I moved into a house a few months ago. It had been re-roofed but the previous owners chose not to replace the barge boards. Instead, the slates finish in line with the gable end with a messy job of pointing underneath. The purlins still stick out. I'd like to restore this victorian stone house to its former glory but worried about cost. My question is do I need to re-slate on top of the barge board, or is there something else I could do - lead or something? Thanks....