Which type of cut is utilized to create a planned opening for prying roof decking?

The triangle cut is utilized to create a planned opening for prying roof decking due to its designed geometry, which maximizes the structural integrity of the roof while providing a sufficient opening for firefighters. This type of cut allows for effective ventilation and access to the space beneath the roof, facilitating proper firefighting operations.

When creating a triangle cut, the sides converge towards a point at the apex, allowing for easier handling and manipulation of the roof decking once cut. The triangular shape helps to ensure that the weakest points of the roof structure are not compromised, thus maintaining stability during firefighting efforts.

In contrast, other cuts such as the square cut and circle cut may create openings that do not allow for the same level of control or access, while a V-cut specifically serves different ventilation needs, focusing on airflow rather than just creating an opening to pry away decking. The triangle cut stands out for its balance of efficacy and structural preservation in a firefighting context.