Secure the rails to your mounts: Reduce the rails (also known as strut channels) to length if important, so They're ready to support all the solar panels from the array. Protected the rails towards the mounts using the screws which include the racking procedure. This in depth tutorial will wander https://bluetechsolarcell.com/solar-cell-%e0%b8%81%e0%b8%b1%e0%b8%9a-solar-rooftop-%e0%b9%81%e0%b8%95%e0%b8%81%e0%b8%95%e0%b9%88%e0%b8%b2%e0%b8%87%e0%b8%81%e0%b8%b1%e0%b8%99%e0%b8%ad%e0%b8%a2%e0%b9%88%e0%b8%b2%e0%b8%87%e0%b9%84%e0%b8%a3/