ASHRAE 160 ADD A-2011 Criteria for Moisture-Control Design Analysis in Buildings.pdf

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1、ASHRAE ADDENDAANSI/ASHRAE Addendum a toANSI/ASHRAE Standard 160-2009Criteria for Moisture-Control Design Analysis in BuildingsApproved by the ASHRAE Standards Committee on January 29, 2011; by the ASHRAE Board of Directors onFebruary 2, 2011; and by the American National Standards Institute on Febru

2、ary 3, 2011. This addendum was approved by a Standing Standard Project Committee (SSPC) for which the StandardsCommittee has established a documented program for regular publication of addenda or revisions, includingprocedures for timely, documented, consensus action on requests for change to any pa

3、rt of the standard. Thechange submittal form, instructions, and deadlines may be obtained in electronic form from the ASHRAE Website (www.ashrae.org) or in paper form from the Manager of Standards. The latest edition of an ASHRAE Standard may be purchased on the ASHRAE Web site (www.ashrae.org) orfr

4、om ASHRAE Customer Service, 1791 Tullie Circle, NE, Atlanta, GA 30329-2305. E-mail:ordersashrae.org. Fax: 404-321-5478. Telephone: 404-636-8400 (worldwide), or toll free 1-800-527-4723(for orders in US and Canada). For reprint permission, go to www.ashrae.org/permissions. 2011 American Society of He

5、ating, Refrigerating and Air-Conditioning Engineers, Inc.ISSN 1041-2336American Society of Heating, Refrigeratingand Air-Conditioning Engineers, Inc.1791 Tullie Circle NE, Atlanta, GA 30329www.ashrae.orgSPECIAL NOTEThis American National Standard (ANS) is a national voluntary consensus standard deve

6、loped under the auspices of the AmericanSociety of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE). Consensus is defined by the American National StandardsInstitute (ANSI), of which ASHRAE is a member and which has approved this standard as an ANS, as “substantial agreement reached by

7、directly and materially affected interest categories. This signifies the concurrence of more than a simple majority, but not necessarily unanimity.Consensus requires that all views and objections be considered, and that an effort be made toward their resolution.” Compliance with thisstandard is volu

8、ntary until and unless a legal jurisdiction makes compliance mandatory through legislation.ASHRAE obtains consensus through participation of its national and international members, associated societies, and public review.ASHRAE Standards are prepared by a Project Committee appointed specifically for

9、 the purpose of writing the Standard. The ProjectCommittee Chair and Vice-Chair must be members of ASHRAE; while other committee members may or may not be ASHRAE members, allmust be technically qualified in the subject area of the Standard. Every effort is made to balance the concerned interests on

10、all ProjectCommittees. The Assistant Director of Technology for Standards and Special Projects of ASHRAE should be contacted for:a. interpretation of the contents of this Standard,b. participation in the next review of the Standard,c. offering constructive criticism for improving the Standard, ord.

11、permission to reprint portions of the Standard.DISCLAIMERASHRAE uses its best efforts to promulgate Standards and Guidelines for the benefit of the public in light of available information andaccepted industry practices. However, ASHRAE does not guarantee, certify, or assure the safety or performanc

12、e of any products, components,or systems tested, installed, or operated in accordance with ASHRAEs Standards or Guidelines or that any tests conducted under itsStandards or Guidelines will be nonhazardous or free from risk.ASHRAE INDUSTRIAL ADVERTISING POLICY ON STANDARDSASHRAE Standards and Guideli

13、nes are established to assist industry and the public by offering a uniform method of testing for ratingpurposes, by suggesting safe practices in designing and installing equipment, by providing proper definitions of this equipment, and by providingother information that may serve to guide the indus

14、try. The creation of ASHRAE Standards and Guidelines is determined by the need for them,and conformance to them is completely voluntary.In referring to this Standard or Guideline and in marking of equipment and in advertising, no claim shall be made, either stated or implied,that the product has bee

15、n approved by ASHRAE.ASHRAE Standing Standard Project Committee 160Cognizant TC: TC 4.4, Building Materials and Building Envelope PerformanceSPLS Liaison: William F. Walter*Denotes members of voting status when the document was approved for publication.Anton TenWolde, Chair* Wahid MarefWilliam B. Ro

16、se, Secretary* Richard E. Peters*Lixing Gu* Elbert G. Phillips*Jonathan Humble* Paul H. Shipp*Achilles N. Karagiozis* Theresa A. Weston*Hartwig M. Kuenzel*ASHRAE STANDARDS COMMITTEE 20102011Stephanie Reiniche, Manager of StandardsH. Michael Newman, Chair Allan B. Fraser Janice C. PetersonCarol E. Ma

