Comprehensive Roof Replacement Services
When your roof has reached the end of its lifespan or sustained irreparable damage, a full roof replacement is often the most cost-effective and safest solution. At AJ Roofing, we specialize in providing durable and reliable roof replacement services.
Full Tear-Off vs. Layover: What's Right for You?
Choosing between a full tear-off and a layover (re-roof) is a critical decision. We'll help you understand the benefits of each:
Full Tear-Off
- Involves removing all existing roofing layers down to the deck.
- Allows for thorough inspection of the roof deck for damage or rot.
- Ensures a clean base for new materials, maximizing longevity and performance.
- Mandatory if two or more roofing layers already exist or if the deck is compromised.
- Complies fully with the latest Orland Park Building Code requirements.
Layover (Re-Roof)
- Involves installing a new layer of shingles directly over the existing one.
- Can be a more affordable and quicker option if the existing roof is in good condition and only has one layer.
- Not permitted if the roof deck has significant damage or multiple layers.
- May not be allowed under certain Orland Park Building Code regulations.
Our experts will conduct a thorough inspection to recommend the best and most code-compliant option for your home.
Premium Roofing Materials: GAF and Owens Corning
We are committed to using only the highest quality materials to ensure your new roof stands the test of time. We proudly partner with industry leaders:
GAF Roofing Systems
As a GAF Certified contractor, we offer their extensive range of high-performance shingles, including Timberline HDZ, known for their durability and aesthetic appeal. GAF's comprehensive warranty programs provide peace of mind.
Owens Corning Shingles
Owens Corning is synonymous with innovation and quality. Their TruDefinition® Duration® Shingles with SureNail® Technology offer superior wind resistance and a beautiful finish, backed by strong warranties.
All our installations with GAF and Owens Corning materials are performed to manufacturer specifications and exceed Orland Park Building Code standards, ensuring a safe and compliant new roof for your home.
More Than Just Shingles: The Anatomy of a Durable Roof
A high-performing roof is a complex system, with each component working in harmony to provide maximum protection and longevity. We meticulously install each layer to ensure your roof stands strong against the elements.
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Deck Inspection: The Foundation of Your Roof
Before any new materials are installed, we perform a thorough inspection of your roof deck. This critical step ensures a solid, stable foundation, identifying and repairing any rot or damage that could compromise the entire system.
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Ice & Water Shield: Essential for Orland Park Winters
Especially vital in our harsh Illinois winters, this self-adhering membrane is applied to vulnerable areas like eaves, valleys, and around penetrations. It creates an impenetrable barrier against ice dams and wind-driven rain, preventing leaks where they are most common.
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Synthetic Underlayment: The Advanced Moisture Barrier
Far superior to traditional felt paper, our high-quality synthetic underlayment provides an extra layer of protection against moisture penetration. It's durable, tear-resistant, and helps protect your roof deck during installation, ensuring a dry and secure foundation for your shingles.
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Starter Shingles: For Enhanced Wind Resistance
These specially designed shingles are installed along the eaves and rakes of your roof. They provide a strong, sealed edge that helps prevent shingle blow-off, significantly improving your roof's resistance to high winds.
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Quality Shingles: The Look and Primary Defense
We install premium GAF and Owens Corning architectural shingles, chosen not only for their beauty and curb appeal but also for their superior performance. They are your primary defense against rain, sun, and hail, available in a variety of styles and colors to enhance your home's exterior.
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Ridge Ventilation: For Optimal Attic Health
Proper attic ventilation is crucial for prolonging your roof's lifespan and improving your home's energy efficiency. Ridge vents allow hot, moist air to escape your attic, preventing heat buildup in summer and moisture accumulation in winter, which can lead to mold and premature shingle aging.
The AJ Roofing System
Our 6-Layer Protection System
- Deck Inspection: We ensure the foundation of your roof is solid.
- Ice & Water Shield: Crucial protection against Illinois winters.
- Synthetic Underlayment: A superior moisture barrier.
- Starter Shingles: For maximum wind resistance.
- Quality Shingles: The primary defense with great curb appeal.
- Ridge Ventilation: For a healthy, long-lasting attic.
2026 Illinois Roofing Cost Guide
| Roof Material | Illinois Market Share | Avg. Lifespan | Avg. Replacement Cost | Avg. Repair Cost |
|---|---|---|---|---|
| Architectural Asphalt | ~75% of homes | 20–30 Years | $9,000 – $16,500 | $450 – $1,200 |
| Designer / Luxury | ~10% of homes | 30–40 Years | $13,500 – $28,000 | $600 – $1,500 |
| Metal Roofing | ~8% of homes | 40–70 Years | $22,500 – $48,000 | $800 – $2,500 |
| Cedar Shake | ~5% of homes | 30–50 Years | $21,000 – $45,000 | $900 – $3,000 |
| Composite / Synthetic | ~2% of homes | 50+ Years | $22,000 – $44,000 | $500 – $1,800 |
Factors That Influence Your Quote
While the table provides a starting point, we build every quote based on your home's unique needs. Key factors include:
- Pitch & Complexity: Steeper or more complex rooflines require additional safety measures and time, influencing the final cost.
- Tear-Off vs. Layover: A full tear-off of existing layers is often required by Illinois code and ensures the best possible foundation for your new roof.
- Decking Condition: We inspect the underlying wood decking for rot or damage. Any necessary repairs are crucial for your new roof's integrity.
- Local Permits: We handle all municipal permit requirements, the costs of which vary by city.
- Attic Ventilation: We assess your attic's ventilation to ensure it meets code and will maximize the lifespan of your new shingles.