Thermal performance of windows, doors and shutters - Calculation of thermal transmittance - Part 1: General (ISO 10077-1:2006)

ISO 10077-1:2006 specifies methods for the calculation of the thermal transmittance of windows and pedestrian doors consisting of glazed and/or or opaque panels fitted in a frame, with and without shutters.
ISO 10077-1:2006 allows for the following:
different types of glazing (glass or plastic; single or multiple glazing; with or without low emissivity coatings, and with spaces filled with air or other gases);
opaque panels within the window or door;
various types of frames (wood, plastic, metallic with and without thermal barrier, metallic with pinpoint metallic connections or any combination of materials);
where appropriate, the additional thermal resistance introduced by different types of closed shutter, depending on their air permeability.
The thermal transmittance of roof windows and other projecting windows can be calculated using ISO 10077-1:2006, provided that the thermal transmittance of their frame sections is determined by measurement or by numerical calculation.
Default values for glazing, frames and shutters are given in ISO 10077-1:2006.
Thermal bridge effects at the rebate or joint between the window or door frame and the rest of the building envelope are excluded from the calculation. The calculation also does not include effects of solar radiation, heat transfer caused by air leakage, calculation of condensation, ventilation of air spaces in double and coupled windows and surrounding parts of an oriel window.
ISO 10077-1:2006 does not apply to curtain walls and other structural glazing and industrial, commercial and garage doors.

Wärmetechnisches Verhalten von Fenstern, Türen und Abschlüssen - Berechnung des Wärmedurchgangskoeffizienten - Teil 1: Allgemeines (ISO 10077-1:2006)

Dieser Teil von ISO 10077 legt Verfahren zur Ermittlung des Wärmedurchgangskoeffizienten von Fenstern und Türen fest, die aus einer Verglasung und/oder opaken Füllungen in einem Rahmen mit oder ohne Abschlüsse bestehen.
Dieser Teil von ISO 10077 berücksichtigt:
-   unterschiedliche Verglasungsarten (Glas oder Kunststoff, Einfachverglasung oder Mehrfachver-glasungen; mit oder ohne Beschichtungen mit geringem Emissionsgrad; mit Luft- oder anderen Gasfüllungen im Zwischenraum);
-   opake Füllungen im Fenster bzw. in der Tür;
-   unterschiedliche Rahmenarten (Holz, Kunststoff, Metall mit und ohne Wärmedämmung; Metallrahmen mit metallischen Verbindungen, wie Stifte usw., oder jede andere Kombination von Werkstoffen);
-   sofern anwendbar, den zusätzlichen Wärmedurchlasswiderstand, der durch verschiedene Arten von geschlossenen Abschlüssen in Abhängigkeit von ihrer Luftdurchlässigkeit bewirkt wird.
Der Wärmedurchgangskoeffizient von Dachfenstern und anderen vorstehenden Fenstern kann mit Hilfe dieses Teils von ISO 10077 berechnet werden, sofern der Wärmedurchgangskoeffizient ihrer Rahmenabschlüsse durch Messungen oder numerische Berechnung bestimmt wird.
In informativen Anhängen sind Standardwerte für Verglasungen, Rahmen und Abschlüsse angegeben. Die Wirkung von Wärmebrücken im Bereich der Leibung oder des Baukörperanschlusses und der übrigen Gebäudehülle sind von der Berechnung ausgenommen.
Die Berechnung berücksichtigt nicht:
-   Einflüsse aus der Sonneneinstrahlung;
-   Wärmeübertragung infolge Luftdurchlässigkeit;
-   das Tauverhalten;
-   belüftete Zwischenräume in Kastenfenstern und Verbundfenstern;
-   Umrahmung von Erkerfenstern.
Dieser Teil von ISO 10077 gilt nicht für
-   Vorhangfassaden und andere tragende Verglasungen;
-   Tore.

Performance thermique des fenêtres, portes et fermetures - Calcul du coefficient de transmission thermique - Partie 1: Généralités (ISO 10077-1:2006)

