Illinois Roofing Practice Exam 2025 – 400 Free Practice Questions to Pass the Exam

A batten system is commonly used in conjunction with tile or slate roofing primarily to provide ventilation. This system consists of vertical strips, or battens, that create space between the roofing material and the roof deck. This space facilitates airflow, allowing moisture to escape and preventing issues like mold or decay under the tiles or slates, which can be detrimental to the longevity and integrity of the roofing structure.

While enhancing aesthetics can be a benefit of how roofing tiles are laid, this is not the primary purpose of a batten system. Similarly, while a batten system can help with load distribution, the main function relates to improving ventilation rather than just strengthening the bond between the tiles and the framework. Reducing weight on the roof is not applicable here, as the use of tiles or slates inherently contributes significant weight, and the batten system does not serve to lessen that load.