Curling or cracking is often caused by age, heat exposure, or poor attic ventilation. Improper installation can also lead to premature shingle failure. Once shingles begin to curl or crack, they lose their protective qualities and risk water damage. That’s when replacement becomes urgent. Small causes lead to big leaks. We address the root cause, not just the symptom.
L & L Roofing & Construction
3328 Litchfield Rd, Gainesville GA
(770) 874-0372 | LLroofs.com
You’re not imagining it. Some shingles do start to curl, lift, or split open over time.
So the real question is—
“What causes that kind of damage?”
and more importantly,
“Should I be concerned?”
At L&L Roofing & Construction, we’ve inspected thousands of roofs across Gainesville, Flowery Branch, and Oakwood.
Shingle curling or cracking is not normal wear—it’s a warning sign that something’s off.
Here’s why it happens and what to do about it.
Fast: What causes shingles to curl or crack?
🔍 1. Age and Weathering
Shingles naturally break down over time. UV rays, temperature swings, and weather slowly wear away the materials.
Signs of age-related wear:
- Edges curling upward
- Center cupping or blistering
- Granule loss exposing black asphalt
- Cracks forming across tabs
If your roof is 15–20 years old, these are signs it’s nearing the end of its lifespan.
💨 2. Improper Ventilation
Heat and moisture buildup in the attic can bake your shingles from underneath, causing:
- Premature curling
- Cracking due to trapped heat and humidity
- Mold and decking damage over time
We see this all the time in Georgia homes with poorly vented attics.
🔨 3. Improper Installation
Shingles must be:
- Nailed in the right place
- Laid flat with proper overlap
- Installed in appropriate weather conditions
If laid on crooked, misaligned, or laid during cold snaps, they may never seal properly—which leads to early curling and cracks.
🌧️ 4. Moisture or Ice Damage
Water can seep under shingles from:
- Ice dams in winter
- Wind-driven rain under lifted edges
- Leaks from roof penetrations or flashing
That moisture softens the material or freezes and expands, leading to:
- Edge curling
- Splitting or cracks near nail holes
📦 5. Low-Quality Shingle Material
Budget shingles often have:
- Less asphalt content
- Poor granule adhesion
- Shorter warranties and life span
They may start curling or cracking in as little as 5–7 years in harsh climates.
FAQs: Curling or Cracked Shingles
Q: Should I replace individual curled shingles?
A: You can, but curled or cracked shingles usually signal broader aging or ventilation issues. We recommend a full inspection first.
Q: Can ventilation really affect my shingles that much?
A: Absolutely. Poor airflow in the attic leads to roof system failure from the inside out. It’s one of the top causes of premature shingle damage.
Q: Can cracked shingles cause leaks?
A: Yes. Once a shingle cracks or lifts, it exposes the underlayment or decking. Even a small crack can let water in over time.
What To Do If You See Curling or Cracked Shingles
Call L&L Roofing for a free, honest roof inspection.
We’ll:
- Walk the roof safely
- Take photos of problem areas
- Check attic ventilation
- Tell you whether you need repairs, vent work, or a full replacement
And we’ll never sell you something you don’t need.
📞 Call (770) 874-0372 to book your inspection at LLroofs.com.
Serving Gainesville and all surrounding North Georgia communities.