To ensure frost protection when installing water supply piping, what should be done?

The best choice for ensuring frost protection when installing water supply piping is to insulate water supply pipes that run inside exterior walls. Insulating these pipes creates a barrier against the cold temperatures that can lead to freezing. This insulation helps to maintain a higher temperature within the pipes, which is crucial in preventing the water from turning into ice during extreme cold conditions.

Insulation is particularly vital in areas where pipes run against exterior walls, as these surfaces are more susceptible to low temperatures. By effectively insulating, you can significantly reduce the risk of freezing, which can lead to burst pipes and costly repairs.

While using thicker pipes, installing pipes below the frost line, and utilizing freeze-resistant materials are all methods that can contribute to frost protection, the insulation of pipes located in unconditioned spaces, such as exterior walls, directly addresses the immediate risk of freezing in those critical zones. This practice is a standard procedure in plumbing to protect both the system and the integrity of the structure.