17、rriott, Vice-Chair Krishnan Gowri Douglas T. ReindlDouglass S. Abramson Maureen Grasso Boggarm S. SettyKarim Amrane Cecily M. Grzywacz James R. TaubyRobert G. Baker Richard L. Hall James K. VallortHoy R. Bohanon, Jr. Nadar R. Jayaraman William F. WalterSteven F. Bruning Byron W. Jones Michael W. Woo

18、dfordKenneth W. Cooper Jay A. Kohler Craig P. WrayMartin Dieryckx Frank Myers Hugh F. Crowther, BOD ExOWilliam P. Bahnfleth, COANSI/ASHRAE Addendum a to ANSI/ASHRAE Standard 160-2009 1(This foreword is not part of this standard. It is merelyinformative and does not contain requirements necessaryfor

19、conformance to the standard. It has not beenprocessed according to the ANSI requirements for astandard and may contain material that has not beensubject to public review or a consensus process.Unresolved objectors on informative material are notoffered the right to appeal at ASHRAE or ANSI.)FOREWORD

20、In this addendum, the three required conditions for mini-mizing mold growth are modified by retaining only the mostsignificant condition while eliminating the other two. Thischange has been made because 1) the condition being retained(item a) is sufficient for determining the onset of mold growth,2)

21、 one of the conditions being deleted (item b) was erroneous,and 3) the other condition being removed (item c) is not ger-mane to determining mold growth. In addition, this changewill make the standard easier to use. Note: In this addendum, changes to the current standardare indicated in the text by

22、underlining (for additions) andstrikethrough (for deletions) unless the instructions specifi-cally mention some other means of indicating the changes.Revise Section 6.1 as shown.6.1 Conditions Necessary to Minimize Mold Growth. Inorder to minimize problems associated with mold growth onthe surfaces

23、of components of building envelope assemblies,all of the following conditions shall be met:the following con-dition shall be met: a 30-day running average surface RH 80% when the 30-day running average surface temperature isbetween 5C (41F) and 40C (104F).B-22a. 30-day running average surface RH 80%

24、 when the 30-day running average surface temperature is between 5C(41F) and 40C (104F)b. 7-day running average surface RH 98% when the 7-dayrunning average surface temperature is between 5C(41F) and 40C (104F)c. 24-h running average surface RH 100% when the 24-hrunning average surface temperature is

25、 between 5C(41F) and 40C (104F)Materials that are naturally resistant to mold or have beenchemically treated to resist mold growth may be able to resisthigher surface relative humidities and/or to resist for longerperiods as specified by the manufacturer. The criteria used inthe evaluation shall be

26、stated in the report.Addendum a to Standard 160-2009 American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. (www.ashrae.org). For personal use only. Additional reproduction, distribution, or transmission in either print or digital form is not permitted without ASHRAEs prior

27、written permission.POLICY STATEMENT DEFINING ASHRAES CONCERNFOR THE ENVIRONMENTAL IMPACT OF ITS ACTIVITIESASHRAE is concerned with the impact of its members activities on both the indoor and outdoor environment. ASHRAEsmembers will strive to minimize any possible deleterious effect on the indoor and

28、 outdoor environment of the systems andcomponents in their responsibility while maximizing the beneficial effects these systems provide, consistent with acceptedstandards and the practical state of the art.ASHRAEs short-range goal is to ensure that the systems and components within its scope do not

29、impact the indoor andoutdoor environment to a greater extent than specified by the standards and guidelines as established by itself and otherresponsible bodies.As an ongoing goal, ASHRAE will, through its Standards Committee and extensive technical committee structure,continue to generate up-to-dat

30、e standards and guidelines where appropriate and adopt, recommend, and promote those newand revised standards developed by other responsible organizations.Through its Handbook, appropriate chapters will contain up-to-date standards and design considerations as the material issystematically revised.A

31、SHRAE will take the lead with respect to dissemination of environmental information of its primary interest and will seekout and disseminate information from other responsible organizations that is pertinent, as guides to updating standards andguidelines.The effects of the design and selection of eq

32、uipment and systems will be considered within the scope of the systemsintended use and expected misuse. The disposal of hazardous materials, if any, will also be considered.ASHRAEs primary concern for environmental impact will be at the site where equipment within ASHRAEs scopeoperates. However, energy source selection and the possible environmental impact due to the energy source and energytransportation will be considered where possible. Recommendations concerning energy source selection should be made byits members.2/2011