Window Measurement

Measurements in Greece of installed windows and comparison between the given air permeability classification and the classification applied to the building envelope

Submitted by on Tue, 01/14/2025 - 10:25

According to the European regulation EN 12207:2017-03, the air permeability of windows and doors is categorized in four different classes and when they are installed on the building envelope, the declared air permeability class should remain unchanged.  
The approach is to perform on-site measurements and to confront 40 different cases of windows and doors installed on new and retrofit projects in Athens, Greece.  
The purpose is to discover and highlight the most common errors to the correct installation and suggest easy tactics to prevent them.