Abstract: A roll tarp system for use upon vehicles and trailers with rear doors or gates. The roll tarp system includes a tarp attached to a side of a container, a roller attached to the tarp opposite of the container, a rear inner arm pivotally attached to the container, a first bias member attached to the rear inner arm, a rear outer arm attached to the first bias member, a second bias member attached to the rear outer arm and rotatably connected to a rear end of the roller and a front support structure rotatably connected to a front end of the roller.

Abstract: A roll tarp system for efficiently covering a heaped load. The roll tarp system includes a tarp attached to a side of a container, a roller attached to the tarp opposite of the container, a rear bracket attached to a rear end of the container, a rear inner arm pivotally attached to the rear bracket, a rear outer arm pivotally attached to the rear inner arm, a front bracket attached to a front end of the container, a front inner arm pivotally attached to the front bracket, a front outer arm pivotally attached to the front inner arm, and an actuator attached to the front inner arm and the roller for rotating the roller. A rear spring and a front spring are attached to the brackets respectively for applying a closing bias force upon the inner arms respectively. A front bias member is attached between the front inner arm and the front outer arm.