I had no idea what a process installing cedar shingles would be...Greg is the "master roofer". It is fascinating to watch this transformation. For every section he is working on, he lays a new layer of netting and roofing paper. For each row, he creates a plumb line to layer the shakes equally. It's like putting a puzzle together. He estimates this job will take him about a month. The section you see here was done in about four hours...as I said, it's a process!