To provide a good appearance without exposing a member for attaching an eaves ceiling panel at the eaves side to the outside, no gap is created between neighboring eaves ceiling panels by a simple configuration, and members for attaching the eaves ceiling panel to the eaves side can be piece members thereby reducing construction cost.

An inserted piece 3 protruded in a direction parallel to the direction along the eaves is provided at a bottom end portion of an attaching fittings 2 fixed to an eaves beam 1. An insertion hole 7 is formed at a side frame member 6 of the eaves ceiling frame 5 provided at an outer peripheral portion of a rear surface portion of the eaves ceiling panel 4. The insertion hole 7 of a side frame member 6 of the eaves ceiling panel 4 fitted to an insertion piece 3 of the attaching fittings 2 is fitted to the insertion piece 3 from the inner surface side of the side frame member 6. The insertion hole 7 of the side frame member 6 of other eaves ceiling panels 4 adjacent to the eaves ceiling panel is inserted to the outer surface side of the side frame member 6 to the inserted piece, and the side end portions of the adjacent eaves ceiling panels 4 are placed closer and faced each other.