• If providing permanent heat in enclosed/perimeter spaces is impractical, consider one or more of the following: o Insulate around water-based components to help maintain temperatures not less than 40°F o Utilize safe, temporary heat (space heaters with safety interlocks, electric heat tracing, etc.) during periods of sub-freezing temperatures o Install low-temperature alarms set for 40°F in at-risk spaces/area • In manufacturing facilities, identify critical production and process equipment that relies on water or steam: o Locate in heated areas or provide heat tracing, steam jacketing, air drying, or anti- freeze o Drain condensate lines frequently – Drain and secure idle equipment o Use low temperature lubricants for blowers, pumps, compressors o Regularly check pressure vessel vents and safety and relief valves to help prevent freeze ups from water/vapor build up
• For dry pipe fire sprinkler systems in unheated spaces, monitor low air pressure and waterflow, ensure piping slopes to low point auxiliary drains, and clear drains regularly.
• For anti-freeze fire sprinkler systems, confirm anti-freeze levels are tested per NFPA 25.
• In warmer locations, implement a freezing weather watch to confirm building is prepared.
Key Equipment/Operations Key equipment/operations include areas of high value and/or water susceptibility, which could be impacted in a water damage event. Examples: • Primary building utility areas (electrical, mechanical). • Sensitive electronic equipment (data/telecom equipment, process control rooms). • Highly susceptible inventory storage (food, precision electronics). Ideally, key areas/operations should not be on sub-grade levels or directly below areas with a high potential for accidentally released water, like restrooms, kitchens, or mechanical rooms. Also, avoid areas where water and drainage lines are located at ceiling level. If rerouting lines is not practical: • Seal ceiling penetrations with water-tight materials. • Piping connections should be welded, brazed, or soldered and should not be threaded, flanged, gasketed, or have compression fittings. • Provide collection pans for secondary containment (concentric piping). • Label and equip water lines with accessible isolation valves. • Install and monitor water leak detection.
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