Full Roof Replacement Cost in Montreal

A full roof replacement encompasses everything involved in removing the existing roofing system and installing a new one. The total cost is determined by the roof size, pitch and complexity, the material selected, the condition of the underlying structure, and the accessibility of the building. The process begins with removing the existing roofing material down to the deck. This tear-off reveals the condition of the plywood or OSB sheathing, allowing any damaged sections to be replaced. It also provides the opportunity to inspect the roof structure for signs of moisture damage, rot, or structural issues that should be addressed before new roofing is installed. Once the deck is sound, a waterproof underlayment is applied. Ice and water shield membrane is required along eaves, in valleys, and around penetrations to protect against water infiltration from ice dams and wind-driven rain. Synthetic underlayment covers the remaining roof surface. New drip edge, flashing, and ventilation components are installed before the roofing material itself. These components are critical to the performance and longevity of the system. Flashing around chimneys, skylights, plumbing vents, and wall-to-roof transitions must be properly stepped, sealed, and integrated with the roofing material. The roofing material is then installed according to manufacturer specifications. For shingles, this means proper nailing patterns, exposure, and alignment. For membrane systems, it means proper adhesion, seam welding, and detail work. Following manufacturer specifications is essential for warranty coverage. Finally, cleanup and inspection complete the project. All debris is removed from the property, and the finished roof is inspected to verify that all details are properly executed. [PRICING DATA TO BE RESEARCHED AND ADDED] Contact us for a comprehensive roofing assessment. We inspect your existing roof, explain your options, and provide a detailed estimate with no surprises.