UPDATED FOR 2025
GAF Timberline HDZ vs. Owens Corning Duration: Which Architectural Shingle Is Best for Your Long Island Home?
GAF Timberline HDZ vs Owens Corning Duration comparison for Long Island homes. Expert analysis of LayerLock vs SureNail, warranties, pricing, and which shingle performs best in Nassau and Suffolk County weather.
Key Takeaways:
- Both shingles deliver exceptional quality. GAF Timberline HDZ and Owens Corning Duration represent each manufacturer’s flagship architectural shingle line. You’re comparing two excellent products, not choosing between good and bad.
- LayerLock vs. SureNail defines the core difference. GAF’s LayerLock Technology and Owens Corning’s SureNail Technology approach wind resistance differently. Understanding these systems helps you evaluate which engineering philosophy works best for Long Island’s nor’easters.
- Algae protection warranties differ significantly. GAF offers 25-year StainGuard Plus coverage while Owens Corning provides 10-year StreakGuard protection. In Long Island’s humid climate, this difference matters.
- Wind resistance ratings are comparable but not identical. Both achieve excellent wind performance when properly installed, but specific ratings and upgrade options vary. Nassau and Suffolk County’s exposure to coastal storms makes wind resistance critical.
- Warranty structures favor different scenarios. GAF and Owens Corning structure their limited lifetime warranties differently. Understanding coverage details prevents surprises years after installation.
- Owens Corning Duration shingles are available in a wide selection of popular colors to enhance curb appeal. Homeowners can choose from many shades, with popular colors designed to complement different home styles.
- Pricing typically falls within 5-10% of each other. Neither shingle consistently costs significantly more. Your final price depends more on contractor relationships with manufacturers and local market conditions.
Choosing between GAF Timberline HDZ and Owens Corning Duration represents one of the most common decisions Long Island homeowners face during roof replacement.
Both architectural shingles dominate the residential roofing market, offering proven performance and strong warranties.
But which shingle delivers better value for Nassau County, Suffolk County, and NYC homes? The answer depends on your specific priorities—wind resistance, algae protection, installation technology, warranty coverage, and budget all play critical roles.
This comprehensive comparison examines every technical specification, performance feature, and cost consideration. You’ll understand exactly how these industry-leading shingles stack up and which one best protects your Long Island investment.
GAF Timberline HDZ shingles are also known for their dimensional appearance, designed to mimic the look of wood shakes. Their wood-shake look and shadow line technology create a more textured, visually appealing roof.
Understanding Architectural Shingles: Why These Two Dominate Long Island
Architectural shingles—also called dimensional or laminate shingles—represent the residential roofing industry standard.
Before comparing GAF and Owens Corning specifically, understanding what makes architectural shingles superior to basic three-tab options helps frame this decision.
Their multi-layer construction creates depth and shadow lines while providing superior performance compared to basic three-tab shingles.
GAF Timberline HDZ and Owens Corning Duration exemplify why architectural shingles dominate Long Island installations. Both weigh significantly more than three-tab alternatives (235-250 lbs per square versus 150-175 lbs), providing enhanced wind resistance and impact protection.
Their dimensional profiles complement Long Island’s diverse architectural styles. Many architectural shingles, including Timberline HDZ, are designed to replicate the natural look and texture of wood shakes, and timeless shingle colors are a reliable way to ensure your home looks elegant despite changing trends.
From classic Colonials in Garden City to modern contemporaries in Port Washington, these shingles enhance curb appeal while delivering proven protection.
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GAF Timberline HDZ: Advanced Technology Meets Proven Performance
GAF Timberline HDZ represents decades of engineering evolution in architectural shingles. Understanding its core technologies explains why this product dominates residential roofing across Long Island and nationwide.
The Timberline UHDZ variant features Dual Shadow Line technology, creating two parallel shadow lines for an ultra-dimensional wood-shake appearance. GAF shingles are designed to beautify homes while providing protection.
LayerLock Technology: GAF’s Wind Resistance Innovation
LayerLock represents GAF’s most significant technological advancement in architectural shingles. This mechanical locking system uses a unique pattern of grooves on each shingle’s back surface.
