The visual centerpiece of Philip Johnson's Roofless Church in Indiana is a swooping dome that covers the altar. For the crew that tore off and replaced the original cedar roof last year, its unique shape gave new meaning to the expression "go with the flow."
The roofers beveled the edges of opposing shingles that met in the valley bottoms. As each course advanced on a rising curved line out of the valley, the shingle butts were angled to the left or the right as required; the angle decreased from the valleys to the peaks of the lobes. Exposures decreased from the bottom of the structure to the top.