WOOD ECOLOGICAL MATERIAL, RENEWABLE AND SUSTAINABLE
Wood is an ecological, renewable and sustainable material
Wood is a renewable raw material, constantly growing, unlike mineral raw materials that can only be depleted.
Wood is an easily accessible and transformable resource.
Wood is a durable material and is widely used in Scandinavia, Germany, Canada, the United States and Eastern Europe. In the Eastern countries, wooden buildings have existed for 1000 years and in France wooden construction has existed since the 11th century, and they are perfectly preserved.
STORAGE OF CARBON BY THE FOREST
If forests are recognized as “carbon sinks”, it is equally important to understand that a tree has a lifespan limited to a few decades or centuries depending on the species, and that consequently At the end of its life, it decomposes and thus restores the carbon dioxide it has absorbed during its growth. This is why, in order to avoid a zero CO2 balance, it should be harvested at maturity and stored for the long term.
WOOD, A FIRE RESISTANT MATERIAL
Contrary to popular belief, wood has advantages in case of fire:
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Does not deform
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Does not release toxic gases
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Do not burn up quickly
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Allows evacuation of people and property
The thermal expansion of wood is 3 times lower than that of steel and concrete.
Its thermal conductivity is low because it is more insulating than steel, concrete, brick or aluminum, which makes it possible to maintain the technical mechanical characteristics under the action of fire.
The carbon layer (charcoal) on the surface plays a role of thermal insulation slowing the carbonization, to protect the inner layers of the wood and thus slow the advance of fire.
WOOD, A NATURAL AND PERFORMING INSULATION
The wood is:
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6 times more insulating than brick
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12 times more insulating than concrete
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350 times more insulating than steel
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1500 times more insulating than aluminum
PHOTOSYNTHESIS OF WOOD
A tonne of photosynthetically produced wood absorbs 1.6 tons of CO2 (carbon dioxide) and emits 1.1 tons of O2 (oxygen) into the atmosphere.
Wood growing through photosynthesis captures CO2 and releases O2 into the atmosphere.