These grooves lock into the granular surface of shingles below, creating mechanical resistance against wind uplift. Unlike adhesive-only systems, LayerLock provides immediate wind protection—it doesn’t require thermal activation from sun exposure.
This matters during Long Island’s unpredictable weather. A roof installed in October might face a nor’easter before sufficient thermal cycling activates traditional adhesives. LayerLock works from day one.
Wind Resistance Performance
Timberline HDZ achieves 130 mph wind resistance when installed according to GAF specifications. This rating requires proper nailing through the StrikeZone nailing area and use of GAF Starter Strip Plus.
For Nassau County, Suffolk County, and NYC homes, this 130 mph rating provides substantial protection. Most Long Island nor’easters generate sustained winds of 40-60 mph with gusts to 70-80 mph. Timberline HDZ’s engineering handles these conditions with significant margin.
StrikeZone Nailing Area: Installation Precision
GAF engineered Timberline HDZ with a nailing area 99.9% larger than standard architectural shingles. This massive target zone helps installers achieve proper nail placement consistently.
Why does this matter? Improperly placed nails represent the leading cause of premature shingle failure. Too high and the nail misses critical bonding areas. Too low and it penetrates the visible portion of the shingle below.
StrikeZone’s width makes proper installation significantly easier, even for less experienced crews. However, County Roofing Systems’ installers—with 35+ years experience—deliver perfect nail placement regardless of shingle brand.
StainGuard Plus: 25-Year Algae Protection
Long Island’s coastal humidity creates perfect conditions for blue-green algae growth. Those unsightly black streaks visible on aging roofs signal active algae colonies feeding on limestone filler in shingles.
StainGuard Plus technology incorporates algae-resistant copper granules that continuously release copper ions for 25 years. This warranty period significantly exceeds industry standards.
The visual and financial benefits are substantial. Algae-stained roofs reduce curb appeal and property values. StainGuard Plus maintains your roof’s appearance while extending its functional lifespan.
Timberline HDZ Technical Specifications
- Weight: 240 lbs per square (100 sq ft)
- Warranty: Limited Lifetime transferable
- Wind Resistance: Up to 130 mph (with proper installation and starter strips)
- Algae Protection: 25-year StainGuard Plus warranty
- Impact Resistance: Class 3 standard (Class 4 available with ArmorShield II upgrade). While Timberline HDZ shingles offer solid impact resistance, there are limitations regarding protection from hail damage.
- Fire Rating: Class A
- Colors Available: 17 color options including popular TruDefinition Duration colors
GAF is generally more affordable initially, while Owens Corning may provide better long-term value due to its premium features.
Owens Corning Duration: SureNail Technology and Proven Reliability
Owens Corning Duration has earned its reputation through revolutionary engineering and consistent performance. The technologies integrated into Duration address specific failure modes common in architectural shingles.
SureNail Technology: Revolutionary Nail Pull-Through Resistance
Owens Corning Duration features SureNail Technology—a woven fabric strip integrated into the nailing area. SureNail Technology includes a clear nailing zone, which ensures consistent installation and outstanding gripping power. This fabric provides 2.5 times better nail pull-through resistance compared to standard shingles.
The engineering addresses a critical failure mode. High winds don’t typically blow shingles off completely. Instead, wind pressure lifts shingles gradually, pulling nails through the material over time.
SureNail’s woven fabric distributes forces across a larger area, dramatically reducing this pull-through failure. The technology works particularly well during sustained wind events—exactly what Long Island experiences during nor’easters.
Wind Resistance Performance
Duration shingles achieve 130 mph limited wind warranty when installed as part of the Owens Corning Total Protection Roofing System. This requires Duration starter strips, hip and ridge cap shingles, and proper underlayment.
The system approach ensures every component works together protecting your home. County Roofing Systems installs complete roofing systems, not just shingles, maximizing your warranty coverage and real-world performance.
TruDefinition Duration Color Technology
Owens Corning’s color palette utilizes multiple granule blends creating exceptional depth and dimension. Their TruDefinition Duration colors feature high-definition contrasts that remain vibrant through decades of UV exposure. Duration shingles feature high contrast, monochromatic hues in a wide range of colors, including lighter shades that reflect more solar energy and darker shades that create visual contrast.
