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CSA O325-2007 Construction sheathing (First Edition Update No 1 March 2008).pdf

1、O325-07(reaffirmed 2012)Construction sheathingUpdate No. 1O325-07March 2008Note: General Instructions for CSA Standards are now called Updates. Please contact CSA Information Products Sales or visit www.ShopCSA.ca for information about the CSA Standards Update Service.Title: Construction sheathing o

2、riginally published March 2007The following is a list of errata that have been identified in the 2007 edition of CSA O325.CSA PagesCSA/2 Add the following paragraph before the last paragraph in the CSA Preface: “This Standard is considered suitable for use for conformity assessment within the stated

3、 scope of the Standard.” PS 2-04, Performance Standard for Wood-Based Structural-Use PanelsPage 7 The heading for imperial units of Minimum Ultimate Load Following Impact in Table 1 should be “lbf”.Page 10 The heading for metric units of Nominal Thickness in Table 6 should be “mm”. Page 10 The metri

4、c Nominal Thickness corresponding to 1 inch in Table 6 should be “25.4 mm”.Page 18 The heading for metric units of Bending Strength, MM in Table 7 for both panel directions should be “N-mm/mm”. Pages 34 and 36 The metric units for the loads expressed in Sections 7.20.2 and 7.20.4 should be newtons i

5、nstead of kilograms, and the relation between newtons (N) and pounds (lb) is as follows:17.8 N equals 4 lb44.5 N equals 10 lb89.0 N equals 20 lb178.0 N equals 40 lbPage 36 The metric values of Pre-load and Test Load in Table 8 are incorrect. The values should be 44.5 N, 89.0 N, and 178.0 N correspon

6、ding to 10 lb, 20 lb, and 40 lb, respectively.Page 36 The legend for the equation for EI in Section 7.20.4 incorrectly presents the lower case “L” as a “6”. It should read “A = Span, mm (in.)”.LegalNoticeforStandardsCanadian Standards Association (CSA) standards are developed through a consensus sta

7、ndards development process approved by theStandards Council of Canada. This process brings together volunteers representing varied viewpoints and interests to achieve consensusand develop a standard. Although CSA administers the process and establishes rules to promote fairness in achieving consensu

8、s, it doesnot independently test, evaluate, or verify the content of standards.Disclaimer and exclusion of liabilityThis document is provided without any representations, warranties, or conditions of any kind, express or implied, including, withoutlimitation, implied warranties or conditions concern

9、ing this documents fitness for a particular purpose or use, its merchantability, or itsnon-infringement of any third partys intellectual property rights. CSA does not warrant the accuracy, completeness, or currency of anyof the information published in this document. CSA makes no representations or

10、warranties regarding this documents compliance withany applicable statute, rule, or regulation.IN NO EVENT SHALL CSA, ITS VOLUNTEERS, MEMBERS, SUBSIDIARIES, OR AFFILIATED COMPANIES, OR THEIR EMPLOYEES,DIRECTORS, OR OFFICERS, BE LIABLE FOR ANY DIRECT, INDIRECT, OR INCIDENTAL DAMAGES, INJURY, LOSS, CO

11、STS, OR EXPENSES,HOWSOEVER CAUSED, INCLUDING BUT NOT LIMITED TO SPECIAL OR CONSEQUENTIAL DAMAGES, LOST REVENUE, BUSINESSINTERRUPTION, LOST OR DAMAGED DATA, OR ANY OTHER COMMERCIAL OR ECONOMIC LOSS, WHETHER BASED IN CONTRACT,TORT (INCLUDING NEGLIGENCE), OR ANY OTHER THEORY OF LIABILITY, ARISING OUT O

12、F OR RESULTING FROM ACCESS TO ORPOSSESSION OR USE OF THIS DOCUMENT, EVEN IF CSA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES, INJURY, LOSS,COSTS, OR EXPENSES.In publishing and making this document available, CSA is not undertaking to render professional or other services for or on behalf of a

13、nyperson or entity or to perform any duty owed by any person or entity to another person or entity. The information in this document isdirected to those who have the appropriate degree of experience to use and apply its contents, and CSA accepts no responsibilitywhatsoever arising in any way from an

14、y and all use of or reliance on the information contained in this document.CSA is a private not-for-profit company that publishes voluntary standards and related documents. CSA has no power, nor does itundertake, to enforce compliance with the contents of the standards or other documents it publishe

15、s.Intellectual property rights and ownershipAs between CSA and the users of this document (whether it be in printed or electronic form), CSA is the owner, or the authorizedlicensee, of all works contained herein that are protected by copyright, all trade-marks (except as otherwise noted to the contr

