Compared with metal pipes, PPR water pipes have a relatively low thermal conductivity, so they have a slight advantage over metal pipes in terms of heat preservation and frost resistance. But in winter, as long as the temperature is low enough to prevent the PPR water pipes from freezing, there are two things we can do: First, we must add thermal insulation casings when installing the water pipes, and take good insulation measures. When the temperature does not reach low enough, we can ensure that the water pipes are No freezing; second, when the temperature is already very low, the water in the water pipe should be drained, the main valve should be closed, and the water in the water pipe should be drained to prevent the water pipe from being frozen.
