EN ISO 13786:2017
(Main)Thermal performance of building components - Dynamic thermal characteristics - Calculation methods (ISO 13786:2017, Corrected version 2018-03)
Thermal performance of building components - Dynamic thermal characteristics - Calculation methods (ISO 13786:2017, Corrected version 2018-03)
ISO 13786:2017 specifies the characteristics related to the dynamic thermal behaviour of a complete building component and provides methods for their calculation. It also specifies the information on building materials required for the use of the building component. Since the characteristics depend on the way materials are combined to form building components, ISO 13786:2017 is not applicable to building materials or to unfinished building components.
The definitions given in ISO 13786:2017 are applicable to any building component. A simplified calculation method is provided for plane components consisting of plane layers of substantially homogeneous building materials.
Annex C provides simpler methods for the estimation of the heat capacities in some limited cases. These methods are suitable for the determination of dynamic thermal properties required for the estimation of energy consumption. These approximations are not appropriate, however, for product characterization.
NOTE Table 1 in the Introduction shows the relative position of ISO 13786:2017 within the set of EPB standards in the context of the modular structure as set out in ISO 52000-1.
Wärmetechnisches Verhalten von Bauteilen - Dynamisch-thermische Kenngrößen - Berechnungsverfahren (ISO 13786:2017)
Dieses Dokument legt die Kenngrößen fest, die mit dem dynamisch-thermischen Verhalten von kompletten Bauteilen in Beziehung stehen und gibt Verfahren für ihre Berechnung an. Sie legt weiterhin fest, welche Informationen über die Baustoffe für die Anwendung des Bauteils erforderlich sind. Da die Kenngrößen von der Art abhängen, wie Baustoffe kombiniert werden, um Bauteile zu bilden, gilt dieses Dokument nicht für Baustoffe oder unfertige Bauteile.
Die in diesem Dokument angegebenen Festlegungen gelten für jedes Bauteil. Ein vereinfachtes Berechnungsverfahren wird für ebene Bauteile, die aus ebenen Schichten weitgehend homogener Baustoffe zusammengesetzt sind, angegeben.
Anhang C enthält vereinfachte Verfahren zur Abschätzung der Wärmekapazitäten für einige Sonderfälle. Diese Verfahren eignen sich zur Bestimmung der dynamisch-thermischen Kenngrößen, die für die Abschätzung des Energiebedarfs benötigt werden. Diese Näherungswerte genügen jedoch nicht für eine Produktcharakterisierung.
Performance thermique des composants de bâtiment - Caractéristiques thermiques dynamiques - Méthodes de calcul (ISO 13786:2017)
L'ISO 13786:2017 spécifie les caractéristiques relatives au comportement thermique dynamique d'un composant de bâtiment à l'état fini et fournit des méthodes pour le calcul de ces caractéristiques. Il spécifie également l'information requise sur les matériaux de construction, pour l'utilisation du composant de bâtiment. Les caractéristiques étant dépendantes de la façon dont les matériaux sont combinés pour constituer des composants de bâtiment, l'ISO 13786:2017 ne s'applique pas à des matériaux de bâtiment ou à des composants de bâtiment inachevés.
Les définitions données dans l'ISO 13786:2017 sont applicables à tout composant de bâtiment. Une méthode de calcul simplifiée est donnée pour des composants plans constitués de couches planes homogènes ou quasi homogènes de matériaux de construction.
L'Annexe C spécifie des méthodes simplifiées pour l'estimation de la capacité thermique dans certains cas limités. En particulier, ces méthodes conviennent pour calculer les propriétés thermiques dynamiques nécessaires à l'estimation de la consommation d'énergie. Cependant, ces approximations ne conviennent pas pour caractériser des produits.
NOTE Le Tableau 1 de l'Introduction indique la position relative de l'ISO 13786:2017 dans la série de normes PEB dans le contexte de la structure modulaire définie dans l'ISO 52000‑1.