16、ary), andall inventions and trade secrets that may be contained in this document, whether or not such inventions and trade secrets are protectedby patents and applications for patents. Without limitation, the unauthorized use, modification, copying, or disclosure of this documentmay violate laws tha

17、t protect CSAs and/or others intellectual property and may give rise to a right in CSA and/or others to seek legalredress for such use, modification, copying, or disclosure. To the extent permitted by licence or by law, CSA reserves all intellectualproperty rights in this document.Patent rightsAtten

18、tion is drawn to the possibility that some of the elements of this standard may be the subject of patent rights. CSA shall not be heldresponsible for identifying any or all such patent rights. Users of this standard are expressly advised that determination of the validity ofany such patent rights is

19、 entirely their own responsibility.Authorized use of this documentThis document is being provided by CSA for informational and non-commercial use only. The user of this document is authorized to doonly the following:If this document is in electronic form:.load this document onto a computer for the s

20、ole purpose of reviewing it;.search and browse this document; and.print this document.Limited copies of this document in print or paper form may be distributed only to persons who are authorized by CSA to have suchcopies, and only if this Legal Notice appears on each such copy.In addition, users may

21、 not and may not permit others to.alter this document in any way or remove this Legal Notice from the attached standard;.sell this document without authorization from CSA; or.make an electronic copy of this document.If you do not agree with any of the terms and conditions contained in this Legal Not

22、ice, you may not load or use this document ormake any copies of the contents hereof, and if you do make such copies, you are required to destroy them immediately. Use of thisdocument constitutes your acceptance of the terms and conditions of this Legal Notice.CSA Standards Update ServiceO325-07March

23、 2007Title:Construction sheathingPagination:60 pages, (CSA/1CSA/12, iv, and 43 text)To register for e-mail notification about any updates to this publicationgo on-line to shop.csa.caclick on CSA Update ServiceThe List ID that you will need to register for updates to this publication is 2019711.If yo

24、u require assistance, please e-mail techsupportcsagroup.org or call 416-747-2233.Visit CSA Groups policy on privacy at csagroup.org/legal to find out how we protect your personal information.Published in March 2007 by Canadian Standards AssociationA not-for-profit private sector organization5060 Spe

25、ctrum Way, Suite 100, Mississauga, Ontario, Canada L4W 5N61-800-463-6727 416-747-4044Visit our Online Store at www.ShopCSA.caO325-07Construction sheathingCSA StandardO325-07 Construction sheathingCSA/2 Canadian Standards Association March 2007O325-07Construction sheathingCSA PrefaceThis is the first

26、 edition of CSA O325, Construction sheathing, which is an adoption, with Canadian deviations, of the NIST (National Institute of Standards and Technology) Voluntary Product Standard PS 2, Performance Standard for Wood-Based Structural-Use Panels (December 2004). It replaces CAN/CSA-O325.0, Construct

27、ion sheathing, published in 1992 and 1988, and CAN/CSA-O325.1, Testmethods for construction sheathing, published in 1988. The CSA Technical Committee on Wood-Based Panel Products believes that this adoption provides a suitable standard for Canadian manufacturers, engineers, building officials, and c

28、onsumers. This CSA Standard provides requirements for Canadian applications in its Canadian deviations. In addition, by adopting NIST PS 2, with clearly identified Canadian deviations, the Committee has moved to eliminate market confusion regarding a number of subtle differences between the document

29、s. This Standard is a performance-based Standard. It was prepared to provide an alternative means of specifying wood-based panel products for selected applications in wood-frame construction. Rather than prescribing panel makeup, this Standard establishes the minimum physical, bond durability, and s

30、tructural performance criteria appropriate for floor, wall, and roof sheathing in light frame construction. Minimum load-carrying capacity and maximum deflection levels at specified loads are established at standard framing member spacings of 400, 500, and 600 mm (16, 20, and 24 in), and for some ap

31、plications at spacings of 800, 1000, and 1200 mm (32, 40, and 48 in). The marking system used in this Standard identifies the recommended uses of products and the maximum framing member spacing at standard loads. The span mark corresponds to the recommended maximum spacing expressed in inches. Techn

32、ical differences between this Standard and NIST PS 2 are clearly listed as Canadian deviations. Unless otherwise specified in the Canadian deviations, the requirements of NIST PS 2 apply. In the opinion of the Technical Committee, these differences reflect considerations necessary to satisfy buildin

33、g code assumptions and do not represent discrepancies in required characteristics.This Standard does not recommend engineering design values for construction sheathing, nor does it suggest methods for calculating such values. For information about design values for oriented strand board (OSB) constr