Homeowners can use virtual tools to upload a picture of their home to visualize different shingle colors and styles before making a decision. Owens Corning TruDefinition Duration Designer Shingles are available in distinctive colors that complement diverse home styles.
The color options complement Long Island’s architectural diversity. From classic earth tones matching traditional Colonials to bold designer colors for contemporary homes, Duration offers choices for every aesthetic preference.
Popular Long Island selections include Onyx Black, Estate Gray, Driftwood, and Aged Cedar. These colors coordinate beautifully with brick, stone, and siding common across Nassau and Suffolk County homes.
StreakGuard Protection: 10-Year Algae Warranty
Duration shingles incorporate StreakGuard algae resistance through copper-containing granules. This technology inhibits blue-green algae growth preventing those unsightly black streaks.
The warranty period is 10 years—shorter than GAF’s 25-year StainGuard Plus coverage. For Long Island’s humid coastal environment, this difference becomes significant over time.
However, 10 years of protection still substantially exceeds unprotected shingles. Many homeowners in coastal areas see algae staining within 3-5 years on standard products without algae resistance.
Owens Corning Duration Technical Specifications
- Weight: 250 lbs per square (100 sq ft)
- Warranty: Limited Lifetime transferable
- Wind Resistance: Up to 130 mph (with complete system installation)
- Algae Protection: 10-year StreakGuard warranty
- Impact Resistance: Class 3 standard (Class 4 available with Duration FLEX)
- Fire Rating: Class A
- Colors Available: 19 TruDefinition Duration colors including designer options
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Head-to-Head Comparison: Key Performance Factors
Now that you understand each product’s core technologies, comparing them directly reveals where meaningful differences exist.
Both GAF Timberline HDZ and Owens Corning Duration are engineered to protect your home from weather elements and damage, while also enhancing its aesthetic appeal. Some factors favor one product while others prove relatively equal.
Wind Resistance: LayerLock vs. SureNail Engineering
Both technologies deliver excellent wind resistance through different engineering approaches. LayerLock provides immediate mechanical resistance while SureNail focuses on preventing nail pull-through over time.
For Long Island applications, both perform exceptionally well. Our 35+ years installing both products across Nassau County, Suffolk County, and NYC proves both technologies withstand local nor’easters effectively.
The choice comes down to engineering philosophy preference rather than one being definitively superior. Both achieve 130 mph ratings with proper installation and complete system components.
Algae Protection: 25 Years vs. 10 Years
This represents the most significant performance difference between Timberline HDZ and Duration. GAF’s 25-year StainGuard Plus warranty provides 2.5 times longer coverage than Owens Corning’s 10-year StreakGuard protection.
In Long Island’s coastal humidity, this matters considerably. Homes near water in Hampton Bays, Port Washington, or Freeport face higher algae pressure than inland locations.
If your property has significant tree cover, faces north (limited sun exposure), or sits in humid microclimates, GAF’s extended algae protection delivers measurable value.
Installation Technology: StrikeZone vs. SureNail
StrikeZone makes proper nailing easier through its massive nailing target. SureNail prevents nail pull-through through integrated fabric reinforcement.
Both technologies improve installation outcomes but address different aspects. StrikeZone helps achieve proper nail placement. SureNail improves performance after nails are placed.
With County Roofing Systems’ certified installers, you benefit from both technologies fully. Our crews place nails perfectly regardless of target size and maximize pull-through resistance through proper fastening techniques.
Weight and Durability
Duration shingles weigh slightly more at 250 lbs per square versus Timberline HDZ’s 240 lbs per square. This 10 lb difference (4% heavier) provides marginally better impact resistance and dimensional stability.
However, this difference isn’t significant enough to drive decision-making. Both shingles fall within the standard architectural shingle weight range and perform similarly under Long Island’s snow loads, wind, and impact conditions.
Color Selection and Aesthetics
Owens Corning offers 19 TruDefinition Duration colors while GAF provides 17 Timberline HDZ options. Both palettes include traditional earth tones and modern designer colors.
Owens Corning Duration shingles are available in a variety of popular colors and styles, including Duration, Duration Designer, Duration MAX, and others, each offering unique performance characteristics.
