Wood

//**Wood: __oral presentation__ **//

__Formation:__ wood, is yielded by trees

__Physical propieties __ : Are, moinsture content, density, permeability and thermal and electrical propieties.

__Mechanical propieties: __ Elastic and strength. 

__Clasification:__ Clasificcation is based on the correlation betwen densities of the wood.

- The softwood - The hardwood

__Uses:__

- Contruction: long time ago, the wood is used as one of the main materials for construcyion shelters, homes and boats. Can be used as structural or a esthetic. The wood is always present in all buildings. In most building is used to form the shuttering of the columns. 

- Engineer wood: <span style="color: rgb(251, 64, 9);"> the wood is used ingeniously, in conditions that other materials such as cpncreter or steel, can not resist or are not suitable for example in edges of pools or ice rinks.

<span style="color: rgb(107, 46, 6);">- Furniture utensils.

- Art. Examples: <span style="color: rgb(251, 64, 9);"> Roof

floor



interior house



structures



musical instruments <span style="color: rgb(107, 46, 6);">



__Advantages:__ <span style="color: rgb(251, 64, 9);">light weight and rigid, Can be used with others materials, Good thermal and accoustic insulation, economic.

<span style="color: rgb(107, 46, 6);">__<span style="color: rgb(107, 46, 6);">Disadvantages: __<span style="color: rgb(107, 46, 6);"> <span style="color: rgb(251, 64, 9);">Much maintenance. not water resistant, not fire resistant, susceptible to termites.

<span style="color: rgb(107, 46, 6); font-size: 140%;">
 * Performarce of wood** <span style="color: rgb(251, 64, 9);">

canada is the world leader in production of wood building products and wood construction sistems. wooden structure has proven to be strong, durable and efficient over hundreds of years. Structures of wood are in great demand arround the world.

The structure of wood are very faster and more economical; and too many ways safer than concrete structure. Studies showed that the majority of people die in a fire by the smoke, so the wood is much better and safer in this regard because it absorbs the smoke. They also developed systems to make structures safer wood fire, and excelent acoustic that does not allow the propagation of sound waves through the walls. Wooden structures are the first choices for singles or families with children due to their ability to maintain the desired temeparaturas either the cold or heat.