End Dams, Drip Throats, And ES-1 Tested Securement: The Coping Checklist That Stops Parapet Leaks Parapet walls are among the most leak-prone areas on any commercial building, and the coping cap is usually where problems start. When an Exterior Insulation and Finish System (EIFS) wraps a parapet, the coping details determine whether water stays...
