Why do Austin fences and decks turn gray or green?
Several things work on outdoor wood here at once:
- Sun and heat. Strong Texas sunlight breaks down the surface fibers of wood and fades stain and color. Cedar naturally weathers to silver-gray, which is normal.
- Mildew and algae. Shaded fences, fence bottoms and decks under trees stay damp and turn green or black.
- Sprinkler water. Irrigation soaks the lower pickets, leaves mineral spots and keeps the wood wet.
- Tannin bleed. Cedar can leave dark streaks when it gets wet.
- Dirt and pollen. Limestone dust, oak pollen and leaves settle on the wood and stick to it.
Cleaning removes mildew, dirt and loose gray fibers, and it can brighten the wood a lot. It will not make old, sun-worn wood look brand new, and we will tell you what to expect.
