NOVELTY - Photovoltaic module assembly for mounting on a racking system of a photovoltaic module installation site, comprises at least one photovoltaic module including a back sheet, at least one crystalline silicon photovoltaic cell supported on the back sheet, a first encapsulant layer supported on the photovoltaic cell, and a cover sheet supported on the first encapsulant layer; at least one rail; and adhesive disposed between and contacting the back sheet of the photovoltaic module and the rail to adhere the rail to the photovoltaic module.    USE - The photovoltaic module assembly is useful for mounting on racking system of photovoltaic module installation site (claimed).    ADVANTAGE - Photovoltaic module assembly including short rails and capable of being mounted to a racking system in a landscape orientation while reducing breakage of the crystalline silicon photovoltaic cell, back sheet, and/or cover sheet due to loads applied to the photovoltaic module assembly while mounted on the racking system, is provided.    DETAILED DESCRIPTION - Photovoltaic module assembly for mounting on a racking system of a photovoltaic module installation site, comprises at least one photovoltaic module including a back sheet, at least one crystalline silicon photovoltaic cell supported on the back sheet, a first encapsulant layer supported on the photovoltaic cell, and a cover sheet supported on the first encapsulant layer; at least one rail fixed relative to the back sheet and being configured to support the at least one photovoltaic module on the racking system of the photovoltaic module installation site; where the photovoltaic module defines a width and a length greater than the width, the rail extending along the width for mounting the photovoltaic module to the racking system; and adhesive disposed between and contacting the back sheet of the photovoltaic module and the rail to adhere the rail to the photovoltaic module, the adhesive being formed from a silicone composition; the rail including a base for abutting the racking system and a pair of legs extending from the base; the legs each presenting an adhesive receiving surface with the adhesive extending from the adhesive receiving surfaces to the photovoltaic module, the adhesive receiving surfaces being spaced from each other so that the legs move relative to each other when a load is applied to the module in excess of a predetermined level.