34、uction sheathing, consult CAN/CSA-O86, Engineering Design in Wood.This Standard was reviewed for Canadian adoption by the CSA Subcommittee on OSB and Performance-Rated Panels, under the jurisdiction of the CSA Technical Committee on Wood-Based Panel Products and the Strategic Steering Committee on F

35、orest Products, and has been formally approved by the Technical Committee. This Standard will be submitted to the Standards Council of Canada for approval as a National Standard of Canada.March 2007 Canadian Standards Association 2007All rights reserved. No part of this publication may be reproduced

36、 in any form whatsoever without the prior permission of thepublisher. NIST material is reprinted with permission.Inquiries regarding this CSA Standard should be addressed toCanadian Standards Association5060 Spectrum Way, Suite 100, Mississauga, Ontario, Canada L4W 5N61-800-463-6727 416-747-4000www.

37、csa.caTo purchase CSA Standards and related publications, visit CSAs Online Store at www.ShopCSA.ca or call toll-free1-800-463-6727 or 416-747-4044.O325-07 Construction sheathingMarch 2007 Canadian Standards Association CSA/3Canadian deviationsNote: The scope and requirements of this Standard are fu

38、lly described in NIST PS 2, except as provided in these Canadian deviations, which add to, replace, or delete provisions in NIST PS 2. The nature of the deviation is indicated in brackets below the referenced clause number. Whereas CSA divides its Standards into “clauses”, NIST PS 2 uses the term “s

39、ection”. The term “section” is accordingly used in these Canadian deviations. Added sections and tables are designated by adding the letter A, B, C, etc., to the applicable NIST PS 2 section or table number and follow the applicable NIST PS 2 section or table (e.g., Section 2.1A follows Section 2.1

40、but precedes Section 2.2). Added text other than entire sections and tables follows the last sentence in the referenced section. 1 Scope1.2Add the followingThis Standard also specifies panel marks that indicate recommended end uses for conforming panels.1.2AAdd the following sectionThis Standard pro

41、vides an alternative to, not a replacement of, other Standards for wood-based panels. The use of the term “construction sheathing” in this Standard is not intended to imply that panels conforming to other CSA Standards (e.g., CSA O121, CSA O151, CSA O153, and CSA O437 Series) are not construction sh

42、eathing panels.2 Terminology2.1A Certification bodyAdd the following sectionA third-party organization that provides a written assurance that a service, process, or product fulfills a specified requirement.2.9A Qualified inspection and testing agencyAdd the following sectionA certification body reco

43、gnized in accordance with ISO/IEC Guide 65.2.19 Test exposure conditionAdd the following paragraphsPhysical, mechanical, and structural properties of wood-based panels depend on the moisture content at the time of test, or the conditioning treatment specified in the test, or both.For qualification t

44、esting (see Section 6), specimens shall be tested “dry as received” or following stipulated conditioning cycle(s).O325-07 Construction sheathingCSA/4 Canadian Standards Association March 20073 Reference publications3.2 Other documentsAdd the followingISO/IEC (International Organization for Standardi

45、zation/International Electrotechnical Commission) Guide 65:1996General requirements for bodies operating product certification systemsNRCC (National Research Council Canada)National Building Code of Canada, 20053.2A CSA StandardsAdd the following sectionWhen reference is made to CSA publications, su

46、ch reference shall be considered to refer to the latest edition and all amendments published to that edition. This Standard refers to the following publications, and the years shown indicate the latest editions available at the time of printing:CAN/CSA-O86-01Engineering design in woodO121-M1978 (R20

47、03)Douglas fir plywoodO151-04Canadian softwood plywoodO153-M1980 (R2003)Poplar plywoodO437 Series-93 (R2006), Standards on OSB and waferboard:O437.0-93 (R2006)OSB and waferboardO437.1-93 (R2006)Test methods for OSB and waferboardO437.2-93 (2006)Evaluation of binder systems for OSB and waferboard4 Cl

48、assification4.1.1.2 Exposure 1Add the followingOriented strand board (OSB) panels classified as Exposure 1 (see Section 6.2.4.1(d) are intended to satisfy the requirements for “Exterior Type” as specified in 9.3.2.4.1 c) of the National Building Code of Canada.Note 1A: Alternative criteria for panel

49、s of Exterior Type quality may be found in CSA O121, CSA O151, CSA O153, and CSAO437.0.O325-07 Construction sheathingMarch 2007 Canadian Standards Association CSA/55 Requirements5.1 GeneralAdd the following noteNote 1A: Structural-use panels represented as conforming to this Standard are defined in a Mill Specification. See Section6.3.5.2.2.1 VeneerReplace this section with the following5.2.2.1.1 Veneer qualityExcept as permitted by Section 5.2.2.1.2, the veneer in plywood panels shall not contain any characteristic exceeding t

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