Theme 1 - Energy optimization of outer window and door frames.

The main objectives are 1) the collection, processing and evaluation of leakage data for opening doors and windows, obtained from certifications or tests, 2) evaluation of the influence of building technologies and component materials on leakage, 3) experimental evaluation of the reasons for the choice of wall/frame combination and of the relative components and 4) experimental evaluation of the correlation between air leakage and sound insulation in order to define new methods of acoustic measurement of air leakage for components after installation.