GAF Certified Roofing Contractor
in Cincinnati & Northern Kentucky
GAF is the #1 shingle manufacturer in North America — and certification isn't optional. Only GAF Certified contractors can offer the full System Plus lifetime warranty. Your coverage depends on who installs it.
Why GAF Shingles Belong on Your Roof
GAF manufactures more roofing material than any other company in North America. That market leadership isn't marketing — it's the result of decades of engineering that homeowners can trust. When Great American Roofing installs a GAF roof, every component in the system is designed to work together, backed by one of the strongest warranties in the industry.
#1 Shingle Brand in North America
GAF has earned its position at the top through consistent innovation, rigorous quality control, and materials that perform in real-world conditions — from the heat of a Cincinnati summer to the ice and wind of a Northern Kentucky winter.
Timberline HDZ — Lifetime Shingles
The Timberline HDZ is GAF's flagship architectural shingle. It features a lifetime limited warranty, exceptional dimensional depth, and a proven track record on millions of roofs across North America. This is the benchmark everything else is measured against.
StainGuard Plus Algae Protection
Algae streaking is one of the most common complaints homeowners have about aging roofs. GAF's StainGuard Plus technology uses time-release copper microsites to resist the blue-green algae that cause those dark stains — keeping your roof looking clean for years longer.
LayerLock Technology
LayerLock is GAF's proprietary nailing technology that locks shingle layers together at the factory-set nailing zone, creating a tighter, more consistent installation. The result is a stronger bond, fewer callbacks, and a roof that performs closer to its rated specification.
WindProven — No Wind Speed Limit
Standard shingle warranties cap wind coverage at 130 mph. GAF's WindProven limited warranty — available with the Timberline HDZ and qualifying accessories — offers protection with no wind speed cap at all. That's the kind of confidence you want in Northern Kentucky and Southern Indiana, where storms can be severe.
System Plus Warranty — Certified Only
The GAF System Plus warranty — which covers both materials AND workmanship for the lifetime of the roof — is exclusively available through GAF Certified contractors. Homeowners who hire non-certified installers often unknowingly receive only the base shingle warranty, not the comprehensive System Plus coverage.
Why Your Installer's Certification Affects Your Warranty
Most homeowners assume their shingle warranty is automatic — that if GAF shingles are installed, the warranty follows. That's not how it works. GAF's premium warranty tiers, including the System Plus lifetime workmanship coverage, are only available when the shingles are installed by a GAF Certified contractor following GAF's installation requirements.
When a non-certified installer puts GAF shingles on your home, you may receive the base material warranty — but the installation warranty disappears entirely. If a leak develops and it's traced back to installation technique rather than a defective shingle, you're on your own. That's a risk most homeowners never realize they've taken until it's too late.
Great American Roofing is a GAF Certified installer. Every GAF roof we install qualifies for the full System Plus warranty — materials and workmanship, together, for the lifetime of the roof. We register every installation with GAF so there's no question about coverage when you need it.
GAF Certified — Every Installation Registered
As a GAF Certified contractor, Great American Roofing installs according to GAF's strict guidelines and registers every project directly with GAF. Homeowners receive the full System Plus warranty documentation at job completion — not a verbal promise, but a written warranty backed by the largest roofing manufacturer in North America.
GAF Shingle Options for Every Home
GAF manufactures a range of shingle lines to match different architectural styles, performance requirements, and budgets. Great American Roofing installs the full GAF product line across Greater Cincinnati, Northern Kentucky, and Southern Indiana — and can help homeowners select the right shingle for their home's style and their long-term goals.
Timberline HDZ — Flagship
The best-selling shingle in America. Timberline HDZ offers a lifetime limited warranty, LayerLock technology, StainGuard Plus algae protection, and WindProven no-speed-limit wind coverage when installed as a complete GAF system. This is the shingle most homeowners choose — and the one we most often recommend for its performance-to-value ratio.
Timberline CS — Cool Series
Built for homeowners focused on energy efficiency. The Timberline CS (Cool Series) uses specially formulated granules to reflect solar energy and reduce attic heat gain. It meets ENERGY STAR requirements and can contribute to lower cooling costs — a meaningful benefit in the Greater Cincinnati region's hot, humid summers.
Camelot II — Designer
GAF's premium designer shingle delivers the dimensional look of genuine slate or wood shake without the maintenance demands of natural materials. The Camelot II features staggered edge lines, deep shadow bands, and a large-format profile that makes an unmistakable statement on high-end homes, colonials, and traditional architecture.
Woodland — Shake Style
For homeowners who love the rustic character of wood shake but want the durability and fire rating of an asphalt product, the GAF Woodland delivers. Its hand-split texture, earthy colorways, and extra-thick profile create genuine curb appeal — without the rot, splitting, and fire risk of real cedar shake.
GAF Shingles — Frequently Asked Questions
Request Your Free GAF Roofing Estimate
Tell us about your project and we'll schedule a no-pressure inspection and written estimate — usually within 48 hours.
Or call us directly at (513) 886-5730 — Mon–Fri 8am–6pm, Sat 9am–3pm