IronRidge L-Feet Kit and Hardware, Qty. 4 IronRidge provides a number of attachment options for solar PV modules and solar mounting solutions. The first is an adjustable L-foot component. Made of extruded aluminum, these L-feet are strong enough for both residential and commercial solar PV module installations. The vertical slots make it easy to level the PV array when there are irregularities in the roof. When increased airflow or roof flashing is required, IronRidge offers two different types of standoffs. Lightweight aluminum standoffs are available for flush mount solar PV module applications, Heavy-duty, welded steel standoffs are available for tilt mount solar mounting applications.