Repair and installation of slate roofing
Installing and repairing slate requires a hand trained in stonework: the nailing, the flashing, the load on the structure. This is what we do on Montreal roofs.
Free, no-obligation estimate
Why choose Urgence Toiture Montréal
for slate roof repair and installation
Everything you need to know about slate roofing
Slate is a natural stone extracted from quarries, then split into thin tiles about 5 mm thick. Each slate is hung from the roof by a copper or stainless steel nail, never forced into the stone: the nail head remains clear, otherwise the tile splits around the hole and the wind carries it away. This detail perfectly summarizes the material: a covering that lasts for generations when installed by trained roofers, and breaks quickly when it is not. In Montreal, it is mostly found on heritage buildings and residences in Westmount, Outremont, and the Plateau.
Genuine slate is stone, quarried and graded according to its expected lifespan. It is the choice for period buildings and roofs intended to last. Synthetic slate is made from minerals and composites, costs less, and weighs much less, making it compatible with structures that could not support stone. The appearance is similar; the longevity is not. Our roofers first look at what your structure can support before guiding you toward one or the other.
Slate absorbs almost no water, making it resistant to the freeze-thaw cycles that destroy more porous coverings in just a few winters. It does not warp in the sun, does not rot, and is fire-resistant. Its limit is not the climate, but the slope and weight: the Building Code requires a minimum slope of 1:2 for slate roofing, and the structure must be calculated for the load. A roof that is too flat or a structure that is too weak, and slate is not the right material, regardless of the character.
A slate roof is repaired tile by tile. A cracked slate, a failed nail, a corroded valley flashing: in most cases, a targeted intervention fixes the leak without touching the rest of the roof. Healthy tiles can even be removed, cleaned, and reinstalled during structural work. This is what makes annual maintenance pay off with this material: spotted early, a fragile area costs one visit; ignored, it ends in infiltration into the decking and a section overhaul.
Slate is repaired tile by tile, or not at all: it all depends on the hand that installs it. Ours has been doing it for years on Montreal's period roofs, in both genuine and synthetic, with RBQ license 5856-8684-01 in hand and an emergency line that answers at night. Request your estimate via the form—it's free.
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Why choose Emergency Roofing Montreal?
- Competitive and transparent pricing
- A professional team, trained to the latest standards
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Our roofing services: repair, replacement, and more
- Steep slopes: from 1:2, slate is eligible and this is where it lasts the longest, as water never stagnates on the stone
- Low-slope sections and flat roofs: stone is excluded, we switch to membrane. On a Montreal duplex, the two often coexist on the same building
Materials we install during a replacement:
Our approach: inspection first, intervention second
No two roofs age the same way: pitch, materials, and exposure all change the nature of the problem—and the solution. Our roofers first assess your exact setup to pinpoint the best-suited service. You receive a clear recommendation, tailored to your building and your budget.
For a free estimate, please fill out the online form. Response in less than 24 hours. Available 24/7 on the Island of Montreal and surrounding areas.
By choosing Urgence Toiture Montréal, you opt for an RBQ-certified team that guarantees reliable and lasting results.
Roof Replacement
An endless cycle of repairs often signals a deeper problem. At some point, roof replacement costs less than a series of temporary fixes. The chosen material takes into account your building and Montreal's climate, with installation compliant with RBQ standards at every step.
Roof Repair
The freezing and thawing of the Quebec winter weaken Montreal roofs, often without being visible at first glance. Blisters, peeling, cracks around penetrations: our roofers trace back to the real cause rather than patching the symptom. The roof repair is then carried out with materials chosen to last over time.
Roof Inspection
Identifying a fragile area before it becomes a structural problem is the whole point of an annual roof inspection. Our roofers examine the membrane, flashings, drains, and junctions. You then receive a detailed report to prioritize work according to your budget.
