Can Critter Quitters be Used on New Roofs

Yes, Critter Quitters are designed to be used on undamaged flashings along with damaged flashings. Also since they are repairs, there is no reason you cannot continue to use them when you reroof and not change your flashings, especially if code requires you use something other than a lead flashing. Lead is the best out there, it will last decades if not chewed up. Critter Quitters stop the chewing and the plastic we use will last decades in sunlight, so you should be good to go.