LayerLock® Technology
Premium Series
Timberline HDZ®
Architectural Shingles
The iconic look you love, now with LayerLock® Technology + StainGuard Plus™ Algae Protection Limited Warranty1
EXPLORE ALL COLORS · 20+ Premium Finishes
Active Color:
—
EARTH & NATURAL HUES
COOL TONES & CLASSIC GRAYS
HARVEST & ACCENT COLLECTION
Limited Warranty Coverage — See GAF warranty for complete details. Screen color representation may vary by device.
LayerLock® Technology Premium Series
Timberline HDZ®
Architectural Shingles
The iconic look you love, now with LayerLock® Technology + StainGuard Plus™ Algae Protection
EXPLORE ALL COLORS · 20+ Premium Finishes
Active Color:
—
EARTH & NATURAL HUES
COOL TONES & CLASSIC GRAYS
Limited Warranty Coverage — See GAF warranty for complete details.
The Gold Standard in Everyday Roofing
What Are GAF Timberline HDZ® Shingles?
GAF Timberline HDZ shingles have earned their reputation as America’s best-selling architectural shingle — not through marketing, but through consistent, real-world performance. HDZ stands for High Definition, referring to the shingle’s layered, dimensional design that adds visual depth to any roofline. These are not entry-level shingles. They are a professionally engineered product that brings together wind resistance, algae protection, and long-term durability into one reliable package.
The Right Choice for Most Long Island Homes
Not every home needs the ultra-premium tier. For the vast majority of Long Island homeowners, whether in Levittown, Massapequa, Bay Shore, or Freeport, HDZ delivers everything needed: strong wind resistance, 30-year algae protection, and a lifetime limited warranty, all at a price point that makes sense. HDZ is where performance and practicality meet.
135+ Years of Roofing Leadership
What Are GAF Timberline HDZ® Shingles?
GAF has been manufacturing roofing products since 1886, making it one of the oldest and most established names in the industry. Headquartered in Parsippany, New Jersey, just miles from Long Island, GAF produces its shingles across multiple U.S. facilities under strict quality control standards. As North America’s largest roofing manufacturer, GAF’s scale allows them to invest heavily in product testing and innovation that smaller brands simply cannot match.
Complete Color Guide
Barkwood
Rich brown tones with warm amber undertones. Works exceptionally well with brick, stone, and earth-tone siding. Ideal for traditional colonial and craftsman-style homes.
Charcoal
One of the best-selling HDZ colors. Deep gray-black tones create dramatic curb appeal. A versatile choice that complements virtually any exterior color scheme.
Pewter Gray
A sophisticated mid-tone gray balancing light and dark elements. Pairs beautifully with white, blue, and green siding. Resists visible fading exceptionally well.
Shakewood
Replicates weathered cedar shake with brown, tan, and gray undertones. Perfect for mountain homes and lakeside properties seeking a rustic, natural charm.
Slate
Cool gray tones with subtle blue undertones. Mimics natural slate roofing for a premium look. Stands out on coastal properties and contemporary estates.
Weathered Wood
Soft gray and brown tones evoking sun-bleached driftwood. A timeless appeal that works across multiple architectural styles from colonial to farmhouse.
Hickory
Warm brown tones with golden highlights. A natural, rustic look that complements wood siding and stone accents beautifully.
Hunter Green
A bold, nature-inspired green that adds rich character. Ideal for homes surrounded by trees or those seeking a distinctive, standout exterior.
Mission Brown
Deep earthy brown tones that bring warmth and a grounded, classic look. Pairs well with cream and tan exteriors.
Biscayne Blue
A vibrant, unique color option for homeowners seeking something distinctive and coastal-inspired.
Appalachian Sky
A cool, calming blue-gray hue that works well in coastal and mountain settings.
Cedar Falls
A contemporary gray with cool undertones. Ideal for modern and transitional home designs.
Golden Harvest
A warm, inviting golden-brown tone that gives a sunny, welcoming appearance to any home.
Nantucket Morning
A soft, coastal-inspired color evoking morning light on the shore. Perfect for beach-area homes.
Revolutionary Adhesion System
LayerLock™ Technology
1
How the Bond Actually Works
Every HDZ shingle features precisely engineered adhesive strips that interlock with the layer above during installation. As the roof heats up under the sun, these strips activate and create a firm mechanical bond across the entire shingle surface, not just at the edges. The result is a roofing system that holds together as a unified structure rather than as individual pieces.
2
Standard Shingles Without LayerLock
Conventional shingles rely on basic asphalt sealant strips that activate inconsistently, especially in the cooler temperatures common during Long Island’s fall and spring roofing season. Partial activation leaves shingles vulnerable to wind uplift along their unsealed edges.
3
LayerLock Advantage
Full-surface mechanical bonding means every shingle is locked in place, even before the adhesive fully cures. This is particularly valuable on Long Island where roofs face strong northeast winds, coastal storms, and rapid temperature swings throughout the year.
