Effect of moisture transfer across building components on room temperature

Analytical closed-form solutions for the heat and moisture distribution given by the Luikov system of partial differential equations have been obtained by using a periodic solution approach. The energy balance of a model room has been considered with different thermophysical properties produced by a change in the moisture content, of the spruce walls, along with the effect of vapor diffusion. The results show that the humidity present in ambient air and room air affects room temperature and in the hygroscopic region it can alter the room temperature by 2–3°C depending upon the amount and direction of temperature and moisture gradients, which is in conformity with the earlier results of Hall.