What Pennsylvania Climate Data Reveals About Metal Roofing Performance
We analyzed Lancaster County's weather patterns to understand what roofing materials actually face here. The numbers tell a clear story about durability and cost. Lancaster County averages 20 inches of annual snowfall, with individual storms dumping 12-14 inches of heavy, wet snow. That pushes right up against the typical 40-50 pounds-per-square-foot roof design limit.







