NF EN ISO 10077-2
Thermal performance of windows, doors and shutters - Calculation of thermal transmittance - Part 2 : numerical method for frames
ISO 10077-2:2003 specifies a method and gives reference input data for the calculation of the thermal transmittance of frame profiles and of the linear thermal transmittance of their junction with glazings or opaque panels.The method can also be used to evaluate the thermal resistance of shutter profiles and the thermal characteristics of roller shutter boxes.ISO 10077-2:2003 also gives criteria for the validation of numerical methods used for the calculation. ISO 10077-2:2003 does not include effects of solar radiation, heat transfer caused by air leakage or three-dimensional heat transfer such as pin point metallic connections. Thermal bridge effects between the frame and the building structure are not included.
ISO 10077-2:2003 specifies a method and gives reference input data for the calculation of the thermal transmittance of frame profiles and of the linear thermal transmittance of their junction with glazings or opaque panels.
The method can also be used to evaluate the thermal resistance of shutter profiles and the thermal characteristics of roller shutter boxes.
ISO 10077-2:2003 also gives criteria for the validation of numerical methods used for the calculation. ISO 10077-2:2003 does not include effects of solar radiation, heat transfer caused by air leakage or three-dimensional heat transfer such as pin point metallic connections. Thermal bridge effects between the frame and the building structure are not included.
ISO 10077-2:2011 specifies a method and gives reference input data for the calculation of the thermal transmittance of frame profiles and of the linear thermal transmittance of their junction with glazing or opaque panels. The method can also be used to evaluate the thermal resistance of shutter profiles and the thermal characteristics of roller shutter boxes and similar components (e.g. blinds). ISO 10077-2:2011 also gives criteria for the validation of numerical methods used for the calculation. ISO 10077-2:2011 does not include effects of solar radiation, heat transfer caused by air leakage or three‑dimensional heat transfer such as pin point metallic connections. Thermal bridge effects between the frame and the building structure are not included.
- Avant-propos3
- Introduction4
-
1 Domaine d'application4
-
2 Références normatives4
-
3 Termes, définitions, symboles et unités5
-
4 Méthode de calcul5
-
4.1 Principe général5
-
4.2 Vérification du programme de calcul utilisé6
-
4.3 Détermination du coefficient de transmission thermique6
-
5 Traitement des sections pleines et des conditions aux limites6
-
5.1 Matériaux pleins6
-
5.2 Conditions aux limites6
-
6 Traitement des cavités6
-
6.1 Généralités6
-
6.2 Cavités dans les vitrages6
-
6.3 Vides d'air non ventilés dans les profilés de menuiserie7
-
6.4 Cavités et interstices ventilés10
-
7 Rapport11
-
7.1 Généralités11
-
7.2 Données géométriques11
-
7.3 Données thermiques11
-
7.4 Résultats11
- Annexe A (informative) Conductivité thermique (lambda) de matériaux courants12
- Annexe B (normative) Résistances superficielles pour flux thermique horizontal14
- Annexe C (normative) Détermination du coefficient de transmission thermique15
-
C.1Coefficient de transmission thermique d'une section courante du profilé de menuiserie 15
-
C.2Coefficient linéique de transmission thermique (psi) de la jonction avec le vitrage ou la paroi opaque 16
- Annexe D (normative) Exemples pour la vérification des programmes de calcul utilisés17
-
D.1Généralités 17
-
D.2Figures 17
-
D.3Résultats 27
- Annexe ZA (normative) Références normatives aux publications internationales avec leurs publications européennes correspondantes28
- Bibliographie29
The Requirements department helps you quickly locate within the normative text:
- mandatory clauses to satisfy,
- non-essential but useful clauses to know, such as permissions and recommendations.
The identification of these types of clauses is based on the document “ISO / IEC Directives, Part 2 - Principles and rules of structure and drafting of ISO documents ”as well as on a constantly enriched list of verbal forms.
With Requirements, quickly access the main part of the normative text!

COBAZ is the simple and effective solution to meet the normative needs related to your activity, in France and abroad.
Available by subscription, CObaz is THE modular solution to compose according to your needs today and tomorrow. Quickly discover CObaz!
Request your free, no-obligation live demo
I discover COBAZ