The aesthetic differences are subtle. Both manufacturers offer high-quality color blends with excellent granule adhesion and UV resistance. Your choice depends on which specific color best complements your home’s exterior.
County Roofing Systems maintains sample boards showing both manufacturers’ complete color ranges. We’ll help you select the perfect shade matching your siding, brick, or stone.
Designer Shingles: Premium Options Beyond HDZ and Duration
For homeowners seeking to elevate their home’s curb appeal and long-term protection, designer shingles represent the pinnacle of roofing innovation.
Going beyond the trusted performance of Timberline HDZ and Owens Corning Duration, designer shingles offer a blend of advanced technology, striking aesthetics, and robust durability that can truly set your home apart.
Owens Corning shingles, along with other leading brands, provide a wide array of architectural shingles designed to meet the highest standards of style and performance.
These premium options are engineered not only for beauty but also for high performance in demanding climates like Long Island’s.
With features such as enhanced wind and hail resistance, algae resistance, and excellent fastener holding power—often thanks to innovations like SureNail Technology—designer shingles deliver a roofing system that stands up to the elements while maintaining its visual appeal year after year.
One of the standout benefits of designer shingles is the expanded palette of roof shingle colors and styles.
Whether you’re looking to complement a historic Colonial, a modern farmhouse, or a coastal retreat, there’s a designer shingle color and profile to match your vision.
The right shingle color can dramatically enhance curb appeal, creating a cohesive look that boosts your home’s value and makes a lasting impression.
Roofing contractors can help you navigate the many options, ensuring you select the right shingle to complement your home’s architecture and location.
Energy efficiency is another key advantage. Many designer shingles are rated by the Cool Roof Rating Council (CRRC) for their ability to reflect solar energy, helping to keep your home cooler in the summer and potentially lowering energy costs. This water-shedding roof design not only protects against leaks and water damage but also contributes to a more comfortable, energy-efficient living environment.
Warranty coverage is a major consideration when investing in a new roof. Designer shingles from industry leaders like Owens Corning often come with a limited lifetime warranty, providing homeowners with peace of mind and protection against manufacturing defects.
This comprehensive coverage, combined with the durability and performance of designer shingles, ensures your investment is protected for decades to come.
When installed by a qualified contractor, designer shingles offer long-lasting protection against wind, hail, algae, and other weather-related threats.
Their high-performance construction and advanced features make them an excellent choice for homeowners who want the best in both function and form. By working with an experienced roofing contractor, you can be confident that your new roof will be installed to the highest standards, maximizing the benefits of your chosen designer shingles.
Ultimately, designer shingles allow you to create a roof that not only protects your home but also enhances its beauty and value.
With a focus on quality, durability, and aesthetic appeal, these premium roofing shingles are an investment in your home’s future—delivering performance, protection, and style that truly stand the test of time.
Warranty Coverage: Understanding the Fine Print
Both manufacturers offer strong warranty programs, but the details matter significantly. The warranty for complete coverage is detailed in the actual warranty document, which provides comprehensive information on limitations and requirements. Understanding what’s actually covered—and what isn’t—prevents disappointment years after installation.
Owens Corning Duration shingles have a limited lifetime warranty, which covers manufacturing defects for as long as the homeowner owns the home. Owens Corning Duration® Series Shingles come with a limited lifetime warranty for manufacturing defects as long as the homeowner owns the home.
Limited Lifetime Coverage Explained
Both GAF and Owens Corning offer limited lifetime warranties on Timberline HDZ and Duration shingles. However, “limited lifetime” requires understanding.
These warranties cover manufacturing defects—problems with the shingle itself, not installation issues or normal wear. Coverage duration varies based on how long you own the home.
First 10-15 years: Full material replacement if defects occur Years 15+: Prorated coverage based on shingle age Transferability: Both warranties transfer to subsequent homeowners with reduced coverage periods
The reality? Manufacturing defects are rare with premium shingles from reputable manufacturers. Installation quality matters far more than warranty coverage for real-world performance.
Enhanced Warranty Options Through Certified Contractors
Both manufacturers offer enhanced warranty programs through certified contractors like County Roofing Systems. Certified contractors provide access to exclusive enhanced warranty options and benefits not available to non-certified installers. These enhanced warranties extend coverage and include workmanship guarantees.
