Platinum Roofing replaced our old tar and gravel flat roof with new SBS roof above our office last year .We are very pleased with the workmanship and speed of install. Its March in Calgary and now our warehouse has spung many leaks .I called Mark and received an estimate for a repair and a replace to match office flat roof. I’m pleased to say that we will be working with Mark and his crews once again this season .I highly recommend Platinum Roofing as they truly are Calgary’s Flat Roof Specialist’s.