What to Do If Your Roof Is Leaking or Missing Shingles
What Causes Roof Damage Most Often in Alberta
Wind and Storm
Strong winds can lift shingles, especially along roof edges and ridgelines. Once lifted, shingles may tear off completely, exposing the underlying structure. This type of issue often happens suddenly and without warning.Hail
Hailstorms are a frequent concern in Alberta. Even small hailstones can dislodge protective granules on shingles, weakening their durability. Larger impacts may crack or puncture materials, creating entry points for moisture.Freeze-Thaw Cycles
Temperature fluctuations cause water to freeze and expand inside small cracks. Over time, this repeated expansion weakens roofing materials and creates pathways for leaks.Ice Dams
In winter, melting snow refreezes at the roof edges, forming ice dams. Water becomes trapped behind these barriers and is forced under shingles, leading to hidden damage.Installation Issues
Improper installation – such as poor sealing or incorrect shingle placement – can significantly reduce the lifespan of a roof and increase vulnerability to environmental stress.These factors often work together, meaning damage may develop gradually before becoming visible.Can Missing Shingles Cause a Leak?
Yes – and often much faster than expected.Shingles serve as the outer protective layer of your roof. When they are missing, the materials underneath – primarily the underlayment – are exposed to the elements.What Happens After Shingles Are Lost
- Within hours: Rainwater can begin penetrating exposed areas
- Within 24–48 hours: Moisture reaches the roof decking
- Within a few days: Insulation absorbs water, and interior signs may appear
Why This Matters
Underlayment is not designed for prolonged exposure. It provides temporary resistance, but once saturated, it allows water to pass through more easily.That means even a small section of missing shingles can quickly lead to a leak – especially during repeated rainfall or snowmelt.The faster the issue is addressed, the lower the risk of deeper structural damage.What to Do If Your Roof Starts Leaking
Step 1: Stay Safe
- Avoid climbing onto the roof during active weather
- Be cautious of wet surfaces and electrical hazards
- If water is near electrical fixtures, turn off power in that area
Step 2: Contain the Water Inside
- Place buckets or containers under leaks
- Move valuables away from affected areas
- Use towels to limit water spread
Step 3: Relieve Pressure (If Needed)
If water is pooling behind drywall, carefully puncturing a small hole can release pressure and prevent larger ceiling collapse.Step 4: Apply Temporary Protection
- Use a tarp if accessible and safe
- Seal small visible gaps from inside if possible
Step 5: Assess and Monitor
Once conditions are safe, evaluate the visible damage and monitor for changes.Step 6: Know When to Call a Professional
If the leak persists, worsens, or is linked to storm damage, it’s time to seek professional help. Early intervention significantly reduces repair complexity.How Fast Roof Damage Gets Worse
Within Hours
- Water begins entering through exposed areas
- Initial saturation of surface materials
Within Days
- Insulation becomes wet and loses effectiveness
- Moisture spreads laterally across the structure
- Stains appear on ceilings and walls
Within Weeks
- Mold growth begins in damp, enclosed spaces
- Wooden structures weaken and may start to rot
- Repair scope expands significantly
Temporary Fixes vs Long-Term Solutions
Temporary Fixes
- Tarping exposed sections
- Applying sealants to visible cracks
- Using interior patches to control water flow
Limitations
- They do not address underlying damage
- Water may still enter through hidden points
- Materials continue to degrade beneath the surface
DIY Risks
- Safety hazards when accessing the roof
- Incorrect repairs that worsen the problem
- Missed hidden damage
When Roof Damage Can Be Repaired (And When It Cannot)
When Repair Is Possible
- Damage is localized
- Only a few shingles are affected
- Leak is recent and contained
- Structure remains intact
When Replacement May Be Needed
- Damage is widespread
- Structural components are compromised
- Multiple leaks are present
- Roof is aging and nearing end of life
Should You Get a Roof Inspection After Damage?
A professional inspection helps identify hidden damage, assess structural integrity, and determine the right next steps.If you’re unsure about the condition of your roof, it’s best to schedule an inspection.Frequently Asked Questions
Can missing shingles cause leaks?
Yes. Missing shingles expose underlying materials, allowing water to enter quickly.How urgent is a roof leak?
Very urgent. Even small leaks can escalate within days.Can I fix roof damage myself?
Temporary fixes are possible, but professional assessment is recommended.What happens if I wait?
Delaying increases the risk of structural damage and higher repair costs.When to Call a Roofing Professional
- The leak continues after temporary fixes
- Multiple shingles are missing
- Damage followed a storm or hail event
- Interior signs are worsening


