Not every roofing system survives an Alberta winter. This guide to new flat roofs in Edmonton compares the three most common commercial options: 2-ply SBS torch-on, TPO and EPDM rubber. Find out which system handles snow load, hail and extreme cold best, which one suits large warehouses, and why two-ply SBS is the most popular choice for Edmonton commercial buildings. Includes a simple comparison table covering typical lifespan, strengths and best uses, so you can choose the right roof for your building.