What material is recommended for a cricket if the chase is more than 30 inches wide?

For a cricket that is designed to divert water away from a chimney or a roof penetration and if the chase is more than 30 inches wide, utilizing sheet metal is the recommended material. Sheet metal is preferable in this scenario due to its durability, resistance to weathering, and the ability to be easily formed to create the appropriate angles necessary for effective water diversion.

The nature of roofing materials requires something sturdy and robust, especially when dealing with larger chases, which can accumulate more water. Sheet metal resists rust and corrosion when properly coated, making it ideal for long-term performance in various weather conditions. It can be tailored to fit specific applications, ensuring a tight seal and preventing leaks.

Other materials may not provide the same level of protection or durability in such a significant application. For example, wood could deteriorate over time due to moisture exposure, and plastic might not withstand the weather conditions that a cricket encounters. Fiber cement, while more durable than some other materials, may still lack the flexibility and ease of installation that sheet metal offers for this particular use-case.