wood lag screw

The wood lag screw is specifically designed for securing photovoltaic systems onto fiber cement roofing installed over a wooden substructure. It provides a direct and solid connection between the mounting rails and the roof structure, ensuring excellent mechanical performance.

Thanks to its wood-optimized thread, the screw penetrates efficiently into the wooden structure—often without the need for pre-drilling—making installation faster and easier. It comes pre-fitted with a spacer to compensate for the thickness of the fiber cement sheet and to ensure a stable and long-lasting attachment.

This solution is ideal for agricultural, industrial, or residential buildings with fiber cement roofing on wooden framing, offering a reliable, fast, and roof-adapted installation method tailored to the specific demands of this type of structure.