With 1,500mm+ of annual rainfall, the Fraser Valley demands roofing materials that can handle constant moisture exposure. Here is how the major options compare.
Top Performers for Wet Climates
- Standing seam metal - best overall for rain shedding
- Architectural asphalt shingles - good with proper installation
- Concrete/clay tiles - excellent but heavy
- Synthetic slate - lightweight and waterproof
Materials to Avoid
- Wood shakes without treatment - rot quickly
- Low-quality 3-tab shingles - short lifespan in moisture
- Exposed fastener metal - fasteners fail over time
Wood shake roofs in the Fraser Valley typically last only 15-20 years versus 30+ in drier climates. Factor this into your decision.
Installation Matters Most
Even the best material fails with poor installation. In high-rain areas, proper underlayment, flashing details, and ventilation are critical. Always choose a contractor experienced with Fraser Valley conditions.
Ask potential contractors about their ice and water shield practices. In our climate, we extend this membrane further than code minimum for extra protection.