When temperatures drop hard and fast, fire sprinkler systems can take a hit, especially in areas that aren’t well insulated or don’t see daily foot traffic. After a severe cold snap, a few quick daily checks can help catch small issues before they turn into major water damage or system impairments.

Here’s what we recommend keeping an eye on.

Garage drum drips
Garage areas are common trouble spots during extreme cold. Check drum drips for signs of freezing, leaks, or damage. Ice buildup or dripping once temperatures rise can be an early warning sign of a freeze-up.

Attic low-point drains
Low-point drains in attics are especially vulnerable in cold weather. Look for ice, cracked fittings, or moisture around drain valves. If these freeze, it can indicate broader issues within the system.

Attic sprinkler systems in general
Any sprinkler piping located in attic spaces should be closely monitored. Watch for condensation, unusual sounds, visible ice, or water stains on ceilings below. These can all point to freezing or thawing issues.

Mechanical penthouses
Mechanical penthouses often have sprinkler piping near exterior walls or rooflines. Make sure heating systems are operating properly and that sprinkler components aren’t exposed to cold air infiltration.

Low-insulated areas
If there are areas of the building with limited insulation, consider adding temporary heat during extreme cold. Even small heat sources can help maintain safe temperatures around sprinkler piping and valves.

What to Do If You See a Freeze-Up

If you suspect a sprinkler pipe has frozen or is starting to freeze:

• Call your fire protection service provider immediately. Early action can prevent a burst pipe.
• Do not close a system control valve unless instructed to do so. Closing a valve without authorization or proper procedure can impair fire protection and create compliance issues.
• Monitor the area closely. If ice is present, rapid thawing can cause pipes to crack or fail.

How to Help Prevent Water Damage

• Keep heat on in vulnerable areas, even during off-hours or weekends.
• Seal gaps or openings that allow cold air into sprinklered spaces.
• Avoid using open flames or unapproved heaters to thaw pipes.
• Address minor leaks or condensation right away before temperatures fluctuate.

Cold weather damage often doesn’t show up immediately. A few minutes of daily checks after a severe cold snap can make the difference between a simple service call and extensive repairs.

If you have concerns about your fire sprinkler system or need assistance after extreme weather, contact Oliver Fire Protection & Security. We’re here to help keep your system protected and ready when it matters most.