Tips for preventing frozen water pipes
Frozen water pipes can cause an enormous amount of damage to a property. Even if the house is occupied and heated, pockets of cold areas outside of the heated space can freeze.
When pipes freeze, the water expands and cracks the pipe. When it thaws again, the water will spray out of the pipe until it is shut off and repaired.
Pipe insulation is inexpensive and easy to precaution to take. If you know that there are unheated areas, when the temperature drops very low, you can leave a sink running just a tiny bit to keep water moving so it won’t freeze.
Here is a link with many more tips for preventing frozen pipes: WikiHow Prevent Frozen Pipes