Abstract: In various embodiments, the mounting systems described herein may be configured to mount a solar panel array to a flat concrete roof like those found throughout the Caribbean and Central and South America. Other systems described herein may be configured to facilitate mounting structures on standing seam metals roofs. Still other systems described herein may be configured to facilitate mounting structures on composite shingle, slate, or tile roofs. The mounting systems described herein may be configured as rail-less or rails free roof mounting systems.