Are there any problems with condensation with TermoDeck, especially in hot climates, as the supply air temperature could be as low as 13-14 degree C when entering the hollow core slab?
There is no condensation on the slab surfaces since the temperature of the surfaces of the slab only differs from the room temperature by a few degrees and should never be less than 19-20oC. There is no big difference from a normal air-cooled HVAC system. It is more important to insulate the steel ductwork properly as the surface temperature of the duct will be around 16-17oC (if room temp is around 22-23oC). In some cases in humid climates, a dehumidifier is used separately. However, in a hot and humid climate, condensation can occur in any building if the doors and windows are kept open and the outdoor air is entering the building. TermoDeck buildings are operating in hot and humid climates such as Dubai and Jeddah (Saudi Arabia) since many years without any condensation problems.
