ISO 10077-2:2017
Thermal performance of windows, doors and shutters — Calculation of thermal transmittance — Part 2: Numerical method for frames
ISO 10077-2:2017 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 10077-2:2017 also gives criteria for the validation of numerical methods used for the calculation.
ISO 10077-2:2017 does not include effects of solar radiation, heat transfer caused by air leakage or three-dimensional heat transfer such as pinpoint metallic connections. Thermal bridge effects between the frame and the building structure are not included.
NOTE Table 1 in the Introduction shows the relative position of ISO 10077-2:2017 within the set of EPB standards in the context of the modular structure as set out in ISO 52000-1.
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and subscripts
4.1 Symbols
4.2 Subscripts
5 Calculation method
5.1 Output of the method
5.2 General principle
5.3 Validation of the calculation programs
6 Calculation of thermal transmittance
6.1 Output data
6.2 Calculation time intervals
6.3 Input data
6.3.1 Geometrical characteristics
6.3.2 Thermal conductivity values
6.3.3 Emissivity of surfaces
6.3.4 General boundaries
6.3.5 Boundaries for roller shutter boxes
6.4 Calculation procedures
6.4.1 Determination of thermal transmittance
6.4.2 Treatment of cavities using the radiosity method
6.4.3 Treatment of cavities using the single equivalent thermal conductivity method
7 Report
7.1 Contents of report
7.2 Geometrical data
7.3 Thermal data
7.3.1 Thermal conductivity
7.3.2 Emissivity
7.3.3 Boundary conditions
7.4 Presentation of results
Annex A (normative) Input and method selection data sheet — Template
Annex B (informative) Input and method selection data sheet — Default choices
Annex C (normative) Regional references in line with ISO Global Relevance Policy
Annex D (normative) Thermal conductivity and other characteristics of selected materials
Annex E (normative) Surface resistances
Annex F (normative) Determination of the thermal transmittance
Annex G (normative) General examples for the validation of calculation programs using the radiosity method for the treatment of cavities
Annex H (normative) Examples of window frames for the validation of calculation programs using the radiosity method for the treatment of cavities
Annex I (normative) Examples of window frames for the validation of calculation programs using the single equivalent thermal conductivity method for the treatment of cavities
Annex J (normative) Wood species listed in Annex D
Bibliography
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and subscripts
4.1 Symbols
4.2 Subscripts
5 Calculation method
5.1 Output of the method
5.2 General principle
5.3 Validation of the calculation programs
6 Calculation of thermal transmittance
6.1 Output data
6.2 Calculation time intervals
6.3 Input data
6.3.1 Geometrical characteristics
6.3.2 Thermal conductivity values
6.3.3 Emissivity of surfaces
6.3.4 General boundaries
6.3.5 Boundaries for roller shutter boxes
6.4 Calculation procedures
6.4.1 Determination of thermal transmittance
6.4.2 Treatment of cavities using the radiosity method
6.4.3 Treatment of cavities using the single equivalent thermal conductivity method
7 Report
7.1 Contents of report
7.2 Geometrical data
7.3 Thermal data
7.3.1 Thermal conductivity
7.3.2 Emissivity
7.3.3 Boundary conditions
7.4 Presentation of results
Annex A (normative) Input and method selection data sheet — Template
Annex B (informative) Input and method selection data sheet — Default choices
Annex C (normative) Regional references in line with ISO Global Relevance Policy
Annex D (normative) Thermal conductivity and other characteristics of selected materials
Annex E (normative) Surface resistances
Annex F (normative) Determination of the thermal transmittance
Annex G (normative) General examples for the validation of calculation programs using the radiosity method for the treatment of cavities
Annex H (normative) Examples of window frames for the validation of calculation programs using the radiosity method for the treatment of cavities
Annex I (normative) Examples of window frames for the validation of calculation programs using the single equivalent thermal conductivity method for the treatment of cavities
Annex J (normative) Wood species listed in Annex D
Bibliography