1、Thermal bridges in building construction - Linear thermal transmittance - Simplified methods and default valuesBS EN ISO 14683:2017BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 14683 July 2017 ICS 91.120.10 S
2、upersedes EN ISO 14683:2007English Version Thermal bridges in building construction - Linear thermal transmittance - Simplified methods and default values (ISO 14683:2017) Ponts thermiques dans les btiments - Coefficient linique de transmission thermique - Mthodes simplifies et valeurs par dfaut (IS
3、O 14683:2017) Wrmebrcken im Hochbau - Lngenbezogener Wrmedurchgangskoeffizient - Vereinfachte Verfahren und Standardwerte (ISO 14683:2017) This European Standard was approved by CEN on 27 February 2017. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the con
4、ditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exis
5、ts in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national sta
6、ndards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slo
7、vakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any mea
8、ns reserved worldwide for CEN national Members. Ref. No. EN ISO 14683:2017 ENational forewordThis British Standard is the UK implementation of EN ISO 14683:2017. It supersedes BS EN ISO 14683:2007, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee B/540/
9、2, Building performance - Moisture.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Insti
10、tution 2017 Published by BSI Standards Limited 2017ISBN 978 0 580 88081 0ICS 91.120.10Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 August 2017.Amendments/
11、corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN ISO 14683:2017EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 14683 July 2017 ICS 91.120.10 Supersedes EN ISO 14683:2007English Version Thermal bridges in building construction - Linear thermal transmittance - Simpli
12、fied methods and default values (ISO 14683:2017) Ponts thermiques dans les btiments - Coefficient linique de transmission thermique - Mthodes simplifies et valeurs par dfaut (ISO 14683:2017) Wrmebrcken im Hochbau - Lngenbezogener Wrmedurchgangskoeffizient - Vereinfachte Verfahren und Standardwerte (
13、ISO 14683:2017) This European Standard was approved by CEN on 27 February 2017. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bi
14、bliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the resp
15、onsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Re
16、public of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPE
17、N DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 14683:2017 EBS EN ISO 14683:2017EN ISO 14683:2017 (E) 2 Eur
18、opean foreword This document (EN ISO 14683:2017) has been prepared by Technical Committee ISO/TC 163 “Thermal performance and energy use in the built environment“ in collaboration with Technical Committee CEN/TC 89 “Thermal performance of buildings and building components” the secretariat of which i
19、s held by SIS. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by January 2018 and conflicting national standards shall be withdrawn at the latest by January 2018. Attention is drawn to the possibili
20、ty that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association. This do
21、cument is part of the set of standards and accompanying technical reports on the energy performance of buildings and has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association (Mandate M/480, see reference EF3 below). Directive 2010/31/EU recast
22、ing the Directive 2002/91/EC on energy performance of buildings (EPBD, EF4) promotes the improvement of the energy performance of buildings within the European Union, taking into account all types of energy uses (heating, lighting, cooling, air conditioning, ventilation) and outdoor climatic and loc
23、al conditions, as well as indoor climate requirements and cost effectiveness (Article 1). The directive requires Member States to adopt measures and tools to achieve the prudent and rational use of energy resources. In order to achieve those goals, the EPBD requires increasing energy efficiency and
24、the enhanced use of renewable energies in both new and existing buildings. One tool for this is the application by Member States of minimum requirements on the energy performance of new buildings and for existing buildings that are subject to major renovation, as well as for minimum performance requ
25、irements for the building envelope if energy-relevant parts are replaced or retrofitted. Other tools are energy certification of buildings, inspection of boilers and air-conditioning systems. The use of European standards increases the accessibility, transparency and objectivity of the energy perfor
26、mance assessment in the Member States facilitating the comparison of best practices and supporting the internal market for construction products. The use of EPB standards for calculating energy performance, as well as for energy performance certification and the inspection of heating systems and boi
27、lers, ventilation and air-conditioning systems will reduce costs compared to developing different standards at national level. The first mandate to CEN to develop a set of CEN EPBD standards (M/343, EF1), to support the first edition of the EPBD (EF2) resulted in the successful publication of all EP
