A bottom trim member attaches a curved sheet to a surface. The bottom trim
member includes a connecting part having a sheet receiving component that
is configured to receive a bottom portion of the curved sheet, and a
connecting leg extending in a downward direction relative to the curved
sheet. A seal and cover member is attachable between the connecting leg
and the surface and surrounding the connecting leg. With this
construction, the seal and cover member serves to provide a moisture seal
between the bottom trim member and the surface on which the trim member
is mounted and serves to cover an area through which a fastening member
can be placed to fix the trim member to the surface.