Wood Weathering, Prevention and C ontrol Using Coatings

The use of wood products in outdoors leads to weathering phenomen by ultraviolet radiation and water. It has negetive effects on the functional properties of wood such as aesthetics, physical and mechanical properties. One of the effective stertegy is producing and applying suitable coatings depending on the used enviroment divided into different types. Recently, modification wood by chemichal, thermal or nano materilas is also considered to reduce weathering phenomen in wood. In this paper, we introduce the weathering process of wood and methods to control this phenomenon.