How to Recognize That Your Roof Is Aging
Even if your roof looks fine from the street, subtle warning signs may indicate your asphalt shingles are breaking down. Catching these signs early helps avoid costly water damage—and lets you plan your transition to a more durable roofing solution.
Common Warning Signs of Asphalt Shingle Aging
Curling or Cupping Edges
Edges that lift or curl signal drying and loss of flexibility in the shingle's core.
Buckling
Ripples or waves may indicate ventilation issues or movement in the decking below.
Faded or Discolored Shingles
Fading or discoloration suggests granule loss, reducing UV resistance and protection.
Cracking
Cracks across the surface or near sealant lines are signs of UV damage and aging.
Moss, Algae, or Lichen
Growth traps moisture and contributes to accelerated shingle deterioration.
Daylight in the Attic
Light entering the attic through the roof deck signals active damage or aging underlayment.
Granule Loss
Granules in gutters or bald spots on shingles reduce waterproofing and UV protection.
Blistering
Raised blisters indicate trapped heat or moisture beneath the asphalt surface.
Higher Energy Bills
A less efficient roof forces your HVAC system to work harder,raising utility costs.
Bald Spots
Large areas missing granules leave shingles exposed to water and wind damage.
Exposed Felt or Mat
Seeing the fiberglass mat means the top layer has fully worn off and the shingle is compromised.
What to Expect as Your Asphalt Roof Ages
While every roof is different, most asphalt shingles follow a predictable aging pattern influenced by:
- Climate exposure
- Installation quality
- Shingle grade
Here’s a general timeline of what you might notice over the years:
Shingle Aging Timeline:
Minor shedding is common as the shingle's surface settles. You may see a light dusting of granules in your gutters or downspouts especially after rainfall.
UV-exposed slopes (south-and west- facing) may showbare patches where granules have worn away. This reduces protection and accelerates wear.
Shingles may start curling or cracking as they dry out. In climates like Ontario with freeze-thaw cycles, signs often appear on the earlier end of this range.
Shingles become stiff, brittle, and start to cup. At this stage, your roof is likely past its reliable service life and vulnerable to failure.
Understanding Warranty Limits
While most asphalt shingles come with a 20–30-year warranty, these warranties often only cover manufacturer defects, not wear and tear. A shingle can be "in warranty" but still no longer perform effectively.
Wondering Where Your Roof Stands?
When shingles lose flexibility, granules, or structural integrity, rejuvenation or replacement becomes necessary. If you notice one or more of these signs, especially across multiple areas, it’s time for a Roof Health Check with Roof Revival And Metal Roofing Inc.
Call (613) 800-8003 or click Message Us to schedule your free inspection.