Which of the following materials is NOT typically used for roof flashing?

Roof flashing is a critical component in roofing systems, primarily designed to direct water away from key areas of the roof, such as chimneys, vents, and valleys. The materials used for flashing must be durable, water-resistant, and able to withstand the elements.

Copper, zinc, and aluminum are all commonly used materials for roof flashing. Copper is highly durable and resistant to corrosion and can last for decades, making it a popular choice for high-quality installations. Zinc is also corrosion-resistant and has antimicrobial properties, contributing to its longevity and efficacy in preventing leaks. Aluminum is lightweight, cost-effective, and resistant to rust, which makes it a widely used option in various roofing applications.

Wood is not suitable for roof flashing due to its porous nature, which makes it susceptible to water damage and decay over time. It does not provide the necessary protection that metal flashing materials offer in preventing water infiltration. Additionally, wood can warp and swell when exposed to moisture, further compromising the integrity of a roofing system. Therefore, it is not typically used for roof flashing in carpentry and roofing applications.