GAF System Plus Warranty: Available through GAF certified contractors, covering both materials and installation workmanship for up to 10 years. Requires installation as complete GAF roofing system.
Owens Corning Platinum Protection: Available through Owens Corning Platinum Preferred contractors, covering materials and workmanship for up to 10 years with complete system installation.
County Roofing Systems qualifies for both enhanced warranty programs. We’ll explain which warranty best suits your situation during your free consultation.
Pricing Analysis: What Long Island Homeowners Actually Pay
Cost considerations significantly influence most roofing decisions. Understanding typical pricing for both materials and complete installations helps you budget appropriately.
Material Costs
GAF Timberline HDZ and Owens Corning Duration typically price within 5-10% of each other on Long Island. Exact pricing varies based on color selection, order volume, and contractor relationships with distributors.
For an average 2,000 square foot Long Island home (approximately 22-24 squares of shingles):
Materials only: $3,800-$4,400 for either product Complete installation: $9,500-$13,500 depending on roof complexity, tear-off requirements, and additional components
Premium colors may cost $50-100 more per square. Impact-resistant upgrades (ArmorShield II or Duration FLEX) add $800-1,200 for typical homes.
Value Proposition: Which Delivers Better ROI?
Return on investment depends on your priorities:
Choose GAF Timberline HDZ if:
Extended algae protection is priority (25-year StainGuard Plus)
Your home has significant tree cover or faces north
You prefer GAF’s LayerLock immediate wind resistance
You want the widest installer nailing target (StrikeZone)
Specific GAF colors match your home perfectly
Choose Owens Corning Duration if:
SureNail’s pull-through resistance appeals to you
You prefer Owens Corning’s TruDefinition color options
Your contractor has stronger Owens Corning relationships (better pricing)
You want slightly heavier shingles (250 vs 240 lbs)
You’re comfortable with 10-year algae protection
Both shingles deliver excellent long-term value. Your choice comes down to specific feature preferences rather than one being clearly superior financially.
Long Island Climate Considerations: Which Performs Better?
Local weather patterns create specific demands on roofing materials. Evaluating how each shingle handles Long Island’s unique climate challenges reveals practical performance differences.
Nor’easter Wind Resistance
Both shingles handle Long Island nor’easters excellently when properly installed. The 130 mph wind ratings significantly exceed typical storm conditions.
However, proper installation determines real-world performance more than which shingle you choose. County Roofing Systems’ certified installation ensures maximum wind resistance regardless of manufacturer.
We incorporate proper starter strips, adequate fastening, correct underlayment, and quality ridge cap shingles. This complete system approach delivers proven nor’easter protection.
Coastal Humidity and Algae Growth
GAF Timberline HDZ’s 25-year StainGuard Plus warranty provides distinct advantages in Long Island’s coastal humidity. Areas near water—South Shore communities, North Shore waterfront properties, or homes near Long Island Sound—benefit from extended algae protection.
Owens Corning Duration’s 10-year StreakGuard coverage still exceeds unprotected shingles substantially. For inland Nassau County homes with southern exposure and limited tree cover, 10-year protection often proves sufficient.
Temperature Extremes and UV Exposure
Both shingles incorporate UV-blocking technology protecting against Long Island’s intense summer sun. Both maintain color vibrancy and resist thermal degradation through decades of exposure.
Neither shingle demonstrates superior UV resistance based on our 35+ years installing both products. Long Island’s summer solar intensity affects both manufacturers’ products similarly.
Snow Loads and Ice Dams
Duration’s slightly heavier weight (250 vs 240 lbs per square) provides marginally better performance under heavy snow loads. However, this difference is minimal.
Ice dam prevention depends more on proper attic ventilation and adequate insulation than shingle selection. County Roofing Systems addresses ventilation systematically, preventing ice dams regardless of which shingle you choose.
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Installation Requirements: Why Certified Contractors Matter
Premium shingles only perform as engineered when installed correctly.
Understanding why professional installation matters protects your investment and ensures warranty validity.
The Premium Shingles Trap
Here’s what shingle manufacturers don’t advertise prominently:
Premium shingles fail spectacularly when improperly installed.