L'ISO 10077-1:2006 spécifie des méthodes de calcul du coefficient de transmission thermique des fenêtres et des portes pour piétons constituées de panneaux vitrés et/ou opaques montés dans un cadre, avec ou sans fermetures.
L'ISO 10077-1:2006 prend en compte:
les différents types de vitrage (en verre ou en plastique; simples ou multiples; avec ou sans revêtements peu émissifs; avec espaces intercalaires remplis d'air ou d'autres gaz);
les panneaux opaques à l'intérieur de la fenêtre ou de la porte;
les différents types d'encadrements (en bois; en plastique; en métal avec ou sans coupure thermique; en métal avec jonctions métalliques ponctuelles ou toute combinaison de matériaux);
le cas échéant, la résistance thermique supplémentaire introduite par différents types de fermetures extérieures, en fonction de leur perméabilité à l'air.
Le coefficient de transmission thermique des fenêtres de toit et des autres fenêtres à projection peut être calculé selon l'ISO 10077-1:2006, à condition que le coefficient de transmission thermique de leurs encadrements soit déterminé par mesure ou par calcul numérique.
Des valeurs par défaut pour les vitrages, encadrements et fermetures sont données dans les annexes informatives. Les effets de pont thermique à la contrefeuillure ou au joint entre l'encadrement de fenêtre ou de porte et le reste de l'enveloppe du bâtiment sont exclus du calcul.
Le calcul n'inclut pas:
les effets du rayonnement solaire;
les transferts de chaleur dus aux infiltrations d'air;
le calcul des condensations;
la ventilation des lames d'air dans les fenêtres doubles et à vantaux dédoublés;
les parties environnantes d'un oriel.
L'ISO 10077-1:2006 ne s'applique pas aux:
façades légères et aux autres vitrages structurels;
portes industrielles, commerciales et portes de garage.

Toplotne lastnosti oken, vrat in polken - Izračun toplotne prehodnosti - 1. del: Splošno (ISO 10077-1:2006)

Ta del ISO 10077 določa metode za izračun toplotne prehodnosti oken in zunanjih vhodnih vrat, sestavljenih iz zastekljenih in/ali neprosojnih plošč, nameščenih v okvir, s polkni ali brez. Ta del ISO 10077 dovoljuje – različne vrste zasteklitve (s steklom ali plastiko; enojno ali večkratno; s toplotno zaščitnimi nanosi ali brez in s prostorom, napolnjenim z zrakom ali drugimi plini); - neprosojne plošče v oknih ali vratih; - različne vrste okvirov (lesene, polimerne, kovinske s toplotnimi pregradami ali brez, kovinske z natančnimi kovinskimi priključki ali iz katere koli kombinacije materialov); - po potrebi dodatno toplotno odpornost, ki jo omogočajo raznovrstna zaprta polkna, odvisno od prepustnosti zraka. Toplotna prehodnost strešnih oken in drugih izbočenih oken se lahko izračuna v skladu s tem delom ISO 10077, pod pogojem, da se toplotna prehodnost prerezov okvirjev določi z merjenjem ali numeričnim izračunom. Privzete vrednosti za zasteklitev, okvire in polkna so podane v informativnih dodatkih. Izračun ne vključuje učinkov toplotnih mostov pri utoru ali spoju med okenskim ali vratnim okvirjem ter ostalim toplotnim ovojem stavbe. Izračun ne vključuje – učinkov sončnega sevanja, - prenosa toplota, ki ga povzroča uhajanje zraka, - izračuna kondenzacije, - prezračevanja zračnih prostorov v dvojnih in sklopljenih oknih, - sosednjih delov pomolnega okna. Ta del ISO 10077 ne velja za – zunanje stene in druge steklene fasade, - vrata v industrijske in javne prostore ter garažna vrata.

General Information

Status
Withdrawn
Publication Date
14-Sep-2006
Withdrawal Date
18-Jul-2017
Current Stage
9960 - Withdrawal effective - Withdrawal
Completion Date
19-Jul-2017

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SLOVENSKI STANDARD
01-februar-2007
7RSORWQHODVWQRVWLRNHQYUDWLQSRONHQ,]UDþXQWRSORWQHSUHKRGQRVWLGHO
6SORãQR ,62
Thermal performance of windows, doors and shutters - Calculation of thermal
transmittance - Part 1: General (ISO 10077-1:2006)
Wärmetechnisches Verhalten von Fenstern, Türen und Abschlüssen - Berechnung des
Wärmedurchgangskoeffizienten - Teil 1: Allgemeines (ISO 10077-1:2006)
Performance thermique des fenetres, portes et fermetures - Calcul du coefficient de
transmission thermique - Partie 1: Généralités (ISO 10077-1:2006)
Ta slovenski standard je istoveten z: EN ISO 10077-1:2006
ICS:
91.060.50 Vrata in okna Doors and windows
91.120.10 Toplotna izolacija stavb Thermal insulation
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 10077-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2006
ICS 91.120.10; 91.060.50 Supersedes EN ISO 10077-1:2000
English Version
Thermal performance of windows, doors and shutters -
Calculation of thermal transmittance - Part 1: General (ISO
10077-1:2006)
Performance thermique des fenêtres, portes et fermetures - Wärmetechnisches Verhalten von Fenstern, Türen und
Calcul du coefficient de transmission thermique - Partie 1: Abschlüssen - Berechnung des
Généralités (ISO 10077-1:2006) Wärmedurchgangskoeffizienten - Teil 1: Allgemeines (ISO
10077-1:2006)
This European Standard was approved by CEN on 2 August 2006.
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 Central Secretariat 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 Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, 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
© 2006 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 10077-1:2006: E
worldwide for CEN national Members.

