To prevent your exposed pipes from freezing or bursting, it's important to properly insulate them before cold weather arrives. Make sure any insulation used is rated for outdoor temperatures and wrap all exposed piping in layers of insulation until they are completely covered. Additionally, you may want to consider purchasing pipe heating cables that can be wrapped around your pipes to help keep them warm in frigid temperatures. It's also a good idea to open cupboard doors underneath sinks so warmer air can circulate and help prevent pipes from freezing. Finally, make sure to shut off your outdoor water supply before the first freeze and drain out any excess water.