NOVELTY - The material (1) has a vertical piece-shaped attachment receptacle part (12) attached with an external part (2) extended on a solar cell panel (6). A substrate fixes a reverse L-shaped fixing part (11) to bolting material (53). A flat shaped holding part (14) is aligned on a ledge end i.e. upper/lower surface, of the cell panel. A back surface space (62) is formed between the cell panel and the substrate. A groove-shaped attaching part (22) is provided in an aquatic surface side. A mounting part is formed in an outer side of a rising part (32).    USE - Material for attaching an external part i.e. snow guard tool, to an exterior structure i.e. snow guard structure, that constructs a solar cell panel on a substrate i.e. support fixture.    ADVANTAGE - The holding part is aligned on the ledge end of the solar cell panel such that the fixing part cannot be prepared separately and the material serves as the fixing part, so that reduction of material of a construction process can be fulfilled and a standing-up form part of standing-up material discharges air in the back surface space of the solar cell panel, so that exhaust heat in the back surface space of the solar cell panel can be performed smoothly, thus suppressing decline in generating efficiency of a photovoltaic cell. The solar cell panel is positioned along flow direction at a separation state by a fixed space such that the material and the external part can be provided in the space, so that effect of removing snow on the space can be performed in an easy manner, thus obtaining the material with high durability.    DESCRIPTION OF DRAWING(S) - The drawing shows a plan view of a snow guard structure, side view and perspective views of attachment material.    Attachment material (1)    External part (2)    Solar cell panel (6)    Reverse L-shaped fixing part (11)    Vertical piece-shaped attachment receptacle part (12)    Flat shaped holding part (14)    Groove-shaped attaching part (22)    Rising part (32)    Bolting material (53)    Back surface space (62)