ABSTRACT
Study of this chapter will enable the reader to:
identify the moisture content of humid air by its vapour pressure;
understand dew-point temperature;
identify the sources of moisture within a building;
understand the flow and storage characteristics of moisture flows found in habitable building;
explain the causes of condensation;
discuss the damage which can be caused by condensation;
calculate vapour diffusion resistance;
calculate vapour flow;
calculate air vapour pressure;
calculate air dew-point temperature;
understand atmospheric pressure terms;
use the e x calculator function;
use the loge calculator function;
convert from e x to loge forms;
draw thermal temperature gradients;
draw dew-point temperature gradients;
identify condensation zones;
discuss surface and interstitial condensation;
understand where to install thermal insulation and vapour barriers in relation to condensation risk and thermal and structural integrity requirements.
