How does a Batten function in a metal roofing system?

In a metal roofing system, a batten serves an important structural and functional role by covering the joints between panels. This action enhances the weather-tightness of the roof by preventing water infiltration at the joints, which are potential leak points. By providing a secure fastening point, battens help to anchor the metal panels and allow for thermal expansion and contraction without compromising the integrity of the roof.

While they can add aesthetic appeal, the primary purpose of battens is related to the protection and longevity of the roofing system through joint coverage. This is essential for maintaining the overall durability and performance of the roof in varying environmental conditions, ensuring that the roof remains watertight and resilient over time.