Weather events
Weather conditions that trigger, amplify or reveal hidden building failures.
Cold snap
Rapid temperature fall exposes cold surfaces, air leakage and freezing risk.
Freeze-thaw cycle
Water freezes and expands in porous materials and joints.
Heatwave
High temperature changes equipment loads, material movement and indoor humidity behavior.
Heavy rain
High runoff and soil saturation expose drainage limits.
Prolonged high humidity
Materials receive little drying potential over an extended period.
Snowmelt
Stored snow releases water during thaw, sometimes far from the original storm.
Storm wind
High pressure and suction can lift coverings and drive air or water through openings.
Wind-driven rain
Rain combined with directional wind tests joints that remain dry in calm weather.