Foreword
This document (EN ISO 10077-1:2006) has been prepared by Technical Committee ISO/TC 163
"Thermal insulation" 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 March 2007, and conflicting national
standards shall be withdrawn at the latest by March 2007.

This document supersedes EN ISO 10077-1:2000.

According to the CEN/CENELEC Internal Regulations, the national standards organizations of
the following countries are bound to implement this European Standard: Austria, Belgium,
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.

Endorsement notice
The text of ISO 10077-1:2006 has been approved by CEN as EN ISO 10077-1:2006 without any
modifications.
INTERNATIONAL ISO
STANDARD 10077-1
Second edition
2006-09-15
Thermal performance of windows, doors
and shutters — Calculation of thermal
transmittance —
Part 1:
General
Performance thermique des fenêtres, portes et fermetures — Calcul du
coefficient de transmission thermique —
Partie 1: Généralités
Reference number
ISO 10077-1:2006(E)
©
ISO 2006
ISO 10077-1:2006(E)
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ii © ISO 2006 – All rights reserved

ISO 10077-1:2006(E)
Contents Page
Foreword. iv
Introduction . v
1 Scope . 1
2 Normative references . 2
3 Terms, definitions, symbols and units . 2
3.1 Terms and definitions. 2
3.2 Symbols and units. 3
3.3 Subscripts . 3
4 Geometrical characteristics. 3
4.1 Glazed area, opaque panel area . 3
4.2 Total visible perimeter of the glazing . 3
4.3 Frame areas. 4
4.4 Window area. 4
5 Calculation of thermal transmittance . 6
5.1 Windows . 6
5.2 Glazing . 9
5.3 Windows with closed shutters . 10
5.4 Doors. 11
6 Input data. 13
7 Report . 13
7.1 Contents of report. 13
7.2 Drawing of sections. 13
7.3 Drawing of the whole window or door. 14
7.4 Values used in the calculation . 14
7.5 Presentation of results. 14
Annex A (normative) Internal and external surface thermal resistances. 15
Annex B (normative) Thermal conductivity of glass . 16
Annex C (informative) Thermal resistance of air spaces between glazing and thermal
transmittance of coupled, double or triple glazing . 17
Annex D (informative) Thermal transmittance of frames . 19
Annex E (normative) Linear thermal transmittance of frame/glazing junction. 25
Annex F (informative) Thermal transmittance of windows . 27
Annex G (informative) Additional thermal resistance for windows with closed shutters . 32
Annex H (informative) Permeability of shutters . 33
Bibliography . 35

ISO 10077-1:2006(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of 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. International 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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
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.
ISO 10077-1 was prepared by Technical Committee ISO/TC 163, Thermal performance and energy use in the
built environment, Subcommittee SC 2, Calculation methods.
This second edition cancels and replaces the first edition (ISO 10077-1:2000), the following clauses and
subclauses of which have been technically revised.
Clause Changes
Introduction Added new paragraph explaining the various parts of the overall thermal transmittance
1 Amended 4th paragraph to permit calculation of U-value of roof windows
2 References to ISO rather than EN ISO where applicable
4.3 Added “including sashes if present” to the definition of areas
4.4 Clarification that sealing gaskets are ignored in the determination of areas. Dimensions
to be measured to nearest mm.
5.1.1 Third from last paragraph inserted concerning roof windows
5.3 Data on shutters moved to Annex G
6 Added paragraph to say that declared values are to be obtained for horizontal heat flow
(as in ISO 10292 and EN 673)
7.1 Second dash, drawing to give details also for metal frames
Table A.1 Added surface resistance values for horizontal or inclined window
Annex E Complete revision of Annex E. It has been changed to normative, because it provides
default values that are to be used in the absence of detailed values.
Annex F Complete revision of Annex F, using the new values in Annex E
ISO 10077 consists of the following parts, under the general title Thermal performance of windows, doors and
shutters — Calculation of thermal transmittance:
⎯ Part 1: General
⎯ Part 2: Numerical method for frames
iv © ISO 2006 – All rights reserved

ISO 10077-1:2006(E)
Introduction
The calculation method described in this part of ISO 10077 is used to evaluate the thermal transmittance of
windows and doors, or as part of the determination of the energy use of a building.
An alternative to calculation is testing of the complete window or door according to ISO 12567-1 or, for roof
windows, according to ISO 12567-2.
The calculation is based on four component parts of the overall thermal transmittance:
⎯ for elements containing glazing, the thermal transmittance of the glazing, calculated using EN 673 or
measured according to EN 6
...

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