Quick Answer
Proper spacing for solar racking involves maintaining a 1/8 inch gap between each racking clip, and a 1/4 inch gap between clips and the solar panel frame. This gap allows for thermal expansion and contraction without compromising the structural integrity.
Choosing the Right Racking System
When selecting a solar racking system, consider the type of installation (ground mount, roof mount, or pole mount) and the panel’s size, weight, and type. Ground mounts, in particular, require a sturdy racking system that can withstand wind and snow loads. Look for systems with adjustable clips and a durable frame design to ensure secure panel mounting and easy adjustments.
Measuring and Marking the Site
To ensure accurate spacing, measure the site and mark the racking locations using string and stakes. Calculate the panel’s center-to-center spacing, typically 12-18 inches for most residential installations. Use a level to ensure the marks are straight and level. This step helps prevent costly mistakes and ensures a seamless installation process.
Installing Racking Clips and Panels
Begin by installing the racking clips according to the manufacturer’s instructions, leaving the recommended gap between each clip. Use a torque wrench to secure the clips to the ground, and then attach the solar panels, making sure to align the center marks with the racking clips. As you install each panel, double-check the spacing and adjust as needed to maintain the specified gap. This ensures proper thermal expansion and prevents damage to the panels or racking system.
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