EN 13465:2004

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviations
5 Classification
  5.1 Building types
  5.2 Shielding class
6 Input data
  6.1 Climatic data
  6.2 Building and dwelling related data
  6.3 System data
7 Whole house air flow rates
  7.1 General
  7.2 Input parameters and building representation
  7.3 Total air flow rate per dwelling or apartment
  7.4 Outdoor air flow rate
  7.5 System flow
  7.6 Flow balance equation
  7.7 Individual flows
  7.8 Airing flow
  7.9 Combustion induced flow
  7.10 Application to APT building types
8 Determination of average flow values
9 Results
  9.1 Presentation of results
  9.2 Resolution
Annex A (informative) Selection of input data values
      A.1 Leakage characteristics for different building
          construction types
      A.2 Conversion formulas for overall leakage values
      A.3 Conversion formula for opening characteristics
      A.4 Data on wind pressure coefficients
      A.5 Climatic data
      A.6 Combustion flow factor
Annex B (informative) Calculation examples
      B.1 General
      B.2 Multifamily house (including comparison with
          measurements)
Bibliography

This Standard specifies methods to calculate basic whole house air flow rates for single family houses and individual apartments up to the size of approximately 1 000 m3, to be used for applications such as energy loss calculations, heat load calculations and indoor air quality evaluations. The same basic methods apply for these different applications, the input parameter values being selected according to the requirements of the specific application.