Cedar shakes or shingles that have a greenish tint are green because of what?

Cedar shakes or shingles that have a greenish tint are green because of what?

• A. The shingles have been pressure treated
• B. They were painted green
• C. They are naturally green due to the cedar species
• D. They are stained with a protective finish

Answer: (A)

The greenish tint on cedar shakes or shingles comes from the wood being pressure treated with a copper-based preservative. The treatment impregnates the wood to resist rot and insects, and the copper compounds give the wood a distinct green hue that remains through the life of the material. Cedar itself isn’t naturally green, so the color isn’t due to the species. Painting or staining could produce green, but the characteristic green tint described here signals the preservative treatment, not a finish.

The greenish tint on cedar shakes or shingles comes from the wood being pressure treated with a copper-based preservative. The treatment impregnates the wood to resist rot and insects, and the copper compounds give the wood a distinct green hue that remains through the life of the material. Cedar itself isn’t naturally green, so the color isn’t due to the species. Painting or staining could produce green, but the characteristic green tint described here signals the preservative treatment, not a finish.