CSA Z240 10 1-2008 Site preparation foundation and anchorage of manufactured homes (Third Edition).pdf

1、Z240.10.1-08(reaffirmed 2013)Site preparation, foundation, and anchorage of manufactured homesLegal Notice for StandardsCanadian Standards Association (CSA) standards are developed through a consensus standards development process approved by the Standards Council of Canada. This process brings toge

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15、rint 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 such copies, and only if this Legal Notice appears on each such copy.In addition, users may not and may not permit others to.alter this document in any way

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17、the contents hereof, and if you do make such copies, you are required to destroy them immediately. Use of this document constitutes your acceptance of the terms and conditions of this Legal Notice.Standards Update ServiceZ240.10.1-08March 2008Title: Site preparation, foundation, and anchorage of man

18、ufactured homesPagination: 40 pages (vi preliminary and 34 text), each dated March 2008To register for e-mail notification about any updates to this publicationgo to shop.csa.caclick on CSA Update ServiceThe List ID that you will need to register for updates to this publication is 2020027.If you req

19、uire 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 2008 by Canadian Standards AssociationA not-for-profit private sector organization5060 Spectrum

20、 Way, Suite 100, Mississauga, Ontario, Canada L4W 5N61-800-463-6727 416-747-4044Visit our Online Store at www.ShopCSA.caZ240.10.1-08Site preparation, foundation, and anchorage of manufactured homesCSA Standard100%ISBN 978-1-55436-347-6Technical Editor: Vanessa A. Mitchell Canadian Standards Associat

21、ion 2008All rights reserved. No part of this publication may be reproduced in any form whatsoever without the prior permission of the publisher.To purchase CSA Standards and related publications, visit CSAs Online Store at www.ShopCSA.ca or call toll-free 1-800-463-6727 or 416-747-4044.The Canadian

22、Standards Association (CSA) prints its publications on Rolland Enviro100, which contains 100% recycled post-consumer fibre, is EcoLogo and Processed Chlorine Free certified, and was manufactured using biogas energy.March 2008 iiiContents Canadian Standards AssociationSite preparation, foundation, an

23、danchorage of manufactured homesTechnical Committee on Factory Certification of Buildings ivPreface vi1Scope 12 Reference publications 13 Definitions 24 General requirements 24.1 Compliance 24.2 Documentation of alternative solutions 34.3 Equivalency 35 Site preparation 35.1 General 35.2 Clearance 4

24、6Foundations 46.1 General 56.2 Footings 56.3 Frost action 56.4 Pier and pile foundations 66.5 Other foundation systems 77 Anchorage to resist overturning 78 Connection of multiple-section units 88.1 General 88.2 Structural requirements 88.3 Air and vapour barriers 88.4 Weathertightness 98.5 Firestop

25、ping of concealed spaces 99 Skirting 99.1 Installation 99.2 Ventilation of crawl space 9AnnexesA (informative) Site preparation 12B (informative) Foundations 13C (informative) Anchorage systems 23D (informative) Multiple-section units 29E (informative) Skirting 32Tables1 Minimum footing areas (concr

26、ete and wood footings), m2 (ft2 ) 102 Wind exposure factor, Ce10Figures1 Minimum footing areas (concrete and wood footings), m2 11Z240.10.1-08 Canadian Standards Associationiv March 2008Technical Committee on Factory Certification of BuildingsP. Aitchison Triple M Housing Ltd.,Lethbridge, AlbertaCha

27、irA. Chown Canadian Codes Centre, National Research Council Canada,Ottawa, OntarioVice-ChairD. Ball Brookswood Homes,Langley, British ColumbiaN. Belrechid National Research Council Canada,Ottawa, OntarioAssociateJ. Brothers Ontario Manufactured Housing Association,Strathroy, OntarioAssociateW.E. Bur

28、ningham Bowmanville, OntarioConsumer RepresentativeJ. Coppens Guildcrest Homes,Morewood, OntarioD. Cormier Kent Homes Limited,A Division of J.D. Irving Limited,Bouctouche, New BrunswickD. Darling Prestige Homes, Sussex, New BrunswickJ. Einarson Yukon Department of Community Services,Whitehorse, Yuko

29、nA. Gagn LAssociation provinciale des constructeurs dhabitations du Qubec,Anjou, QubecAssociateJ.T. Gryffyn Ontario Ministry of Municipal Affairs and Housing,Toronto, OntarioK. Habib CSA International,Edmonton, AlbertaAssociateF.G. Higgs Manufactured Housing Association ofBritish Columbia,Pitt Meado

30、ws, British ColumbiaAssociateM. Hunter GLP Canada,Oakville, Ontario Canadian Standards AssociationSite preparation, foundation, andanchorage of manufactured homesMarch 2008 vA.R. Khan Alberta Ministry of Municipal Affairs and Housing,Edmonton, AlbertaN. Kummerlen Moen Incorporated,North Olmsted, Ohi

