prEN ISO 15927-4 rev

Hygrothermal performance of buildings — Calculation and presentation of climatic data — Part 4: Hourly data for assessing the annual energy use for heating and cooling prEN ISO 15927-4 rev

General information

10.99   New project approved   Feb 25, 2026

CEN

CEN/TC 89 Thermal performance of buildings and building components

European Norm

Scope

ISO 15927-4:2005 specifies a method for constructing a reference year of hourly values of appropriate meteorological data suitable for assessing the average annual energy for heating and cooling. Other reference years representing average conditions can be constructed for special purposes. The procedures in this part of ISO 15927-4:2005 are not suitable for constructing extreme or semi-extreme years for simulation of, for example, moisture damage or energy demand in cold years.
Meteorological instrumentation and methods of observation are not covered.

Life cycle

PREVIOUSLY

PUBLISHED
EN ISO 15927-4:2005

NOW

IN_DEVELOPMENT
prEN ISO 15927-4 rev
10.99 New project approved
Feb 25, 2026




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