A foldable roof, including a plurality of elongated plates, for being disposed one aside the other, and a plurality of supporting members each for supporting one of the elongated plates, where each two adjacent supporting members of the supporting members are pivotally connected to one another, thereby allowing deploying and folding the elongated plates, and for each of the plates and its supporting member, gravity disposition elements configured to allow perpendicular displacement between the plate and the supporting member while limiting parallel displacement therebetween, thereby at any state of the foldable roof except for a folded state, each plate is connected to the supporting member thereof by gravity only.