Now We are more lively at a time whether Synthetic Materials Prevail Over Natural. However, Many Still Try to Use Natural Wood in the Construction of Their Own Home Or Cottage. Such Material is Much More Useful than Synthetic, Breathes, and the Appearantest of Another. But The Tree Itself, IF Do Not Process Its, Is Such a Material to Absorbs Water. Well, a Wet Environment is an Ideal World for The Propagation of Bacteria and Fungi.