Repair or Replace? How Calgary Homeowners Can Tell
The honest answer depends on three things: how old the roof is, how widespread the damage is, and whether the underlayment is still sound.
Age
Asphalt shingles in Calgary typically last 18–25 years. Past 20, a major repair is often money better spent on replacement.
Spread
Damage in one area is a repair. Damage across several slopes usually is not.