As is the case with any slate roof, it's particularly vulnerable to damage from ice build up, improperly installed gutters and other factors.  Often, the solution is to remove several courses of slate across the roof to make the necessary repairs. 

The Noah Carter House, which dates back to 1853, needed some carpentry repairs in that lower eave area. Some of the original roof deck boards were 18 inches wide- a dimension unheard of in modern construction. Andrew Hazlett (left) and Kevin Hazlett re-laid a starter course during this repair. The roof was put back together matching the original slate layout and re-using about 90 percent of the original slate.