Natural slate and synthetic slate roofing installation, repair, and restoration for heritage and upscale residential properties in Greater Montreal.
Natural slate is the premier roofing material, valued for its beauty, longevity, and timeless aesthetic. Many of Montreal's finest heritage buildings, churches, and historic homes feature slate roofs that have performed for a century or longer. Slate is a natural stone product, quarried and split into thin tiles that are individually installed on the roof. When properly sourced and installed, a slate roof can last 75 to 150 years or more, making it the longest-lasting roofing material available.
Quebec has a strong tradition of slate roofing, and many older properties in neighborhoods like Westmount, Outremont, and the Plateau still feature their original slate. Our team has the specialized skills required for slate work, which differs significantly from standard roofing installation. Each slate tile is hand-selected, trimmed, and fastened with copper or stainless steel nails. The installation pattern, overlap, and headlap must be precise to ensure water shedding and prevent wind-driven rain from entering the roof system.
For heritage properties, we perform slate roof restoration that preserves the original character of the building. This involves carefully removing damaged or slipped slates, sourcing matching replacement tiles (from salvage yards or quarries that produce compatible stone), and reinstalling using traditional methods. We also inspect and repair the underlying flashing, valleys, and ridge details that are critical to the overall performance of a slate roof.
For new construction or re-roofing projects where the budget or structure does not support natural slate, we also install high-quality synthetic slate products. These engineered alternatives replicate the appearance of natural slate at a lower weight and cost, while still providing strong performance in Quebec conditions. Synthetic slate is manufactured from recycled materials in many cases and carries warranties that approach natural slate longevity.
Why this service
Natural slate can last 75 to 150 years
Unmatched aesthetic beauty and curb appeal
Heritage restoration expertise
Synthetic slate options for lighter weight and lower cost
Non-combustible natural stone material
Increases property value significantly
FAQ for this service
Natural slate roofs routinely last 75 to 100 years, and high-quality slate from certain quarries can exceed 150 years. The longevity depends on the quality of the stone, proper installation technique, and the condition of the supporting elements like flashing and fasteners.
Yes. Individual damaged or slipped slates can be replaced without disturbing the surrounding roof. We use a slate ripper tool to remove the damaged tile and install a replacement using a copper bib or hook method. Matching the color, thickness, and texture of existing slate requires experience and access to compatible materials.
High-quality synthetic slate products offer a convincing visual match to natural slate at a fraction of the weight. They are also less expensive and easier to install. Synthetic slate works well for new construction or situations where the roof structure cannot support the weight of natural stone.
Natural slate is heavy, typically weighing three to four times more than asphalt shingles per square foot. Many older Montreal homes were built with roof structures designed for slate, but modern construction may need reinforcement. We assess structural capacity before recommending natural slate installation.
Yes. Heritage slate roof restoration is one of our specialized services. We understand the requirements for working on designated heritage properties, including sourcing historically appropriate materials and following restoration guidelines that preserve the building's character.