moisture content of sands, soils and building materials Materials such as stones, sand and ceramics are considered 'dry' and have much lower equilibrium moisture content than organic material like wood and leather. typically a fraction of a percent by weight when in equilibrium of air of Relative humidity 10% to 90%. This affects the rate that buildings need to dry out after construction, typical cements starting with 40-60% water content. This is also important for construction materials such as render reinforced with organic materials, as modest changes in content of different types of straw and wood shavings have a significant influence on the overall moisture content References Bibliography External links Timber seasoning Wood