ca)  FP Innovations does research, testing & provides some tech support to NLGA (www.fpinnovations.ca) 9

Outline of Presentation 1) NLGA Background & Responsibilities 2) Overview of In-grade Testing & Design Value Monitoring in Canada Conducted by NLGA in Canada a) In-grade Testing b) Design Value Monitoring i. S-P-F ii. D Fir-L (N) iii. Hem-Fir (N) c) Other In-grade Projects d) Norway Spruce

Lumbe ber I r In- gr grade de T Testing ting  4 Species Groups for Canada;  S- P- F; F;  D Fi D Fir- L (N L (N); );  He Hem- Fir ( ir (N); ); &  Nor orth thern Spe pecie ies.  Current design values (Limit States Design - LSD) and Allowable Stresses :  Were established through In-grade sampling & testing in the early 1980 ’s ; and  Design values were approved and published in the early 1990 ’s ; 11

Lumber De Design V ign Value ues NLGA’s Lumber Design Value Monitoring Commitment In Sep 1998, the NLGA Board re-affirmed its commitment to the monitoring clause stated in ASTM D1990 ‘ Establ blishi hing ng Allo llowa wable le Pro rope pert rties for or Vis isua ually- Gra Graded Dime mensi sion Lumb mber fr from In In- grade de Test sts of of Fu Full- Si Size ze Specimens’ and proceeded with monitoring of programs on an on-going basis and has conducted monitoring of its major species ever since. 12

Lumber De Design V ign Value ues ( Con’t ) Lumber Design Value Monitoring  NLGA has been conducting monitoring studies since 1999;  The purpose is to verify that there has not been significant change to species group design values due to resource or mill practice change.  In-grade monitoring is now a mandatory requirement under ALSC (ASTM D1990) for major species groups (i.e. S-P-F, D Fir-L (N) & Hem-Fir (N) in Canada and SYP, SPFs, D Fir-L & Hem-Fir in the U.S.) 13

Lumber De Design V ign Value ues ( Con’t ) Lumber Design Value Monitoring  NLGA must conduct a monitoring study as required in ASTM D1990 on each major species group <S-P-F, D Fir-L (N) and Hem-Fir (N)> under its control at least once every five (5) years using a pre-approved sampling and testing plan.  A report with NLGA’s findings and test data must be submitted to ALSC for analysis by the USFPL to determine if the published design values have been maintained. 14

Lumber De Design V ign Value ues ( Con’t ) Lumber Design Value Monitoring (S-P-F) • Monitoring Studies for S-P- F were conducted: • 1999-2000 (Phases 1 & 2); • 2007 (Pilot Study 1); • 2008 (Pilot Study 2); • 2010-11 (Ramp-up Study); • 2011-2012 (Year 1 - Longitudinal Study); and • 2012-2013 (Year 2 - Longitudinal Study) • All test results supported the published design values 15

Lumber De Design V ign Value ues ( Con’t ) Lumber Design Value Monitoring (S-P-F) ( Con’t ) Date Study Size & Grade Property Result Year 3 MOE / 2013-14 (Longitudinal 2x4 / No. 2 / 8’ • Testing just completed MOR Study) • Mill survey information for 2014 shipments is being Year 4 MOE / collected 2015 (Longitudinal 2x4 / No. 2 / 8’ MOR Study) • Sample collection is expected begin in June 2015 • Confirmed that there was MOE / no significant downward 2013-14 2013 Study 2x10/No. 2/16’ MOR shift in the MOE or MOR properties 16

S-P-F Monitoring Regions For S-P-F In- grade: There were 14 sampling regions • For Monitoring S-P- F: 4 Mega -regions are sampled (II to V) •

Lumb mber Design Values (Con’t) Lumber Design Value Monitoring - D Fir-L (N) • Monitoring Studies for D Fir-L (N) were conducted: • 2002 ; 2011-12 ; 2012-13 ; • All test results supported the published design values 2013- 14: Testing has just been completed; • • For 2015 : • Mill survey information for 2014 shipments is being collected; and • Sample collection is expected to commence in June 2015 18

Lumb mber Design Values (Con’t) Lumber Design Value Monitoring – Hem-Fir (N) • A Monitoring Study for Hem-Fir (N) was conducted in 2005 ; All test results supported the published design values; • In 2011-12, a Year 1 Hem-Fir (N) study was conducted and the results initiated Verification Phase sampling and testing as required under ASTM D1990 ; • In 2013-14, Year 2 of the monitoring study data confirmed Year 1 findings ; • 2x4X8 ’ No. 2 samples were tested for these studies 19

Lumb mber Design Values (Con’t) Lumber Design Value Monitoring – Hem-Fir (N) In 2014, the Hem-Fir (N) Verification Phase sampling and • testing study was conducted as required under ASTM D1990 ; 2x4x8” No. 2 and 2x10x16 ’ No. 2 were sampled and tested for • the verification phase. ALSC (US FPL) approved this approach. All test results supported the published design values • U.S. FPL sent NLGA a letter agreeing that “the verification • study gave no reason to believe that there has been a significant downward shift in MOE or MOR.” Sample collection for the Hem-Fir (N) 2015 monitoring study is • expected to commence in June 2015. 20

D Fir-L (N) & Hem-Fir (N) Monitoring Region • For D Fir-L (N) & Hem-Fir (N) In- grade: There were 4 sampling regions • For Monitoring: 1 Mega - region is sampled (BC only)

Lumber Design Values (Con’t) Other Design Value Projects Date Project Size & Grade Results S-P-F MSR 2x4 2100 Fb-1.8E & • Supports published MOE, MOR & UTS 2004 Monitoring Study 1650 Fb 1.5E values for S-P-F MSR lumber Yellow Cedar/ 2x4, 2x6 & 2x8 • ALSC and CSA O86 approved new design 2005 Sitka Spruce SS and No. 2 values for Yellow Cedar & Sitka Spruce D Fir-L (N) / No. 1&Btr • ALSC approved new design values for No. 2005 Hem-Fir (N) 2x4, 2x8 & 2x10 1 & Btr D Fir-L (N) & Hem-Fir (N) #1&Btr SS and No. 2 Hem-Fir (N) • ALSC approved sampling plan 2013- SS and No. 2 Timber • Testing completed in June 15 2016 6x6 to 12x14 In-grade • Analysis to begin Future • Over time other widths, grades & properties of existing species may be tested 22

Lumber Design Values (Con’t) Norway Spruce Test Programs Date Project Size & Grade Property 2 UNB - MLB Norway 2x4, 2x6 & 2x8 1999 - MOE, MOR, Spruce Exploratory SS, No. 1 and No. 2 2001 UCS & UTS Studies (8’ to 16’) Establishing Canadian Norway Spruce 2x4, 2x6 & 2x8 2004 - MOE, MOR, Design Values SS and No. 2 2007 UCS & UTS (Includes Que & ON (8’ to 16’) data) 23