Battens are typically installed _____ across a roof.

Battens are typically installed horizontally across a roof. This installation method provides several benefits, particularly when it comes to roofing systems such as those using shingles or tiles. By placing the battens horizontally, they create a framework that helps to support the roofing materials, allowing for proper water shedding and ventilation. This orientation also aids in securing the roof covering against wind uplift.

Horizontal battens facilitate the alignment and spacing of roofing materials, ensuring that they lay flat and create a uniform appearance. Additionally, this orientation helps in managing water drainage, as any water that collects on the roof will naturally run off more effectively when guided by the horizontal battens.

Understanding the correct orientation for battens is crucial for maintaining the integrity and performance of the roofing system, which ultimately assures greater durability and protection against the elements for the structure below.