After inspection of this historic property, the chimney flashings and valleys seemed to be past their service life. They had been reworked and patched with roof cement which expands when hot and shrinks when cold. The change in temperature caused leaks in the winter, but it ‘repaired’ itself in the summer when the cement expanded back. The Galvanized steel ridges had also been past their service life. The flashings, valleys, and ridges were all replaced with copper.
The roof of this home is mainly comprised of Virginia Buckingham slate. Over the years, repairs have been done with several types of Vermont slates. In our repairs, we installed Virginia Buckingham slate to match the existing roof and removed the slate that did not match.