Toplotne značilnosti delov stavb - Dinamične toplotne značilnosti - Računske metode (ISO 13786:2017, popravljena različica 2018-03)
Ta dokument določa značilnosti v povezavi z dinamičnim toplotnim obnašanjem zaključenega dela stavbe in podaja metode za njihov izračun. Podaja tudi informacije o gradbenih materialih, potrebnih za uporabo dela stavbe. Ker so značilnosti odvisne od načina kombinirane uporabe materialov za dele stavb, se ta dokument ne uporablja za gradbene materiale ali nedokončane dele stavb.
Določbe, podane v tem dokumentu, se uporabljajo za kateri koli del stavbe. Za ravninske dele z ravninskimi plastmi iz precej homogenih gradbenih materialov je podana poenostavljena računska metoda.
Dodatek C vključuje preprostejše metode za oceno toplotnih značilnosti v nekaterih omejenih primerih. Te metode so ustrezne za ugotavljanje dinamičnih toplotnih značilnosti, ki je potrebno za oceno porabe energije. Vendar ti približki niso primerni za določanje lastnosti proizvodov.
OPOMBA: Preglednica 1 v uvodu prikazuje relativno mesto tega dokumenta znotraj skupine standardov EPB v kontekstu modularne strukture, kot je opredeljeno v standardu ISO 52000-1.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-september-2017
1DGRPHãþD
SIST EN ISO 13786:2008
7RSORWQH]QDþLOQRVWLGHORYVWDYE'LQDPLþQHWRSORWQH]QDþLOQRVWL5DþXQVNH
PHWRGH ,62
Thermal performance of building components - Dynamic thermal characteristics -
Calculation methods (ISO 13786:2017)
Wärmetechnisches Verhalten von Bauteilen - Dynamisch-thermische Kenngrößen -
Berechnungsverfahren (ISO 13786:2017)
Performance thermique des composants de bâtiment - Caractéristiques thermiques
dynamiques - Méthodes de calcul (ISO 13786:2017)
Ta slovenski standard je istoveten z: EN ISO 13786:2017
ICS:
91.120.10 Toplotna izolacija stavb Thermal insulation of
buildings
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 13786
EUROPEAN STANDARD
NORME EUROPÉENNE
July 2017
EUROPÄISCHE NORM
ICS 91.060.01; 91.120.10 Supersedes EN ISO 13786:2007
English Version
Thermal performance of building components - Dynamic
thermal characteristics - Calculation methods (ISO
13786:2017)
Performance thermique des composants de bâtiment - Wärmetechnisches Verhalten von Bauteilen -
Caractéristiques thermiques dynamiques - Méthodes Dynamisch-thermische Kenngrößen -
de calcul (ISO 13786:2017) Berechnungsverfahren (ISO 13786:2017)
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 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 exists 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 standards 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, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR 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 Ref. No. EN ISO 13786:2017 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 13786:2017) 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 is
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 possibility 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 document 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 recasting 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 local 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 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
requirements 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
performance 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 boilers, 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 EPBD 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 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,
policy and legal frameworks. 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 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 classifying the building energy
performance for a dedicated building stock.
This document supersedes EN ISO 13786:2007.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, 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, Slovakia, Slovenia, Spain, Sweden, Switzerland,
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 methodology 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
[EF3] Mandate M/480, Mandate to CEN, CENELEC and ETSI for the elaboration and adoption of
standards for a methodology 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 performance of buildings (2010/31/EU). 14
December 2010
Endorsement notice
The text of ISO 13786:2017 has been approved by CEN as EN ISO 13786:2017 without any modification.
INTERNATIONAL ISO
STANDARD 13786
Third edition
2017-06
Thermal performance of building
components — Dynamic thermal
characteristics — Calculation methods
Performance thermique des composants de bâtiment —
Caractéristiques thermiques dynamiques — Méthodes de calcul
Reference number
ISO 13786:2017(E)
©
ISO 2017
ISO 13786:2017(E)
© ISO 2017, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2017 – All rights reserved
ISO 13786:2017(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
3.1 Definitions valid for any component . 2
3.2 Definitions valid only for one dimensional heat flow . 3
3.3 Other . 5
4 Symbols and subscripts . 5
4.1 Symbols . 5
4.2 Subscripts . 6
4.3 Specific symbols . 6
5 Description of the method . 6
5.1 Output . 6
5.2 General description . 6
6 Calculation of dynamic thermal properties . 6
6.1 Output data . 6
6.2 Calculation time intervals . 7
6.3 Input data . 7
6.4 Period of the thermal variations . 8
6.5 Heat capacity .
...
