The thaw is when the flooding starts
Ice splits the pipe, but the ice also plugs it. The water only runs once the section thaws, often the next morning or when the heat comes back on, and by then nobody is watching that wall.
- Pipes in exterior walls of bungalows and enclosed porches
- Supply lines under raised houses and in crawlspaces
- Hose bibs and lines to garages that were never drained
- Vacant units and seasonal homes with the heat turned down
- Stairwell and vestibule piping in older apartment buildings
