Can an old slate roof be repaired without causing further damage?
Most slate roofs are actually very durable and can withstand the necessary foot traffic of workmen. Hook ladders and roof planks can be used to distribute the weight of workmen, and they do help. However, a few broken slates can be expected and are easily repaired in the process of repairing the existing roof. If the work is done carefully by trained workmen, a slate roof will not be ruined by craftsmen replacing broken slates and damaged flashings.