EN ISO 6946:2007

Building components and building elements - Thermal resistance and thermal transmittance - Calculation method (ISO 6946:2007)

ISO 6946:2007 provides the method of calculation of the thermal resistance and thermal transmittance of building components and building elements, excluding doors, windows and other glazed units, curtain walling, components which involve heat transfer to the ground, and components through which air is designed to permeate.
The calculation method is based on the appropriate design thermal conductivities or design thermal resistances of the materials and products for the application concerned.
The method applies to components and elements consisting of thermally homogeneous layers (which can include air layers).
ISO 6946:2007 also provides an approximate method that can be used for elements containing inhomogeneous layers, including the effect of metal fasteners, by means of a correction term given in Annex D. Other cases where insulation is bridged by metal are outside the scope of ISO 6946:2007.

Bauteile - Wärmedurchlasswiderstand und Wärmedurchgangskoeffizient - Berechnungsverfahren (ISO 6946:2007)

Diese Internationale Norm legt das Verfahren zur Berechnung des Wärmedurchlasswiderstandes und des Wärme¬durchgangskoeffizienten von Bauteilkomponenten und Bauteilen fest. Davon ausgenommen sind Türen, Fenster und andere verglaste Einheiten, Vorhangfassaden, an das Erdreich grenzende Bauteilkomponenten und Lüftungselemente.
Das Berechnungsverfahren beruht auf den Bemessungswerten der Wärmeleitfähigkeit oder Wärme¬durchlasswiderstände der Baustoffe und Produkte für die jeweilige Anwendung.
Das Verfahren gilt für Bauteilkomponenten und Bauteile aus thermisch homogenen Schichten (die auch Luftschichten enthalten können).
Diese Norm gibt auch ein Näherungsverfahren für Bauteile mit inhomogenen Schichten an. Die Wirkung von mechanischen Befestigungselementen wird durch den in Anhang D angegebenen Korrekturfaktor berücksichtigt. Andere Fälle, in denen die Wärmedämmung von einer metallischen Schicht durchdrungen sind, sind nicht Gegenstand dieser Norm.

Composants et parois de bâtiments - Résistance thermique et coefficient de transmission thermique - Méthode de calcul (ISO 6946:2007)

L'ISO 6946:2007 fournit la méthode de calcul de la résistance thermique et du coefficient de transmission thermique des composants et parois de bâtiments, à l'exclusion des portes, des fenêtres et autres parois vitrées, des murs-rideaux, des composants qui mettent en jeu un transfert de chaleur vers le sol et des composants parcourus par l'air de ventilation du bâtiment.
La méthode de calcul est basée sur les conductivités thermiques utiles ou résistances thermiques utiles appropriées des matériaux et produits pour l'application concernée.
La méthode s'applique aux composants et parois constitués de couches thermiquement homogènes (qui peuvent comprendre des lames d'air).
L'ISO 6946:2007 fournit aussi une méthode approchée, qui peut être appliquée pour les parois comportant des couches hétérogènes et qui tient compte de l'effet des fixations métalliques, par l'utilisation d'un terme de correction. Les autres cas, où l'isolation est traversée par du métal, sont en dehors du domaine d'application de la l'ISO 6946:2007.

Gradbene komponente in gradbeni elementi - Toplotna upornost in toplotna prehodnost - Računska metoda (ISO 6946:2007)

General Information

• Status: Withdrawn
• Publication Date: 14-Dec-2007
• Withdrawal Date: 18-Jul-2017
• ICS: 91.060.01 - Elements of buildings in general
• 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: 9960 - Withdrawal effective - Withdrawal
• Completion Date: 19-Jul-2017
• Directive: 305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
• Directive: 89/106/EEC - Construction products
• Mandate: M/106 - Mandate to CEN/CENELEC concerning the execution of standardization work for harmonized standards on gypsum products
• Mandate: M/108 - Mandate to CEN/CENELEC concerning the execution of standardization work for harmonized standards on curtain walling
• Mandate: M/113 - Mandate to CEN/CENELEC concerning the execution of standardization work for harmonized standards on wood based panels
• Mandate: M/116 - Mandate to CEN/CENELEC concerning the execution of standardization work for harmonized standards on masonry and related products
• Ref Project: SIST EN ISO 6946:2008 - Building components and building elements - Thermal resistance and thermal transmittance - Calculation method (ISO 6946:2007)

Relations

• Replaces: EN ISO 6946:1996/A1:2003 - Building components and building elements - Thermal resistance and thermal transmittance - Calculation method (ISO 6946:1996/Amd. 1:2003)
• Effective Date: 22-Dec-2008
• Replaces: EN ISO 6946:1996 - Building components and building elements - Thermal resistance and thermal transmittance - Calculation method (ISO 6946:1996)
• Effective Date: 22-Dec-2008
• Replaced By: EN ISO 6946:2017 - Building components and building elements - Thermal resistance and thermal transmittance - Calculation methods (ISO 6946:2017, Corrected version 2021-12)
• Effective Date: 07-May-2014

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 6946:2008
01-junij-2008
1DGRPHãþD
SIST EN ISO 6946:1997
SIST EN ISO 6946:1997/A1:2003
*UDGEHQHNRPSRQHQWHLQJUDGEHQLHOHPHQWL7RSORWQDXSRUQRVWLQWRSORWQD
SUHKRGQRVW5DþXQVNDPHWRGD,62
Building components and building elements - Thermal resistance and thermal
transmittance - Calculation method (ISO 6946:2007)
Bauteile - Wärmedurchlasswiderstand und Wärmedurchgangskoeffizient -
Berechnungsverfahren (ISO 6946:2007)
Composants et parois de bâtiments - Résistance thermique et coefficient de
transmission thermique - Méthode de calcul (ISO 6946:2007)
Ta slovenski standard je istoveten z: EN ISO 6946:2007
ICS:
91.060.01 Stavbni elementi na splošno Elements of buildings in
general
91.120.10 Toplotna izolacija stavb Thermal insulation
SIST EN ISO 6946:2008 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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EUROPEAN STANDARD
EN ISO 6946
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2007
ICS 91.060.01; 91.120.10 Supersedes EN ISO 6946:1996
English Version
Building components and building elements - Thermal
resistance and thermal transmittance - Calculation method (ISO
6946:2007)
Composants et parois de bâtiments - Résistance thermique Bauteile - Wärmedurchlasswiderstand und
et coefficient de transmission thermique - Méthode de Wärmedurchgangskoeffizient - Berechnungsverfahren (ISO
calcul (ISO 6946:2007) 6946:2007)
This European Standard was approved by CEN on 7 December 2007.
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 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 Management Centre has the same status as the
official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2007 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 6946:2007: E
worldwide for CEN national Members.

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EN ISO 6946:2007 (E)
Contents Page
Foreword.3

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EN ISO 6946:2007 (E)
Foreword
This document (EN ISO 6946:2007) 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 June 2008, and conflicting national standards shall be withdrawn at
the latest by June 2008.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 6946:1996.
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, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
Endorsement notice
The text of ISO 6946:2007 has been approved by CEN as a EN ISO 6946:2007 without any modification.

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INTERNATIONAL ISO
STANDARD 6946
Second edition
2007-12-15


Building components and building
elements — Thermal resistance and
thermal transmittance — Calculation
method
Composants et parois de bâtiments — Résistance thermique et
coefficient de transmission thermique — Méthode de calcul




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