What Causes Flat Roofs to Leak on Homes in the Outaouais Region
Cause 1: Failed Seams Seams are the most vulnerable point of any membrane system. If the torch weld was incomplete during installation, or if the seam has opened due to thermal cycling over time, water enters directly at the gap. Seam failure is particularly common at membrane terminations (edges) and at changes in direction on […]
How Long Does an Elastomeric Membrane Flat Roof Last in Gatineau?
The 35–40 year lifespan of an elastomeric membrane system assumes: a complete two-layer system with a granulated cap sheet, proper installation by certified torch welders, adequate drainage (no chronic ponding), correct flashing at all penetrations and perimeter walls, and periodic inspection to catch and repair minor issues before they propagate. Common Lifespan Reducers in Gatineau’s […]
What Is Elastomeric Membrane Roofing and Is It Good for Flat Roofs in Quebec?
Standard bitumen membranes become brittle in cold temperatures and can crack under freeze-thaw cycling. SBS (Styrene-Butadiene-Styrene) polymer modification gives elastomeric membranes their key property: they stretch and recover rather than crack. In Gatineau’s climate, where rooftop temperatures swing from -30°C in January to +60°C on a July rooftop, this elasticity is the difference between a […]
Which Roofing Companies in Gatineau Install Metal Roofs on Residential Homes?
In Quebec, all roofing contractors must hold an active RBQ (Régie du bâtiment du Québec) licence. You can verify any contractor’s licence at rbq.gouv.qc.ca. Beyond the mandatory licence, look for: BBB accreditation, established local history (5+ years in the Gatineau-Ottawa market), proof of liability insurance, and written estimates with itemized scope and warranty terms. Cossette […]
Does Metal Roofing Help Prevent Ice Dams on Homes in Gatineau or Ottawa?
Ice dams form when heat escaping through the attic warms the roof deck and melts snow. The meltwater runs down to the cold eaves, where it refreezes. As the ice builds, it traps subsequent meltwater, forcing it back under shingles and into the building. The result is water damage to ceilings, walls, insulation, and electrical […]
How Long Does a Metal Roof Last Compared to Shingles in the Outaouais?
Pre-painted galvanized steel roofing does not have a defined end-of-life under normal conditions. It doesn’t granulate, rot, absorb water, or crack under freeze-thaw stress. The factory-applied paint coating carries a 40-year fade and chalk warranty on quality products. Structurally, a properly installed metal roof in Gatineau or Ottawa will remain functional for 70+ years, well […]
What Are the Pros and Cons of Metal Roofing in Quebec’s Winter Climate?
Metal roofing was the dominant roofing material in rural Quebec for generations, for good reason. Pre-painted galvanized steel performs exceptionally well in the province’s freeze-thaw climate. Key advantages include: permanent lifespan with no replacement needed; natural snow shedding that reduces load and eliminates ice dams; no granule loss or UV degradation; full installation in any […]
Is Metal Roofing Worth the Cost for Homes in Ottawa and Gatineau?
A quality asphalt shingle roof in Gatineau costs roughly $10,000–$14,000 and lasts 25–35 years. Metal roofing costs $18,000–$28,000 and is permanent. Over 60 years, two shingle replacements at increasing costs total $25,000–$35,000+ — while one metal roof installation stays fixed. Factor in no maintenance costs and higher energy efficiency, and the financial case for metal […]
How Much Does Asphalt Shingle Roof Installation Cost in Gatineau, Quebec?
Roofing is priced per square (100 sq ft of roof surface). A standard Gatineau bungalow ranges from 15 to 25 squares of roof area. Key cost variables include roof size, pitch (steeper = more labour), the number of existing layers to remove, the condition of the roof deck, and the number of penetrations (chimneys, skylights, […]
What Roofing Material Handles Heavy Snow and Freeze-Thaw Cycles Best in Gatineau?
Gatineau averages over 230 cm of snowfall annually. Combined with the freeze-thaw cycles that can occur dozens of times per winter, roofing materials are subjected to enormous mechanical and thermal stress. The leading causes of premature roof failure in the Outaouais are ice dam infiltration, freeze-thaw membrane cracking, and snow load exceeding design capacity on […]