LayerLock technology only works if shingles are positioned correctly with proper offset. SureNail provides no benefit if nails miss the reinforced fabric strip. StainGuard Plus and StreakGuard can’t prevent algae if water pools from improper drainage.
Many homeowners focus exclusively on shingle selection while ignoring installation quality. This represents backwards thinking.
A perfectly installed Duration roof outperforms a poorly installed Timberline HDZ roof every time—and vice versa.
County Roofing Systems’ Dual Certification Advantage
We hold elite certifications from both GAF and Owens Corning:
GAF Certified Contractor: Completed comprehensive training on GAF installation techniques, product specifications, and warranty requirements. Authorized to offer enhanced GAF System Plus warranties.
Owens Corning Roofing Platinum Preferred Contractor: Represents Owens Corning’s highest contractor tier, requiring proven installation excellence, customer satisfaction, and ongoing training. Authorized to offer Platinum Protection warranties.
This dual certification means you receive expert installation regardless of which manufacturer you choose. We’re not pushing one product to maximize our certification benefits—we genuinely install both products at the highest level.
What Professional Installation Includes
Our certified installation process for both Timberline HDZ and Duration includes:
- Complete tear-off of existing roofing materials down to roof deck
- Deck inspection and repair addressing any rot, damage, or structural concerns
- Proper underlayment installation (synthetic or premium felt depending on application)
- Ice and water shield protection at all vulnerable areas (eaves, valleys, penetrations)
- Manufacturer-specific starter strips (GAF Starter Strip Plus or Owens Corning starter strips)
- Correct shingle installation following manufacturer specifications for offset, nailing, and positioning
- Quality ridge cap shingles properly installed for wind resistance and aesthetics
- Proper ventilation ensuring adequate intake and exhaust airflow
- Complete cleanup using magnetic rollers to collect all nails and metal debris
- Final inspection verifying every detail meets our standards and manufacturer requirements
This systematic approach delivers the performance both manufacturers engineered into their products.
Making Your Decision: Timberline HDZ or Duration?
With all technical specifications and performance data reviewed, making your final choice becomes clearer. Consider these scenarios to determine which shingle best fits your specific situation.
When GAF Timberline HDZ Is the Better Choice
Algae protection is your priority. The 25-year StainGuard Plus warranty provides 2.5 times longer coverage than Duration’s StreakGuard. For homes with tree cover, north-facing roofs, or coastal exposure, this extended protection delivers real value.
You prefer immediate wind resistance. LayerLock’s mechanical locking provides wind protection from installation day one without requiring thermal activation.
You want GAF’s specific colors. If a particular Timberline HDZ color perfectly complements your home’s exterior, this drives your decision.
Your contractor relationship favors GAF. If your chosen contractor (like County Roofing Systems) offers better pricing on GAF products, the cost savings matter.
When Owens Corning Duration Is the Better Choice
Nail pull-through prevention appeals to you. SureNail’s 2.5x better pull-through resistance provides peace of mind during sustained wind events.
You prefer Duration’s color options. Owens Corning’s TruDefinition color palette includes shades unavailable from GAF.
Slightly heavier shingles matter to you. The 10 lb per square weight advantage (250 vs 240 lbs) provides marginal benefits for impact resistance and dimensional stability.
Your contractor relationship favors Owens Corning. Better pricing on Duration products through contractor relationships makes this the value choice.
The Honest Answer: Both Excel for Long Island Homes
After 35+ years installing both products across Nassau County, Suffolk County, and NYC, here’s our honest assessment: You can’t make a wrong choice between these two shingles.
Both deliver exceptional performance, proven durability, strong warranties, and excellent aesthetics. The technical differences—while real—don’t translate to one being clearly superior for Long Island applications.
Your decision should focus on:
- Which specific color best matches your home
- Whether 25-year vs. 10-year algae protection matters for your microclimate
- Which manufacturer your trusted contractor offers better pricing on
- Personal preference for LayerLock vs. SureNail engineering
Most importantly, choosing a certified contractor matters more than which shingle you select.
County Roofing Systems delivers expert installation of both products, ensuring you receive maximum performance regardless of manufacturer.
County Roofing Systems: Your GAF and Owens Corning Expert
Choosing the right contractor matters as much as selecting the right shingle.
