"As the University of Illinois at Urbana-Champaign considers installing more solar photovoltaic modules on the roofs of buildings, the discussion turns to the type of mounting systems to consider. This discussion often elicits the tale of the modules that were originally installed on the roof of the Business Instructional Facility (BIF) using a ballast-mounted system, that is, a mounting system held down using heavy weights such as concrete blocks. The story goes that a few of the PV modules blew off the roof of the building, and this subsequently led to the modules being installed with a racking system attached to the roof of the building.

This story is an urban legend..."

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