A roller load assisted roof-top carrier for elongate articles such as kayak boats. The roof-top carrier includes a space frame having at least a U-shaped portion, the legs of which are each slidingly mountable to each of a front and back cross bar of a vehicular roof rack. In this manner, the space frame translates unitarily relative to the vehicular roof rack. Forward and back cross members are provided that are mounted upon the space frame, the front cross member carrying a pair of kayak saddles, each faced with a friction inducing material for discouraging slippage between a secured kayak and the space frame and the back cross member carrying a pair of guide panels, each faced with a slip inducing material for encouraging slippage between a kayak being loaded on or unloaded from the space frame. A roller can be mounted on a back portion of the space frame.