Whether Wood Weathers
Subtitle:
Solar degradation of lignin at wood’s surface is the single most important factor affecting the weathering of wood and subsequent paint adhesion
Images:
The weathering of wood is very different from decay; weathering is breakdown at the surface only. While there are a number of forces that contribute to weathering of wood—moisture, temperature, abrasion by wind-borne particles, air pollution—it’s the narrow band of high-energy ultraviolet light in sunlight that is the dominant force (see Image #1).
What bare wood looks like when cut or milled
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