Can anyone give some guideance as to what to use on the edge along the back of a ute to reprevent moisture accumulating under the tarp. As the ute is parked out side it tends to rust along top of sides as the tarp retains moisture for a long time. I have seen photo with rubber like strips - the other option in professional Spray on Rhino liner - however I would prefer a do it yourself remedy

thanks,

Scott