Flashing and counterflashing

摘要

A sealing system for sealing a cover about a roof opening. The system includes a perimeter sill having as a retaining clip and tab, a counterflashing, and a retaining rod placed between the counterflashing the retaining clip for securing the counterflashing piece in place. The counterflashing piece is inserted between the retaining clip and the retaining tab. The retaining clip provides the pressure against the retaining rod to prevent the counterflashing piece from slipping. The counterflashing piece has its lower edge shaped to in contact with the building when the counterflashing piece is inserted between the retaining tab and retaining clip.