ISO/WD 22511-1
Design process of ventilative cooling systems — Part 1: Non-residential buildings
Reference number
ISO/WD 22511-1
Edition 1
Working draft
ISO/WD 22511-1
A working group has prepared a draft.


This document establishes a design process for natural, mechanical, and hybrid (combination) ventilative cooling systems to reduce overheating and cooling demand in non-residential buildings. The aim is to estimate the potential of ventilative cooling before using other cooling means such as supplementary and/or mechanical cooling in order to fulfil the thermal comfort requirements in an energy efficient way.


  • The natural ventilation of which airflow path contains plural spaces in series that require thermal comfort.
  • The calculation methods for ventilation air flow rates, room temperature and cooling demand, but references to these methods may be given.

General information

  •  : Under development
    : Close of comment period [20.60]
  •  : 1
  • ISO/TC 205
  • RSS updates

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