Moisture and waterproofing come first. A thermal imaging scan identifies cold spots behind walls where water is migrating before it becomes visible as staining or efflorescence. The wall-floor joint and any pipe penetrations are checked for seal condition. Montana’s freeze-thaw cycles widen concrete cracks and stress gaskets every winter, so a shelter that was dry in October may show new intrusion points by April. The sump pump is tested under load and the French drain is checked for sediment blockage.
Seals and hatches are inspected for compression and contact. A degraded door gasket lets in both moisture and unfiltered air, two separate problems with one failed component. Air filtration flow is measured against the system’s rated output; a drop in airflow indicates a saturated filter cartridge or a duct obstruction. Filter cartridges are replaced on a schedule tied to usage hours and Montana’s wildfire smoke seasons, which can load activated carbon filters faster than calendar time alone.
Backup power diagnostics close the visit. The battery bank is tested for charge retention under load, and the generator is run at full load for a timed cycle to confirm output and fuel system condition. Remote ranch and rural properties in Montana face delayed emergency response times, which makes a fully operational shelter more critical than it would be in an urban setting. A written condition report covers every finding and flags any items that need follow-up before the next season.