How to Weatherproof Exterior Doors in Humid Climates
In humid climates, exterior doors take a beating from moisture, heat, and constant expansion and contraction. A door that looked fine in spring can start sticking, leaking, or sweating by midsummer. The best results come from treating the whole opening as a system. The slab, the jamb, the sill, the sweep, and the sealant all have to work together, especially when the air outside stays damp for long stretches. Before buying materials, check the opening in real conditi