EN ISO 14683:2017

Thermal bridges in building construction - Linear thermal transmittance - Simplified methods and default values (ISO 14683:2017)

ISO 14683:2007 deals with simplified methods for determining heat flows through linear thermal bridges which occur at junctions of building elements.
ISO 14683:2007 specifies requirements relating to thermal bridge catalogues and manual calculation methods.
Default values of linear thermal transmittance are given in Annex A for information.

Wärmebrücken im Hochbau - Längenbezogener Wärmedurchgangskoeffizient - Vereinfachte Verfahren und Standardwerte (ISO 14683:2017)

Dieses Dokument behandelt vereinfachte Verfahren zur Bestimmung der Wärmeströme durch linienförmige Wärmebrücken, die an Bauteilverbindungen auftreten.
Dieses Dokument legt Anforderungen an Wärmebrückenkataloge und manuelle Berechnungsverfahren fest.
Im Anhang C sind Standardwerte des längenbezogenen Wärmedurchgangskoeffizienten angegeben.
ANMERKUNG   Tabelle 1 in der Einleitung zeigt die relative Position dieses Dokuments innerhalb des EPB Normen-pakets im Kontext der in ISO 52000 1 dargelegten modularen Struktur.

Ponts thermiques dans les bâtiments - Coefficient linéique de transmission thermique - Méthodes simplifiées et valeurs par défaut (ISO 14683:2017)

L'ISO 14683:2017 traite des méthodes simplifiées pour la détermination des flux thermiques à travers les ponts thermiques linéaires qui se produisent aux jonctions de parois de bâtiments.
L'ISO 14683:2017 spécifie des exigences concernant les catalogues de ponts thermiques et les méthodes manuelles de calcul.
Les valeurs par défaut du coefficient linéique de transmission thermique sont indiquées dans l'Annexe C.
NOTE       Le Tableau 1 de l'Introduction indique la position relative de l'ISO 14683:2017 dans la série de normes PEB dans le contexte de la structure modulaire définie dans l'ISO 52000‑1.

Toplotni mostovi v stavbah - Linearna toplotna prehodnost - Poenostavljena metoda in privzete vrednosti (ISO 14683:2017)

ISO 14683:2007 obravnava poenostavljene metode za določevanje toplotnih tokov skozi linearne toplotne mostove ob spojih stavbnih elementov.
ISO 14683:2007 določa zahteve v povezavi s katalogi toplotnih mostov in ročnimi računskimi metodami. Privzete vrednosti linearne toplotne prehodnosti so informativno podane v dodatku A.

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)
• Directive: 89/106/EEC - Construction products
• 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 14683:2017 - Thermal bridges in building construction - Linear thermal transmittance - Simplified methods and default values (ISO 14683:2017)

Relations

• Replaces: EN ISO 14683:2007 - Thermal bridges in building construction - Linear thermal transmittance - Simplified methods and default values (ISO 14683:2007)
• Effective Date: 26-Jul-2017

Standards Content (Sample)

SLOVENSKI STANDARD
01-september-2017
1DGRPHãþD
SIST EN ISO 14683:2008
Toplotni mostovi v stavbah - Linearna toplotna prehodnost - Poenostavljena
metoda in privzete vrednosti (ISO 14683:2017)
Thermal bridges in building construction - Linear thermal transmittance - Simplified
methods and default values (ISO 14683:2017)
Wärmebrücken im Hochbau - Längenbezogener Wärmedurchgangskoeffizient -
Vereinfachte Verfahren und Anhaltswerte (ISO 14683:2017)
Ponts thermiques dans les bâtiments - Coefficient linéique de transmission thermique -
Méthodes simplifiées et valeurs par défaut (ISO 14683:2017)
Ta slovenski standard je istoveten z: EN ISO 14683:2017
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 14683
EUROPEAN STANDARD
NORME EUROPÉENNE
July 2017
EUROPÄISCHE NORM
ICS 91.120.10 Supersedes EN ISO 14683:2007
English Version
Thermal bridges in building construction - Linear thermal
transmittance - Simplified methods and default values (ISO
14683:2017)
Ponts thermiques dans les bâtiments - Coefficient Wärmebrücken im Hochbau - Längenbezogener
linéique de transmission thermique - Méthodes Wärmedurchgangskoeffizient - Vereinfachte Verfahren
simplifiées et valeurs par défaut (ISO 14683:2017) 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 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 14683:2017 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European 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 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 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, 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 14683:2017 has been approved by CEN as EN ISO 14683:2017 without any modification.

INTERNATIONAL ISO
STANDARD 14683
Third edition
2017-06
Thermal bridges in building
construction — Linear thermal
transmittance — Simplified methods
and default values
Ponts thermiques dans les bâtiments — Coefficient linéique de
transmission thermique — Méthodes simplifiées et valeurs par défaut
Reference number
ISO 14683:2017(E)
©
ISO 2017
ISO 14683:2017(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
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ii © ISO 2017 – All rights reserved

ISO 14683:2017(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and subscripts . 2
4.1 Symbols . 2
4.2 Subscripts . 3
5 Description of the method . 3
5.1 Output . 3
5.2 General description . 3
5.3 Influence of thermal bridges on overall heat transfer . 3
5.3.1 Transmission heat transfer coefficient . 3
5.3.2 Linear thermal transmittance . 4
5.3.3 Internal and external dimensions . 4
6 Methods for determination of linear thermal transmittance . 5
6.1 Output data . 5
6.2 Calculation time intervals . 5
6.3 Input data . 5
6.4 Available methods and expected accuracy . 6
6.5 Numerical calculations . 6
6.6 Thermal bridg
...