Our certifications, experience, and systematic approach ensure you receive maximum value regardless of which manufacturer you choose.
Why We’re Qualified to Install Both Premium Shingles
Our dual certification from GAF and Owens Corning isn’t just paperwork—it represents decades of proven excellence:
- 35+ years serving Long Island with thousands of successful installations in Nassau County, Suffolk County, Queens, Brooklyn, Bronx, Manhattan, Staten Island, and Westchester County.
- GAF Certified Contractor status earned through comprehensive training, proven customer satisfaction, and ongoing education on GAF technologies and installation requirements.
- Owens Corning Roofing Platinum Preferred Contractor designation representing the top tier of Owens Corning installers nationwide. Less than 1% of contractors achieve this elite status.
- CertainTeed SELECT ShingleMaster certification proving our expertise extends beyond GAF and Owens Corning to all premium manufacturers. This places us in the top 1% of contractors nationwide.
Complete Roofing Systems, Not Just Shingles
We don’t just nail shingles to your roof. We engineer complete protection systems incorporating:
- Premium underlayment matched to your application (synthetic for superior performance or high-quality felt for budget-conscious projects)
- Grace Ice and Water Shield at all vulnerable areas preventing water infiltration at eaves, valleys, dormers, and penetrations
- Proper ventilation systems ensuring adequate intake (soffit vents) and exhaust (ridge vents) for optimal attic airflow
- Quality flashing around chimneys, skylights, walls, and all roof penetrations using industry-best materials and techniques
- Manufacturer-matched components using GAF accessories with Timberline HDZ or Owens Corning components with Duration to maximize warranty coverage
This systematic approach ensures every component works together delivering the performance manufacturers engineered into their products.
Our Warranty Protection Covers Installation and Materials
County Roofing Systems stands behind every installation with comprehensive warranty coverage:
- 25-year labor warranty covering our workmanship long after most contractors’ 1-2 year guarantees expire
- Enhanced manufacturer warranties through our GAF and Owens Corning certifications extending coverage beyond standard limited lifetime warranties
- 50-year material warranties from manufacturers when installed as complete roofing systems
- Immediate response if any issues arise—we’re here in 24-48 hours, not weeks or months
This comprehensive protection means you’re covered if anything goes wrong, whether it’s a manufacturing defect or installation concern.
Schedule Your Free Consultation and Roof Inspection
Making an informed decision requires seeing both products firsthand and understanding your specific roof’s requirements. We make this comparison process straightforward and pressure-free.
Ready to choose between GAF Timberline HDZ and Owens Corning Duration for your Long Island home?
County Roofing Systems provides free consultations including:
Complete roof inspection identifying any existing damage, wear, or concerns requiring attention
Detailed shingle comparison showing both Timberline HDZ and Duration color options with samples you can hold and compare
Honest recommendations based on your home’s specific requirements, your budget, and your priorities—we’re not pushing one product over the other
Detailed written estimates breaking down all costs for materials, labor, disposal, permits, and any additional components
Warranty explanation clarifying exactly what coverage you receive from manufacturers and our labor warranty
Financing options connecting you with lenders offering competitive rates for qualified homeowners
Timeline and scheduling setting clear expectations for project start, duration, and completion
Call County Roofing Systems Today
Phone: (888) 366-6619
We serve Nassau County, Suffolk County, Queens, Brooklyn, Bronx, Manhattan, Staten Island, and Westchester County with the same expertise and professionalism regardless of location.
Our team responds quickly, typically scheduling consultations within 48-72 hours. We work around your schedule, including evening and weekend appointments when needed.
Don’t trust your home to contractors without dual certification from premium manufacturers. Don’t accept installations that cut corners on underlayment, ventilation, or component quality. Don’t settle for contractors offering only 1-2 year labor warranties.
Choose County Roofing Systems for expert installation of either GAF Timberline HDZ or Owens Corning Duration. Your Long Island home deserves premium materials installed by certified professionals—that’s exactly what we deliver on every project.
Your roof protects everything you value. Trust it to Long Island’s most certified roofing contractor.
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- 0% financing
- No income check
- Up to 15 years
- Monthly payments as low as $149
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