EN ISO 10211:2017

Thermal bridges in building construction - Heat flows and surface temperatures - Detailed calculations (ISO 10211:2017)

ISO 10211:2017 sets out the specifications for a three-dimensional and a two-dimensional geometrical model of a thermal bridge for the numerical calculation of
-      heat flows, in order to assess the overall heat loss from a building or part of it, and
-      minimum surface temperatures, in order to assess the risk of surface condensation.
These specifications include the geometrical boundaries and subdivisions of the model, the thermal boundary conditions, and the thermal values and relationships to be used.
ISO 10211:2017 is based upon the following assumptions:
-      all physical properties are independent of temperature;
-      there are no heat sources within the building element.
ISO 10211:2017 can also be used for the derivation of linear and point thermal transmittances and of surface temperature factors.
NOTE   Table 1 in the Introduction shows the relative position of ISO 10211:2017 within the set of EPB standards in the context of the modular structure as set out in ISO 52000-1.

Wärmebrücken im Hochbau - Wärmeströme und Oberflächentemperaturen - Detaillierte Berechnungen (ISO 10211:2017)

Dieses Dokument legt die Spezifikationen für geometrische dreidimensionale und zweidimensionale Modelle von Wärmebrücken zur numerischen Berechnung
- von Wärmeströmen zur Abschätzung der Gesamtwärmeverluste eines Gebäudes oder Gebäudeteils und
- der niedrigsten Oberflächentemperaturen zur Abschätzung des Risikos einer Tauwasserbildung fest. Diese Spezifikationen enthalten die geometrischen Grenzen, die Unterteilungen des Modells, die wärmetechnischen Randbedingungen und die zu verwendenden wärmetechnischen Kennwerte und Beziehungen.
Dieses Dokument beruht auf folgenden Annahmen:
- alle physikalischen Eigenschaften sind temperaturunabhängig;
- es gibt keine Wärmequellen im Bauteil.
Dieses Dokument kann auch für die Herleitung von längenbezogenen und punktbezogenen Wärme-durchgangskoeffizienten und von Temperaturfaktoren der Oberflächen angewendet werden.
ANMERKUNG Tabelle 1 in der Einleitung zeigt die relative Einordnung dieses Dokuments innerhalb des EPB-Normenpakets im Kontext der in ISO 52000-1 dargelegten modularen Struktur.

Ponts thermiques dans les bâtiments - Flux thermiques et températures superficielles - Calculs détaillés (ISO 10211:2017)

L'ISO 10211:2017 établit les spécifications sur les modèles géométriques tridimensionnels et bidimensionnels d'un pont thermique, pour le calcul numérique:
-      des flux thermiques, afin d'évaluer la déperdition thermique globale d'un bâtiment ou d'une partie de bâtiment; et
-      des températures superficielles minimales, afin d'évaluer le risque de condensation superficielle.
Ces spécifications incluent les limites du modèle géométrique et ses subdivisions, les conditions aux limites et les valeurs thermiques qui lui sont liées à utiliser.
L'ISO 10211:2017 est basé sur les suppositions suivantes:
-      toutes les propriétés physiques sont indépendantes de la température;
-      absence de source de chaleur à l'intérieur de l'élément de construction.
L'ISO 10211:2017 peut aussi être utilisé pour la détermination des coefficients linéiques ou ponctuels de transmission thermique, ainsi que pour les facteurs de température superficielle.
NOTE       Le Tableau 1 de l'Introduction indique la position relative de l'ISO 10211:2017 dans la série de normes PEB dans le contexte de la structure modulaire définie dans l'ISO 52000‑1.

