In the areas of your home where water piping extends through the structure, whether it be in the joist runs in your floor, against the foundation wall, inside the walls near an exterior wall or cantilever, up in the ceiling where insulation is used. Many situations can exist in this manner and keep in mind that we usually find out the vulnerabilities by incident most times.
Air movement in a home can spell disaster as the cold and freezing air can strike without warning, in an otherwise "warm" area where you would be least likely to have an occurrence. The cost of insulation is priceless against the disaster that so many plumbers encounter where a pipe or pipes were exposed to the frigid temperatures and ruptured/burst as a result. Taking the time to check for these areas where air can enter the structure is crucial. Taping up windows, putting seals around doors and checking your attic, basement and "cold" areas in your home for air movement is the key to beating the cold snap. If costs are an issue in preventing the correct materials from being used, rags, old towels cut up in strips, old newspaper, cardboard or plain paper can make a noticeable difference in slowing down the progressive motion of air into the home. Once air is standstill, you now have the opportunity to keep an otherwise cold area of your home to a stable temperature by the method of a light bulb or small heater, containing the heat produced and protecting the piping system in your home. A quick trip and $100 at your local Ace Hardware store can make the difference in keeping your home dry and water damage free.