BC's wet climate affects roof longevity differently than drier regions. Here is what you can realistically expect from each roofing material.
Lifespan by Material Type
- 3-tab asphalt shingles: 15-20 years
- Architectural asphalt shingles: 20-30 years
- Standing seam metal: 40-60 years
- Wood shakes: 15-25 years (less with heavy moisture)
- Concrete/clay tiles: 40-50 years
These lifespans assume proper installation and regular maintenance. Neglected roofs can fail in half the expected time.
Factors That Reduce Lifespan
- Poor ventilation causing moisture buildup
- Overhanging trees dropping debris
- Moss and algae left untreated
- Delayed repairs allowing water intrusion
- Improper initial installation
Extending Your Roof's Life
- Schedule professional inspections every 2-3 years
- Address repairs promptly
- Keep gutters clean and flowing
- Treat moss before it takes hold
- Ensure adequate attic ventilation
Regular maintenance can extend your roof's life by 20-30%. The investment pays for itself many times over.