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seasoning - Coggle Diagram
seasoning
The seasoning time varies depending on the thickness of the wood boards and the time of year. Usually three to four months for 25mm softwoods. The time is doubled, for wood twice as thick. Hardwoods of 25mm thickness require about six months and up to at least a year for 50mm boards.
With air-dried wood there are no internal tensions baked into the wood. Kiln dried wood can be more fragile and break off easily.
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Though slower than kiln seasoning, air seasoning is one of the best options for timber
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the boards are stacked and divided by narrow pieces of wood called stickers so that the air can circulate freely about each board. The stack is slanted to facilitate drainage of rain.
air-seasoning (air-dried timber, air-drying)
The process of removing moisture from timber before it is used and put into service by drying in air.
Modern dry kilns allow tight control of air flow, temperature and humidity so that all the timber dries uniformly and to the precise moisture content required. Kiln drying often means a more uniform product and the problems often associated with poorly air-dried timber are avoided.
kiln seasoning (kiln drying)
A drying process predominantly utilized for reducing the moisture content in timber. The process is carried out in a closed chamber, providing maximum control of air circulation, humidity, and temperature.
Kiln seasoning gives the option to choose a certain temperature, humidity, and time for different kinds of wood, instead of a one size fits all option. This type of seasoning is a lot faster than air drying but can cost more and has more implications for the environment.
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Kiln seasoning is the most common form of timber seasoning as it's a quick way of effectively drying wood. The timber is stacked on top of a trolley, which is then rolled into a kiln filled with steam jets and heating coils that absorb moisture from the timber.
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Drying or “seasoning” reduces the moisture content of the wood. Wood should be seasoned before it is burned and the moisture content reduced to at least 25%. The lower the moisture content, the better the wood will burn.
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