Which statement about anodized aluminum is true?

• A. Anodized aluminum cannot be colored.
• B. Anodized aluminum is heavier than non-anodized.
• C. Anodized sheets of aluminum are often used for roofing or flashings to provide color.
• D. Anodized aluminum sheets are never used in construction.

Answer: (C)

Anodizing creates a protective oxide layer on aluminum that can be dyed or color-tinted, giving a durable finish without changing the base material. The oxide layer is thin, so the weight impact is minimal, and the aluminum remains lightweight and corrosion-resistant. Because you can achieve a range of colors while maintaining durability, anodized sheets are a common choice in construction for roofing and flashings where color is desired as well as protection from weather.

That means the statement about providing color for roofing or flashings is the true one. Anodized aluminum can indeed be colored; it isn’t heavier due to the coating, and it is widely used in construction, not avoided.