This area sits in a moderate heat climate band, and that's the main force working against doors here, not cold or snow load. Steel panels and the seals around them go through constant thermal cycling - hot sun on the panel face, then cooler nights - and over enough years that cycling is what dries out bottom seals, loosens weatherstrip channels, and eventually warps thinner panel stock enough that it stops sealing tight against the slab. Mission Bend's housing stock mostly dates to the 1980s and 90s, so a lot of original doors here are now pushing 35 to 40 years of that cycling without ever being replaced. Add in a torsion spring that was only ever rated for a set number of cycles, and a door built the same year the house was framed is well past the point where spring fatigue and seal failure show up at the same time. None of this is storm damage or a single event - it's slow wear from heat exposure stacking up on original equipment that was never meant to last four decades.