This large home in Chester Springs had a cedar shingle roof that was installed with 24″ Royals at 7.5″ Exposure with tin flashings and gutters. We replaced the roof with 18″ 7/8″ Premium grade Taper Sawn Shakes with 18″ UL-rated felt paper interweaved each course and 16 oz copper flashings and gutters.
We love this system because it is installed at the same exposure as the original roof so the existing lath straps (decking) could be used. The house has an internal gutter system that seems to disappear into the roof. We also replaced the 27 original skylights with new skylights, the new skylights had all the bells and whistles, solar-powered, internal, retractable shades, and electric venting, all controlled from a cell phone.