While subfreezing temperatures pose serious dangers for your pipes, not every frozen pipe will burst. However, older pipes, exposed pipes, and uninsulated pipes are much more likely to burst during extended cold spells.
In fact, burst pipes are one of the most common causes of property damage during frigid weather. The resulting mess can lead to thousands in water damage—easily $5,000 or more, according to the Insurance Institute for Business and Home Safety (IBHS).
Pipes typically burst when exposed to extremely low temperatures for an extended period of time (anywhere from 1-3 days depending on temperature). This is especially true for pipes located on exterior walls. A frozen pipe is likely to burst when any water or liquid trapped within it freezes and begins to expand.
Pipes in attics, crawl spaces, and outside walls are all vulnerable to freezing, especially if there are cracks or openings that allow cold, outside air to flow across the pipes. “Wind chill,” the cooling effect of air and wind, can play a major role in accelerating freezing and bursting of water pipes.
However, the 20 degrees F “temperature alert threshold” should address the majority of potential burst-pipe incidents in southern states. Water freezes when heat in the water is transferred to subfreez- ing air. The best way to keep water in pipes from freezing is to slow or stop this transfer of heat.
It's not that a small flow of water prevents freezing; this helps, but water can freeze even with a slow flow. The running water will allow relief from building pressure in the pipes so they do not burst.
Pipes typically freeze when the temperature around the pipe is below 20 degrees. When water gets that cold, it freezes and expands, which increases the pressure in your pipes, causing them to burst. This means unheated spaces are more vulnerable—think basements, attics, and garages.
So, exactly how cold does it need to be before you do this? Southern Living says professionals list the threshold temperature for pipes to freeze at 20 degrees Fahrenheit, meaning this or anything below can create a potential for water to turn to ice in your pipes.
Here's a list of ways to prevent freezing pipes in your home: Keep the thermostat at a minimum of 68 degrees Fahrenheit. Make sure pipes are properly insulated.
Accidental water damage that occurs as a result of a sudden, unexpected occurrence like a burst pipe is often covered by a homeowners insurance policy. In addition, cleaning, repair or replacement of wood flooring, drywall and even furniture due to water damage as a result of a burst pipe typically is covered.
People often assume signs of a burst pipe are obvious: rushing water sounds and flooded rooms. Unfortunately, ruptured lines can go undetected for weeks, depending on where they are and the severity of the damage.
Apply heat until full water pressure is restored. If you are unable to locate the frozen area, if the frozen area is not accessible, or if you can not thaw the pipe, call a licensed plumber.
If you live in a climate with freezing temperatures, you'll want to cover your outdoor faucets in the winter rather than dripping them. Even with a vigorous drip, frigid temperatures can travel through your faucet and freeze the connecting pipes. Before using a cover, you'll need to properly winterize your faucet.
Your pipes are at risk of freezing any time temperatures drop below 32°F. However, it's much more common for pipes to freeze when temperatures dip below 20°F.
The majority of these accidents involve the elderly or people with disabilities and children under the age of five. The U.S. Consumer Product Safety Commission (CPSC) urges all users to lower their water heaters to 120 degrees Fahrenheit.
Pipes most at risk of freezing are exposed to the coldest temperatures, such as those in unheated areas like attics, crawl spaces, and garages. To help prevent your pipes from freezing, insulate them with pipe insulation or heat tape.
Yes, pipes can freeze overnight if temperatures plummet drastically. Uninsulated pipes in unheated areas like attics or exterior walls are most vulnerable.
Burst water pipes are a common occurrence affecting many Australian homes yearly.
The truth is, you only need to allow one of your faucets to drip. This faucet should be the farthest away from the area where water enters your home through the pipes.
Prevent Frozen Pipes
Moving water keeps pipes from freezing. Find shut off valves for emergencies. Insulate pipes in unheated areas. Open cupboards and vanities to warm pipes.
Another telltale sign is the sound of water running or cascading inside your walls when no faucets are in use. This isn't the usual gurgling caused by water pressure changes; it's an abnormal sound that signals a potential leak or burst pipe. Ignoring this can lead to significant water damage over time.
The national average cost of burst pipe repair is between $200 and $1,000, with most people paying around $500 for a moderate repair with a new section of pipe added. At the low end of the spectrum, for a minor repair that doesn't involve pipe replacement, you can expect to pay $150.
In a winter cold spell, water pipes may develop ice and form a blockage. If left untreated, this can lead to increased pressure, causing the pipe to burst. A burst water pipe in your home can cause more than $5,000 in damage, so it's important to act quickly.