Effect of Insulation Ground on Anti-condensation in Rural Residence

Condensation on ground often occurring in rural residence in hot and humidity area is a threat against its indoor thermal comfort. This paper studies the moisture-proof measures on ground in rural residence in Chongqing area. A typical two-story rural residence was modelled by using DesignBuilder software. The data of annual ground temperature and humidity which were used to calculate the duration and strength of condensation in cases of using ordinary residential cement ground and thermal insulation ground was simulated. The results show that: for Chongqing rural residence, the temperature of the first floor is generally lower 1-2 degrees than that of the second floor; The ground condensation of rural residence in Chongqing area are mainly concentrated from the end of March to early July; the effect of thermal insulation ground to avoid condensation is good to solve the problems occurred in rural residence, when the insulation layer thickness is 50 mm and the thermal resistance value is 0.49m2 · K / W, it can basically eliminate the ground condensation.