80 Construction Wood Moisture Content Update

Before using any wood for the construction of buildings or furniture it needs to be kiln dried to reduce its moisture content mc.
Construction wood moisture content. It is usually expressed as the percentage by mass of the water present relative to the material s dry weight. The acceptable moisture content for wood. The ideal moisture content mc depends upon the use of the wood and the annual average relative humidity rh at the place where the kiln dried wood is to be used. By comparing the weight of dried out wood and original wood s weight you can easily calculate the moisture content percentage.
The term moisture content or water content refers to the amount of water that is contained in the pores voids of a material. Hygroscopicity isn t necessarily a bad thing this allows wood to function as a natural humidity controller in our homes. In other words its moisture content will stabilize at a point called the equilibrium moisture content emc. Basically wood moisture content is the weight of water in a piece of wood expressed as a percentage of oven dry weight of wood.
Moisture content designing buildings wiki share your construction industry knowledge. Moisture content is measured in percentages. For example fresh cut trees can have a wood moisture content over 200 while completely dried wood will have a wood moisture content of 0 and wood in buildings usually has a wood moisture content of 5 to 15. Wood used indoors will eventually stabilize at 8 14 moisture content.
Understanding moisture content can be useful for a number of. In fact according to m.