What material is commonly used in the flashing of low slope roofs?

Aluminum is commonly used in the flashing of low slope roofs due to its excellent characteristics for weatherproofing and durability. This metal is lightweight, yet strong enough to withstand the effects of wind, rain, and snow, which is particularly important for low slope roofs that are more prone to water pooling and leakage. The corrosion resistance of aluminum also makes it suitable for various environmental conditions, ensuring the longevity of the flashing.

Unlike wood, which is susceptible to rot when exposed to moisture, and brick, which may not provide the necessary waterproof protection, aluminum offers a reliable solution. Plastic, while also resistant to moisture, does not have the same durability and structural strength that aluminum provides for roof applications. Therefore, aluminum is the preferred choice for flashing in low slope roofing systems.