Pipes can freeze when the temperature drops below 32 degrees Fahrenheit (0 degrees Celsius) . However, the chances of pipes freezing and bursting increase as temperatures drop to 20 degrees Fahrenheit (-6 degrees Celsius) or below. The longer the weather remains below freezing, the more likely it is that pipes can freeze if not properly protected and winterized. The time it takes for pipes to freeze depends on various factors, such as the level of insulation, the location of the pipes, and the temperature outside. For example, exterior pipes freeze much faster than internal pipes, and pipes closest to an exterior-facing wall, an attic, or windows are more vulnerable to freezing. Insulated pipes can take up to six hours to freeze at 20 degrees Fahrenheit, while uninsulated pipes can freeze in just a few hours.
It is important to note that not every frozen pipe will burst, but older pipes, exposed pipes, and uninsulated pipes are much more likely to burst during extended cold spells. To prevent pipes from freezing, homeowners can take several measures, such as keeping the heating on, insulating pipes and water tanks, and leaving faucets dripping slowly. Applying heat directly to pipes, such as using a hairdryer, can also help thaw frozen pipes.
