Racking

Racking refers to the mounting system that secures solar panels to rooftops, building surfaces, or the ground. It is a critical component of every solar installation, providing structural support while positioning panels at the optimal angle for sunlight exposure.

Roof-mounted racking systems attach to the roof structure using bolts and flashing to maintain a waterproof seal. They typically hold panels a few inches above the roof surface to allow airflow for cooling. Ground-mount racking uses posts driven into the ground or set in concrete footings, with adjustable frames that can be tilted to the ideal angle for your latitude. Some ground-mount systems include single-axis or dual-axis tracking motors that follow the sun throughout the day, increasing energy production by 15–25% compared to fixed mounts. Racking materials are usually anodized aluminum or galvanized steel, chosen for their durability and corrosion resistance. Racking costs typically account for 5–10% of the total solar system price.