A roof apparatus (10) for a vehicle includes a shoe member (22) and a support member (23) including an end portion (23b) rotatably connected to the shoe member within a predetermined rotation range. One of the end portion of the support member and the shoe member integrally includes first and second vertical wall portions (32) and a support portion (24) including a large diameter portion (24a) and a small diameter portion (24b). The other of the end portion of the support member and the shoe member includes a bearing portion (43) pivotally supporting the large diameter portion and including an opening (43a) through which an insertion and removal of the small diameter portion is allowed in a state where the support member is positioned out of the predetermined rotation range and through which the insertion and removal of the small diameter portion is prohibited in a state where the support member is positioned within the predetermined rotation range.