SLOVENSKI STANDARD
01-september-2017
Nadomešča:
SIST EN ISO 13786:2008
Toplotne značilnosti delov stavb - Dinamične toplotne značilnosti - Računske
metode (ISO 13786:2017, popravljena različica 2018-03)
Thermal performance of building components - Dynamic thermal characteristics -
Calculation methods (ISO 13786:2017, Corrected version 2018-03)
Wärmetechnisches Verhalten von Bauteilen - Dynamisch-thermische Kenngrößen -
Berechnungsverfahren (ISO 13786:2017)
Performance thermique des composants de bâtiment - Caractéristiques thermiques
dynamiques - Méthodes de calcul (ISO 13786:2017)
Ta slovenski standard je istoveten z: EN ISO 13786:2017
ICS:
91.120.10 Toplotna izolacija stavb Thermal insulation of
buildings
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 13786
EUROPEAN STANDARD
NORME EUROPÉENNE
July 2017
EUROPÄISCHE NORM
ICS 91.060.01; 91.120.10 Supersedes EN ISO 13786:2007
English Version
Thermal performance of building components - Dynamic
thermal characteristics - Calculation methods (ISO
13786:2017, Corrected version 2018-03)
Performance thermique des composants de bâtiment - Wärmetechnisches Verhalten von Bauteilen -
Caractéristiques thermiques dynamiques - Méthodes Dynamisch-thermische Kenngrößen -
de calcul (ISO 13786:2017) Berechnungsverfahren (ISO 13786:2017)
This European Standard was approved by CEN on 27 February 2017.
This European Standard was corrected and reissued by the CEN-CENELEC Management Centre on 21 November 2018.
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 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 exists 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 standards 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, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATIO N
EUROPÄISCHES KOMITEE FÜR NORMUN G
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 13786:2017 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 13786:2017) 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 is
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 possibility 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 document 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 recasting 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 local 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 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
requirements 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
performance 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 boilers, 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 EPBD 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 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,
policy and legal frameworks. 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 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 classifying the building energy
performance for a dedicated building stock.
This document supersedes EN ISO 13786:2007.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, 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, Slovakia, Slovenia, Spain, Sweden, Switzerland,
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 methodology 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
[EF3] Mandate M/480, Mandate to CEN, CENELEC and ETSI for the elaboration and adoption of
standards for a methodology 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 performance of buildings (2010/31/EU). 14
December 2010
Endorsement notice
The text of ISO 13786:2017, Corrected version 2018-03 has been approved by CEN as EN
ISO 13786:2017 without any modification.
INTERNATIONAL ISO
STANDARD 13786
Third edition
2017-06
Corrected version
2018-03
Thermal performance of building
components — Dynamic thermal
characteristics — Calculation methods
Performance thermique des composants de bâtiment —
Caractéristiques thermiques dynamiques — Méthodes de calcul
Reference number
ISO 13786:2017(E)
©
ISO 2017
ISO 13786:2017(E)
© ISO 2017, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2017 – All rights reserved
ISO 13786:2017(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
3.1 Definitions valid for any component . 2
3.2 Definitions valid only for one dimensional heat flow . 3
3.3 Other . 5
4 Symbols and subscripts . 5
4.1 Symbols . 5
4.2 Subscripts . 6
4.3 Specific symbols . 6
5 Description of the method . 6
5.1 Output . 6
5.2 General description . 6
6 Calculation of dynamic thermal properties . 6
6.1 Output data . 6
6.2 Calculation time intervals . 7
6.3 Input data . 7
6.4 Period of the thermal variations .
...
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