31、o, USAAssociateK. Maynard Canadian Manufactured Housing Institute,Ottawa, OntarioS. Nigro Modular/Manufactured Housing Association of Alberta and Saskatchewan,Edmonton, AlbertaAssociateK. Rauch Cobourg, OntarioConsumer RepresentativeH. Starno MHI Canada,Ottawa, OntarioB. Wells Parkbridge Communities

32、,Freelton, OntarioY. Williams Manufactured Housing Association of Atlantic Canada,Moncton, New BrunswickAssociateR.S. Wilson City of Fredericton,Fredericton, New BrunswickV.A. Mitchell Canadian Standards Association,Mississauga, OntarioProject ManagerZ240.10.1-08 Canadian Standards Associationvi Mar

33、ch 2008PrefaceThis is the third edition of CSA Z240.10.1, Site preparation, foundation, and anchorage of manufactured homes. It supersedes the previous editions, published in 1994 and 1986 under the title Site Preparation, Foundation, and Anchorage of Mobile Homes.This Standard is intended to be ref

34、erenced by regulatory authorities, landlease community owners, and others so that improved on-site installation of manufactured homes can be achieved.This Standard is considered suitable for use for conformity assessment within the stated scope of the Standard.This Standard was prepared by the Techn

35、ical Committee on Factory Certification of Buildings, under the jurisdiction of the Strategic Steering Committee on Building Products and Systems, and has been formally approved by the Technical Committee.March 2008Notes: (1) Use of the singular does not exclude the plural (and vice versa) when the

36、sense allows.(2) Although the intended primary application of this Standard is stated in its Scope, it is important to note that it remains the responsibility of the users of the Standard to judge its suitability for their particular purpose.(3) This publication was developed by consensus, which is

37、defined by CSA Policy governing standardization Code of good practice for standardization as “substantial agreement. Consensus implies much more than a simple majority, but not necessarily unanimity”. It is consistent with this definition that a member may be included in the Technical Committee list

38、 and yet not be in full agreement with all clauses of this publication.(4) CSA Standards are subject to periodic review, and suggestions for their improvement will be referred to the appropriate committee.(5) All enquiries regarding this Standard, including requests for interpretation, should be add

39、ressed to Canadian Standards Association, 5060 Spectrum Way, Suite 100, Mississauga, Ontario, Canada L4W 5N6. Requests for interpretation should(a) define the problem, making reference to the specific clause, and, where appropriate, include an illustrative sketch;(b) provide an explanation of circum

40、stances surrounding the actual field condition; and(c) be phrased where possible to permit a specific “yes” or “no” answer.Committee interpretations are processed in accordance with the CSA Directives and guidelines governing standardization and are published in CSAs periodical Info Update, which is

41、 available on the CSA Web site at www.csa.ca. Canadian Standards AssociationSite preparation, foundation, andanchorage of manufactured homesMarch 2008 1Z240.10.1-08Site preparation, foundation, and anchorage of manufactured homes1Scope1.1This Standard applies to manufactured and modular homes design

42、ed to be supported on longitudinal floor beams.Note: For simplicity, the term “manufactured home” is used in this Standard to refer to both manufactured homes and modular homes.1.2This Standard includes requirements for the following aspects of manufactured home installation:(a) site preparation;(b)

43、 foundations for single- and multiple-section single-storey units;(c) anchorage;(d) connection of multiple-section units; and(e) skirting.1.3This Standard is intended to be used by installers, inspectors, and owners of manufactured homes.1.4Foundation systems designed and constructed in accordance w

44、ith this Standard are permanent installations.1.5In CSA Standards, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; “should” is used to express a recommendation or that which is advised but not required; “may” is us

45、ed to express an option or that which is permissible within the limits of the standard; and “can” is used to express possibility or capability. Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text

46、 explanatory or informative material. Notes to tables and figures are considered part of the table or figure and may be written as requirements. Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.1.6The values given in SI (metric) units are the st

47、andard. The values given in parentheses are for information only.2 Reference publicationsThis Standard refers to the following publications, and where such reference is made, it shall be to the edition listed below, including all amendments published thereto:Z240.10.1-08 Canadian Standards Associati

48、on2 March 2008CSA (Canadian Standards Association)O80.15-97 (R2002) (part of O80 Series-97 (R2002), Wood preservation)Preservative treatment of wood for building foundation systems, basements, and crawl spaces by pressure processesZ240 MH Series (under development)Manufactured homesZ240.2.1 (under d

49、evelopment)Structural requirements for manufactured homesCGSB (Canadian General Standards Board)CAN/CGSB 51.34-M86Vapour Barrier, Polyethylene Sheet for Use in Building ConstructionNRCC (National Research Council Canada)National Building Code of Canada, 2005Other publicationsBoyd, D.W. Normal freezing and thawing degree-days for Canada. Environment Canada, 1973.Brown, W.G. “Difficulties associated with predicting depth of freeze or thaw”. Canadian Geotechnical Journal, 1964: Vol. 1, No. 4.3 DefinitionsThe following definitions apply in this Stand