Abstract: Volatile organic compound（VOC)emission from wet building materials is a complex physical process，which includes drying and mass transfer.Based on saturated vapor pressure on the surface of wet building materials，this paper presents a newly developed mass transfer model for estimating the emission of VOC from fresh wet building materials.A small environment chamber was used to study the influence of temperature and relative humidity on VOC concentration in the chamber.
Compared with VB model and the model developed by Yang et al.，the present model is more accurate in predicting emission of VOC from wet building materials.Temperature and relative humidity are important factors influencing VOC emissions from wet building materials.