Plan to attend “The Largest Roofing Expo presented by Roofing Contractors for the Roofing Industry” – the Western Roofing Expo 2018 – your once-a-year opportunity to maximize your company’s productivity, efficiency and profitability. Known for bringing all of the elements of the roofing industry together, the Western Roofing Expo focuses on the western region of the United States and the specific needs that roofing and waterproofing contractors face in these areas.