Which of these is most commonly used for copings in low-slope metal roofing systems?

The most commonly used option for copings in low-slope metal roofing systems is metal caps to weatherproof the top of the parapet wall. Metal copings play a crucial role in protecting the edges of a roof and parapet walls from moisture penetration and weather-related damage. They are designed to deflect water away from the building structure, ensuring that water does not infiltrate the wall and compromise the integrity of the roofing system.

Using metal for coping is advantageous because it provides durability and longevity, crucial for areas exposed to harsh weather conditions. The resistance of metal to rust, when properly coated, helps ensure that copings maintain their protective function over time. Additionally, metal copings can be designed to match the aesthetic element of the roofing system, provide a clean finish, and facilitate transitions from vertical to horizontal surfaces, which is particularly important in low-slope roofing systems.

The other options mentioned do not typically serve as effective copings in low-slope metal roofing. Wooden beams, for instance, are not suitable for this application because they can deteriorate due to moisture exposure over time. Vinyl materials, while easy to install, may lack the durability and protective qualities needed for effective coping in environments subject to significant weather challenges. Concrete slabs, although providing stability