Quebec winters are among the most brutal in the world for buildings: freezing, thawing, snow accumulation, ice storms and violent winds test every exterior component of your home. An inspection and a few interventions in September-October can prevent costly damage that typically shows up in the dead of winter, when repairs are difficult and timelines are long.
Gutters: priority number one before winter
Gutters clogged with autumn leaves cause two major winter problems: ice dams and overflow damage during thaws. An ice dam forms when snowmelt water can't drain and freezes at the roof's edge, forcing water under the shingles. The consequences can be devastating.
- Clean gutters after the last leaves have fallen (November)
- Verify downspouts are clear and water flows away from the foundation
- Inspect joints and fasteners — freezing worsens existing weaknesses
- Consider installing gutter guards to permanently eliminate the problem
Roof: inspection before the first snowfall
A weakened roof bears the weight of snow poorly. Poorly secured shingles, lifted sections or damaged membranes become infiltration points at the first thaw. Inspect from the ground with binoculars or have a professional inspect before November.
- Replace missing or damaged shingles in the fall
- Check flashings around chimneys and vents
- Ensure attic ventilation is functional — it prevents ice dams
- Professional inspection recommended if roof is 15+ years old
Exterior siding: cracks to repair before the freeze
Water that seeps into a siding crack and freezes in winter exponentially worsens the crack. Inspect your siding in October and immediately caulk any cracks or lifting sections.
- Inspect caulking around windows, doors and electrical outlets
- Look for lifted, cracked or damaged siding panels
- Check the condition of corners and trim
- Caulk with a product rated for below-zero temperatures
Foundation and drainage: preventing spring water infiltration
Spring snowmelt infiltrating the foundation is often caused by poor winter drainage. Make sure downspouts are extended at least 1.5 meters away from the foundation and that the ground slopes away from the house.
Act now to avoid emergencies in January
Roof, gutter and siding problems identified in October can be resolved quickly and at reasonable cost. In January at -20°C, emergency interventions are more difficult, take longer and cost far more — if they're possible at all. Contact B&T Quality Construction for a free inspection before winter sets in.