Is all wood susceptible to weather damage, UV degradation, and fungal attack?
Types of wood, part of tree wood is from, and age of tree, all affect the weathering of wood. A rule of thumb is that the older the tree and the closer the wood to the center of the tree, the more weather resistant. Older wood and heartwood are more difficult to teat with a wood finish because their grain patterns don’t allow penetration. When dealing with older trees, heartwood, or certain types of cedar, the surface of the wood should be “roughed up” to help penetration of the stain.