4
Unlimited Wind Speed Warranty
HDZ shingles with LayerLock® are rated to handle winds up to 130 mph. When installed with qualifying GAF accessories, the WindProven™ warranty removes the speed cap entirely, giving Long Island homeowners protection with no upper limit.
Installation Precision
StrikeZone™ Nailing Tech
Nail to the mark, every time. Every HDZ shingle has a clearly marked nailing zone. No guessing. No measuring.
Up to 20% Faster
Reduced labor costs & project timelines
Faster Job, Lower Labor Cost
With a clear target on every shingle, experienced crews work significantly faster. For homeowners, this translates to shorter project timelines and potentially lower labor costs on a full roof replacement.
Fewer Mistakes, Longer Roof Life
Misplaced nails are one of the leading causes of premature roof failure. Nails driven too deep tear through the shingle mat. Nails set too shallow hold poorly under wind load. StrikeZone eliminates both problems by giving every installer, veteran or new, a precise target in any lighting condition.
- Prevents Over-driven nails (which tear material)
- Prevents Under-driven nails (weak holding power)
- Ensures consistent wind resistance across the roof
- Reduces callbacks related to wind damage
Complete Warranty & Tech Guide
Advanced technology and industry-leading coverage for peace of mind.
WindProven™ Warranty
The only roofing warranty with no maximum wind speed. When HDZ shingles are installed alongside required GAF accessories, your roof is covered against wind damage regardless of storm intensity.
LayerLock™ Tech
Goes beyond adhesive. The mechanical interlocking system holds shingle layers together structurally, delivering wind performance that adhesive-only systems cannot replicate.
StainGuard Plus PRO
Copper and zinc granules are built directly into each shingle. These minerals actively prevent algae colonization, keeping your roof clean and streak-free for 25 years, backed by a written warranty.
Dura Grip™ Sealant
A high-performance sealant that locks each shingle firmly to the roof deck. Even in sustained gale-force winds, DuraGrip keeps shingles from lifting at the edges where blow-off typically begins.
Technical Specifications
Engineering data and performance standards.
Physical Dimensions
Dimensions
13 1/4″ x 39 3/8″
Exposure
5 5/8″ (143 mm)
Bundles per Square
3 Bundles
Pieces per Square
64 Pieces
Nails per Square
256 Nails
Nails per Square
Approx. 60 lbs
Performance & Warranty
Shingle Type
Architectural Laminate
Wind Resistance
5 5/8″ (143 mm)
Fire Rating
Class A (Highest)
Algae Warranty
30 Years (StainGuard Plus)
Lifetime Warranty
Limited Lifetime
Key Technology
LayerLock® & StrikeZone™
Advertised vs. Real World
How Long Will It Last?
HDZ carries a Lifetime Limited Warranty, but actual performance life varies by climate and maintenance. Long Island homeowners can realistically expect 30–40 years of service life with proper installation and attic ventilation.
Proper attic ventilation is the single most important factor in extending shingle life. An overheated attic accelerates granule loss and shingle degradation from the underside, regardless of shingle quality.
When to Replace?
If your existing roof shows any of the following across 30% or more of its surface, replacement is more cost-effective than repair: heavy granule loss exposing the asphalt mat underneath, curling or cupped shingle edges, widespread cracking, or recurring leaks following storms.
FAQs
Helpful Answers For All Roofing Queries.
Q1: How do I know if my Nassau County home needs a roof replacement or just a repair?
If your roof is over 20 years old, has widespread shingle granule loss, multiple active leaks, or significant storm damage, a full replacement is usually the smarter long-term investment. Our team offers free inspections across Nassau County to give you an honest assessment.
Q2: How long does a residential roof replacement take in Nassau County?
Most residential roof replacements in Nassau County are completed within one to two days depending on roof size and complexity. Weather conditions and material availability can affect the timeline, but we always communicate the schedule clearly before work begins.
Q3: Does homeowner's insurance cover roof damage in Nassau County?
Many Nassau County homeowners can file insurance claims for storm, wind, or hail damage. We work alongside your insurance adjuster, provide full damage documentation, and guide you through the claims process to help maximize your approved coverage.
Q4: How much does residential roofing cost in Nassau County, NY?
Residential roofing costs in Nassau County vary based on roof size, pitch, material selected, and extent of any underlying damage. We provide free detailed estimates so you know exactly what to expect, with fair pricing and no surprise charges at project completion.
Is Timberline HDZ® the Right Shingle for Your Home?
For Long Island homeowners who want a proven, high-performing roof without paying a premium for features they may not need, Timberline HDZ® is the answer. It delivers the same core technologies as GAF’s ultra-premium line, a lifetime limited warranty, and one of the widest color selections in the industry, all at a price point that works for most families.
Recommended Next Steps
- Contact EZ Roofing to schedule a free roof assessment
- Request a detailed quote that includes all GAF system accessories
- Review color samples against your home's exterior in natural daylight
- Ask about GAF Master Elite® certification and what it means for your warranty coverage
