What should be done to minimize freezing in exposed pipes during cold weather?

Insulating the pipes is a highly effective method for minimizing the risk of freezing during cold weather. Insulation helps to create a barrier that retains heat within the pipes, maintaining a temperature above freezing even when the external temperature drops significantly. This is especially important for pipes located in unheated areas, such as attics, basements, or exterior walls, where exposure to cold air can rapidly decrease the temperature of the water within.

In addition to preventing freezing, insulation also helps to improve energy efficiency by reducing heat loss in hot water pipes. When pipes are well-insulated, it means that hot water will maintain its temperature longer, resulting in energy savings and more consistent water temperature throughout the plumbing system.

Other methods mentioned, such as covering the pipes with plastic sheets or painting them with heat-resistant paint, may provide limited benefits but are not as effective as insulation in preventing freezing. Reducing water flow can risk stagnation and may not provide a practical solution to freezing issues. Therefore, insulation remains the most reliable and efficient approach to protect exposed pipes during cold weather.