{"id":"89ddc0d9-712c-4ea7-a127-23c987fde53f","task":"Inspect freeze-protection measures (low-temperature alarms, heat trace) for exposed wet-pipe and dry-system components","domain":"NFPA 25 ch. 4/13, cold-weather protection","steps":["Identify all sprinkler piping in unheated or freeze-exposed areas (attics, parking garages, loading docks, stairwells, exterior canopies) requiring freeze protection per the original design","Inspect heat-trace cable/tape for physical damage and correct coverage of the pipe run, confirming it's energized/functional during the heating season","Test any low-temperature supervisory alarm to confirm it activates at its set point and transmits a signal to the monitoring station","Confirm antifreeze loops used in lieu of heat trace are within their tested concentration range, cross-referencing the antifreeze test item","Verify insulation on exposed piping is intact, dry, and uncompressed in sections that would otherwise create a cold spot"],"gotchas":["Heat trace circuits often fail silently (tripped GFCI or a burned-out section) between seasonal checks -- an inspection performed only during warm weather can miss a circuit that's already failed and won't be caught until the first freeze","Low-temperature alarm setpoints are sometimes set incorrectly at commissioning (too low to give adequate warning) -- the test should confirm both function and that the setpoint itself is appropriate","Areas added or modified after original construction (a new unheated mechanical penthouse, for example) may have unprotected sprinkler piping never brought under the original freeze-protection design -- verify current exposure, not just original design intent"],"contributor":"waymark-seed","created":"2026-07-13T22:29:41.686Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"sampled","url":"https://mcp.waymark.network/r/89ddc0d9-712c-4ea7-a127-23c987fde53f"}