Toplotni mostovi v stavbah - Toplotni tokovi in površinske temperature - Podrobni izračuni (ISO 10211:2017)

Ta dokument določa specifikacije za tridimenzionalni in dvodimenzionalni
model toplotnega mosta za številski izračun:
– toplotnih tokov za namene ocenjevanja celotne izgube toplote iz stavbe ali njenega dela; in
– najnižjih površinskih temperatur za namene ocenjevanja nevarnosti površinske kondenzacije.
Te specifikacije vključujejo geometrijske omejitve in razdelitve modela, toplotne
mejne pogoje ter toplotne vrednosti in razmerja, ki se uporabljajo.
Ta dokument temelji na naslednjih predpostavkah:
– vse fizične lastnosti so neodvisne od temperature;
– znotraj stavbnega elementa ni nobenih virov toplote.
Ta dokument se lahko uporablja tudi za izpeljavo linearne in točkovne toplotne prehodnosti ter
dejavnikov temperature površine.
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

• Status: Published
• Publication Date: 18-Jul-2017
• Withdrawal Date: 30-Jan-2018
• ICS: 91.120.10 - Thermal insulation of buildings
• Technical Committee: CEN/TC 89 - Thermal performance of buildings and building components
• Drafting Committee: CEN/TC 89 - Thermal performance of buildings and building components
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 19-Jul-2017
• Completion Date: 19-Jul-2017
• Directive: 2010/31/EU - Directive 2010/31/eu of the European Parliament and of the Council of 19 May 2010 on the energy performance of buildings (recast)
• 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 buildings (2010/31/EU)
• Ref Project: SIST EN ISO 10211:2017 - Thermal bridges in building construction - Heat flows and surface temperatures - Detailed calculations (ISO 10211:2017)

Relations

• Replaces: EN ISO 10211:2007 - Thermal bridges in building construction - Heat flows and surface temperatures - Detailed calculations (ISO 10211:2007)
• Effective Date: 26-Jul-2017

Standards Content (Sample)

SLOVENSKI STANDARD
01-september-2017
1DGRPHãþD
SIST EN ISO 10211:2008
7RSORWQLPRVWRYLYVWDYEDK7RSORWQLWRNRYLLQSRYUãLQVNHWHPSHUDWXUH3RGUREQL
L]UDþXQL,62
Thermal bridges in building construction - Heat flows and surface temperatures -
Detailed calculations (ISO 10211:2017)
Wärmebrücken im Hochbau - Wärmeströme und Oberflächentemperaturen - Detaillierte
Berechnungen (ISO 10211:2017)
Ponts thermiques dans les bâtiments - Flux thermiques et températures superficielles -
Calculs détaillés (ISO 10211:2017)
Ta slovenski standard je istoveten z: EN ISO 10211:2017
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 10211
EUROPEAN STANDARD
NORME EUROPÉENNE
July 2017
EUROPÄISCHE NORM
ICS 91.120.10 Supersedes EN ISO 10211:2007
English Version
Thermal bridges in building construction - Heat flows and
surface temperatures - Detailed calculations (ISO
10211:2017)
Ponts thermiques dans les bâtiments - Flux thermiques Wärmebrücken im Hochbau - Wärmeströme und
et températures superficielles - Calculs détaillés (ISO Oberflächentemperaturen - Detaillierte Berechnungen
10211:2017) (ISO 10211:2017)
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 10211:2017 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 10211:2017) 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 10211:2007.
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 2004
[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 10211:2017 has been approved by CEN as EN ISO 10211:2017 without any modification.
INTERNATIONAL ISO
STANDARD 10211
Second edition
2017-06
Thermal bridges in building
construction — Heat flows and surface
temperatures — Detailed calculations
Ponts thermiques dans les bâtiments — Flux thermiques et
températures superficielles — Calculs détaillés
Reference number
ISO 10211:2017(E)
©
ISO 2017
ISO 10211:2017(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.
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ii © ISO 2017 – All rights reserved

ISO 10211:2017(E)
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2  Normative references . 1
3  Terms and definitions . 2
4 Symbols and subscripts . 7
4.1 Symbols . 7
4.2 Subscripts . 7
5  Description of the method . 8
5.1 Output . 8
5.2 General description . 8
6 Output data and input data . 8
6.1 Output data . 8
6.2 Calculation time intervals . 9
6.3 Input data . 9
7  Modelling of the construction . 9
7.1 Dimension systems . 9
7.2 Rules for modelling . 9
7.2.1 General. 9
7.2.2 Cut-off planes for a 3-D geometrical model for calculation of total heat
flow and/or surface temperatures . 9
7.2.3 Cut-off planes for a 2-D geometrical model .
...