ABSTRACT
Variation in latitude and the fact that land masses experience more rapid and more extreme changes in temperature than the sea, cause air temperature gradients which lead to the atmospheric density and pressure differences which result in global air movement or wind. Important physical parameters in the determination of climate are air temperature, precipitation, humidity, wind speed and solar radiation. Many building materials absorb moisture, either from precipitation or a high humidity environment. Moisture migration through masonry material increases the thermal conductivity and may lead to dampness on the inner surface and a worsening of any condensation problems. The extremes of external temperature and solar radiation imposed upon a structure may be moderated by adequate thermal resistance, thermal capacity and ventilation so that a comfortable internal environment may be maintained without excessive energy usage. Moderation of the microclimate provides a more comfortable environment and reduces the exposure of the structure to the elements.
