I had the shingles on my mansard roof replaced one year ago by Sears Canada. The roofers they used (RDF 2000) did a poor job and were extremely rude to boot. The shingles began falling off within 5 days of installation, caulking was either incomplete or they used far too much on the flashing, some shingles were held in place with 7 visible nails, the rows were crooked or improperly spaced. The inspector agreed that repairs were needed and the roofers have now returned at least 6 times. Still the job is not complete. The top row of shingle... read full review »