Pipe insulation is beneficial for use on both hot and cold water pipes. For hot water pipes, insulation can keep the water temperature up to 2 degrees higher compared to without insulation. This in turn reduces the energy needed to heat the water. For cold water taps, insulation is invaluable for the prevention of the pipes freezing. Freezing can lead to cracks or blockages in the pipes and so it is vital to protect it from this, especially in vulnerable locations such as in exterior walls or below ground. Pipe insulation, in addition to these benefits, also reduces the pipe sweating which can lead to rot and mould in the surrounding area. Therefore, pipe insulation is a worthwhile investment in order to reduce energy bills and costly repairs.