The utility model relates to a room panel system provides a can improve wind uncovering resistant performance's roof boarding, including the bottom plate that can span two adjacent purlins, in relative two tip department of bottom plate all has the connecting portion that can fix to the installed part on, each connecting portion all include the edge the plate -fin that the tip of bottom plate is buckled and is extended, the plate -fin have two sections of upwards extending extend the section and can replace to just wind in the turning that the installed part set up down the bending segment of upwards buckling in the turning, the bending segment connects two extend the section, and one of them extend the section by the tip bending type of bottom plate becomes. The utility model discloses an in the roof boarding, its connecting portion with the installed part is connected have the bending segment structure, and its the tip intensity that not only can strengthen the roof boarding can be replaced to the corner of installed part when cooperating with the installed part, and then can effectively improve anti -wind the take off ability of roof boarding in the application process simultaneously.