28、BD related CEN standards in 2007-2008. Mandate M/480 was issued to review the mandate M/343 as the recast of the EPBD raised the need to revisit the standards and reformulate and add standards so that they become on the one hand unambiguous and compatible, and on the other hand a clear and explicit
29、overview of the choices, boundary conditions and input data that need to be defined at national or regional level. Such national or regional choices remain necessary, due to differences in climate, culture and building tradition, BS EN ISO 14683:2017EN ISO 14683:2017 (E) 3 policy and legal framework
30、s. Consequently, the set of CEN EPBD standards published in 2007-2008 had to be improved and expanded on the basis of the recast of the EPBD. The EPB standards are flexible enough to allow for necessary national and regional differentiation and facilitate Member States implementation and the setting
31、 of requirements by the Member States. Further target groups are users of the voluntary common European Union certification scheme for the energy performance of non-residential buildings (EPBD article 11.9) and any other regional (e.g. pan European) parties wanting to motivate their assumptions by c
32、lassifying the building energy performance for a dedicated building stock. This document supersedes EN ISO 14683:2007. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, B
33、ulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Swit
34、zerland, Turkey and the United Kingdom. References: EF1 EPBD, Directive 2002/91/EC of the European Parliament and of the Council of 16 December 2002 on the energy performance of buildings EF2 EPBD Mandate M/343, Mandate to CEN, CENELEC and ETSI for the elaboration and adoption of standards for a met
35、hodology calculating the integrated energy performance of buildings and estimating the environmental impact, in accordance with the terms set forth in Directive 2002/91/EC , 30 January 2004 EF3 Mandate M/480, Mandate to CEN, CENELEC and ETSI for the elaboration and adoption of standards for a method
36、ology calculating the integrated energy performance of buildings and promoting the energy efficiency of buildings, in accordance with the terms set in the recast of the Directive on the energy performance of buildings (2010/31/EU), 14 December 2010 EF4 EPBD, Recast of the Directive on the energy per
37、formance of buildings (2010/31/EU). 14 December 2010 Endorsement notice The text of ISO 14683:2017 has been approved by CEN as EN ISO 14683:2017 without any modification. BS EN ISO 14683:2017This page deliberately left blank ISO 14683:2017(E)Foreword ivIntroduction v1 Scope . 12 Normative references
38、 13 Terms and definitions . 14 Symbols and subscripts . 24.1 Symbols . 24.2 Subscripts 35 Description of the method 35.1 Output . 35.2 General description . 35.3 Influence of thermal bridges on overall heat transfer 35.3.1 Transmission heat transfer coefficient . 35.3.2 Linear thermal transmittance
39、45.3.3 Internal and external dimensions . 46 Methods for determination of linear thermal transmittance . 56.1 Output data 56.2 Calculation time intervals 56.3 Input data 56.4 Available methods and expected accuracy . 66.5 Numerical calculations . 66.6 Thermal bridge catalogues . 66.7 Manual calculat
40、ion methods . 77 Default values of linear thermal transmittance . 7Annex A (normative) Input and method selection data sheet Template . 8Annex B (informative) Input and method selection data sheet Default choices 10Annex C (normative) Default values of linear thermal transmittance .12Bibliography .2
41、5 ISO 2017 All rights reserved iiiContents PageISO 14683:2017(E)Foreword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 14 Symbols and subscripts . 24.1 Symbols . 24.2 Subscripts 35 Description of the method 35.1 Output . 35.2 General description . 35.3 Influence of the
42、rmal bridges on overall heat transfer 35.3.1 Transmission heat transfer coefficient . 35.3.2 Linear thermal transmittance 45.3.3 Internal and external dimensions . 46 Methods for determination of linear thermal transmittance . 56.1 Output data 56.2 Calculation time intervals 56.3 Input data 56.4 Ava
43、ilable methods and expected accuracy . 66.5 Numerical calculations . 66.6 Thermal bridge catalogues . 66.7 Manual calculation methods . 77 Default values of linear thermal transmittance . 7Annex A (normative) Input and method selection data sheet Template . 8Annex B (informative) Input and method se
44、lection data sheet Default choices 10Annex C (normative) Default values of linear thermal transmittance .12Bibliography .25 ISO 2017 All rights reserved iiiContents PageBS EN ISO 14683:2017ISO 14683:2017(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of
45、national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. Inte
46、rnational organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those int
47、ended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see ww
48、w .iso .org/ directives).Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the docume
49、nt will be in the Introduction and/or on the ISO list of patent declarations received (see www .iso .org/ patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the followin
