Impact of Air-gap Design to Hygro-thermal Properties and Mould Growth Risk Between Concrete Foundation and CLT Frame

In this case study, the moisture content and air-flow in the junction and open space in structural design details between the first floor (of concrete) housing joint warehouse and technical spaces and the residential upper floors made of CLT modules is analysed. Conditions leading to probable moisture-derived mould issues and design parameters leading to sufficient ventilation according to Mould Index modelling are presented.