Photovoltaic module mounting assembly

A photovoltaic module mounting assembly, comprising:

• a mounting device attachable to a building surface;
• a mounting plate positioned on said mounting device;
• a lower bracket comprising first and second legs, wherein said first leg is positioned on said mounting plate, wherein a free end of said first leg fails to extend beyond a location in a first dimension that coincides with an outer perimeter of said mounting plate, and wherein said second leg extends away from said first leg in a second dimension;
• and
• an upper bracket comprising third and fourth legs, wherein said third leg of said upper bracket and said first leg of said lower bracket are spaced from one another in said second dimension, wherein said fourth leg of said upper bracket extends away from said third leg of said upper bracket and engages said second leg of said lower bracket;
• and
• a threaded clamp fastener that extends through said third leg of said upper bracket, through an open space between said third leg of said upper bracket and said first leg of said lower bracket, through said first leg of said lower bracket, through said mounting plate, and into threaded engagement with said mounting device, wherein said second leg of said lower bracket is located between said threaded clamp fastener and said fourth leg of said upper bracket in said first dimension, wherein a first mating surface of said second leg of said lower bracket comprises a plurality of spaced teeth and projects toward said fourth leg of said upper bracket, wherein a second mating surface of said fourth leg of said upper bracket comprises a plurality of spaced teeth and projects toward said second leg of said lower bracket, and wherein said first and second mating surfaces are disposed in interlocking relation to restrict relative motion between said upper bracket and said lower bracket in said second dimension.