Roofer in Rosemère

Roofs in Rosemère

Many Rosemère homes were built between the 1950s and the 1980s, often spacious houses on big lots with asphalt shingles or, less often, cedar shakes. Plenty have been expanded over the years, which creates joints between old and new rooflines where water can get in. There are also flat-roofed commercial buildings around Place Rosemère and the main roads.

Problems we run into in Rosemère homes

• Cedar shingles at the end of their life, split, cupped or covered in lichen, usually on the shadiest slopes.
• Additions whose roof butts up against a wall of the original house, with flashing trapped behind the siding that can't be replaced without opening the wall.
• Sunrooms and glass roofs added in the 1980s whose tie-in to the main roof has aged faster than everything else.
• Asphalt shingles laid directly over an old cedar roof, which leaves an uneven, poorly ventilated surface.
• Wide, low-pitch roofs where tree debris stays put instead of sliding off.

Additions and cedar shakes: two challenges typical of Rosemère

In Rosemère homes that have been extended over the decades, the weakest point of the roof is almost always the line where the addition's roof meets the original house. Depending on when the work was done, the flashing may be tucked under the siding, glued on with sealant or simply missing. During a re-roof we open the bottom of the siding along that wall to install new step flashing and a membrane that runs up behind it. It's more work, but it's what stops the leak for good.

With cedar roofs, the decision is usually between replacing in cedar, which keeps the character but needs regular upkeep, and switching to architectural asphalt shingles, which are easier to look after under big trees. Either way, we strip the old cedar down to the deck rather than covering it over. We put both options in writing, with what each really means for your house.

Winter in Rosemère

Under Rosemère's big trees, some slopes barely see the sun, which encourages moss and slows shingles from drying out. Gutters full of leaves in the fall turn into blocks of ice in winter and cause ice dams along the roof edge.

Neighbourhoods we cover

• Secteur du Golf
• Bord de la rivière des Mille Îles
• Secteur du chemin de la Grande-Côte
• Secteur de la gare
• Secteur de Place Rosemère