Securing configuration of solar cell module

A securing configuration of a solar cell module comprising:

• a plurality of supporting members which have pairs of plate-like supporting pieces projecting to the upper side and are mounted on roof members at a predetermined interval such that a direction in which the supporting pieces are opposed to each other face to a predetermined direction;
• a plurality of crosspiece members each of which is inserted between the pairs of supporting pieces of the supporting members, is supported by the plurality of supporting members, has at least first holding portions which hold first fastener members in a slidable manner only in a lengthwise direction on both side faces and a second holding portion which holds a second fastener member in a slidable manner only in the lengthwise direction on an upper face, and is secured to and supported by the supporting members by fastening the first fastener members held by the first holding portions and to-be first fastener members fastened to the first fastener members so as to penetrate through the supporting, pieces of the supporting members, and which are arranged on roof members at a predetermined interval in a direction perpendicular to the lengthwise direction;
• and
• securing members which secure the solar cell module installed on each of the upper faces of the plurality of crosspiece members such that two sides of the solar cell module, which are opposed to each other, are intersected with the plurality of crosspiece members to the crosspiece members through the second fastener members held by the second holding portions of the crosspiece members.