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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and units
5 Principle
   5.1 Introduction
   5.2 Heating energy performance
   5.3 Cooling energy performance
6 Methodology and basic equations
   6.1 General
   6.2 The window energy performance for heating
   6.3 The window energy performance for cooling
   6.4 The heat balance elements
       6.4.1 Heat transfer
       6.4.2 Solar gain
   6.5 Assessment of the solar control potential
       of the rated window
       6.5.1 Principle
       6.5.2 Procedure
7 Climate data
   7.1 Introduction
   7.2 External air temperature
   7.3 Solar radiation
   7.4 Wind speed
8 Basic thermal and solar-optical fenestration properties
   8.1 Introduction
   8.2 Thermal transmittance, U-value
   8.3 Total solar energy transmittance or solar
       factor, g-value
   8.4 Daylight potential
   8.5 Air infiltration (air permeability) and ventilation
       8.5.1 Air infiltration
       8.5.2 Natural ventilation through deliberate
             opening of the window
9 Reference building
   9.1 Introduction
   9.2 Overview of data
10 Reporting
Annex A (informative) - Explanation of gain/loss utilization
        factor method used in ISO 13790 for the window energy
        balance equation
   A.1 Building energy balance
   A.2 Accumulated temperature difference versus degree
       day method
   A.3 Monthly method: correction factor for season length
Annex B (informative) - Assessment of the solar control
        potential of the rated window
   B.1 Introduction
       B.1.1 Principle
       B.1.2 Procedure
   B.2 Reference solar control provision
   B.3 Window properties with the fictitious reference
       solar control provision
   B.4 Recommended approach
   B.5 Examples of assessment of solar control potential
Annex C (informative) - Example of reference buildings
Annex D (informative) - Example of the calculation of EP[C,w]
        and EP[H,w] - Using a detailed hourly method
Annex E (informative) - Example of the calculation of EP[C,w]
        and EP[H,w] - Using a monthly method
Bibliography