This project, which emerged from the ASHRAE 1759-RP project, focuses on a multi-parametric analysis of the building envelope with air gaps behind claddings (passive or active) through consideration of outdoor dynamic weather conditions, airspace configuration and dynamic thermal behaviour of the building envelope material.

The heat flow indoors and the air gap heat recovery potential is measured on a traditional cladding at the Controlled Environments for Living Lab Studies (CELLS) facility to validate a numerical approach to predict airflow behaviour behind air gaps.