GAF Slateline Shingles
Classic Slate Elegance. Modern Roofing Intelligence.
The Slate Look Without the Slate Hassle
Few roofing materials capture the elegance of slate as well. Unfortunately, real slate can cost up to five times more, weigh hundreds of pounds per square, and require structural reinforcement.
GAF Slateline Designer Shingles change that, delivering the sophisticated look of natural slate at a fraction of the cost and weight, while providing the durability, flexibility, and warranty coverage only a modern asphalt system can offer.
Who You Hire Impacts Your Manufacturer's Warranty
Get 40 more years of warranty coverage when you hire a GAF Certified Master Elite installer for your new roof.
Uncertified Installer
Handyman or Contractor
10 Years Smart Choice Protection
No Labor Warranty
GAF Certified Installer
Roofing Contractor
50 Years Smart Choice Protection
10 Years Labor Warranty
GAF Master Elite Installer
The RoofAdvisor Advantage
50 Years Smart Choice Protection
30 Years GAF Labor Warranty
The RoofAdvisor Labor Warranty comes with all roof replacements performed by us, in addition to any manufacturer-provided labor warranties.
Why Homeowners Choose Slateline Designer Shingles
Timeless Slate Aesthetic
Deep, tapered cutouts and bold shadow lines mimic the dimensional texture of genuine slate tiles, giving your roof a handcrafted, high-end appearance.
Architectural Color Blends
Each shingle is crafted with multiple color tones and natural contrast to create depth and realism, perfect for traditional, colonial, or historic-style homes.
Lightweight & Easy to Install
Unlike real slate, Slateline installs on standard roof structures, no reinforcement or special framing required, making it both efficient and cost-effective.
Proven Protection
Wind warranty rated for up to 130 MPH winds, UL Class A fire resistance, and equipped with Dura Grip adhesive, these shingles stay secure through Michigan’s toughest storms.
Algae Resistance
Includes StainGuard Plus technology for up to 25 years of protection against blue-green algae streaks.
Lifetime Limited Warranty
When installed as part of a complete GAF Roofing System by RoofAdvisor, your roof is protected for life, with optional enhanced warranties exclusive to Master Elite installers.
The Complete GAF Roofing System Using Slateline Designer Shingles
Every RoofAdvisor Slateline roof is engineered as part of a complete GAF Roofing System, not a mix of parts. Each component plays a role in protecting your investment:
- Leak Barrier – GAF ice and water shield prevents leaks from ice dams and wind-driven rain.
- Roof Deck Protection – Adds a breathable layer that resists moisture buildup.
- Starter Strip Shingles – Secures edges and helps prevent shingle blow-offs.
- Slateline Designer Shingles – The signature layer that provides both style and durability.
- Roof Accessories – Keep your roof system dry, strong, and looking great.
- Attic Ventilation – Promotes air circulation to extend roof life and reduce energy costs.
- Ridge Cap Shingles – Completes the design and seals the system for long-term performance.
Together, these components form a cohesive system that qualifies your roof for GAF’s System Plus, Silver Pledge, or Golden Pledge warranties, available only through certified Master Elite contractors like RoofAdvisor.
Slateline Shingle Color Options In Michigan
Slateline Gallery
Images are sourced from GAF product galleries, not RoofAdvisor projects, and are provided for reference purposes only. To see examples of our work, visit our gallery page.
Other GAF Designer Shingles
Other GAF Shingles
Similar Shingles From Other Manufacturers
Who Is Designer Slateline Right For?
- Homeowners who want luxury curb appeal without luxury maintenance
- Historic and character homes needing architectural authenticity
- Property managers balancing premium aesthetics and long-term value
- Homeowners looking for a lasting, distinctive roof that complements classic architecture
RoofAdvisor Recommends
If you love the traditional elegance of slate but want a more practical, cost-effective roofing solution, GAF Slateline is an excellent choice. It’s especially ideal for historic Michigan neighborhoods and homeowners who want to stand out without overextending their budget.
For an even bolder luxury look, explore Camelot II Designer Shingles.
Specifications & Waranty
(All Dimensions Are Nominal)
- Pieces/Square 48
- Bundles/Square 3
- Nails/Square 288
- Exposure 7.5″
- Dimensions 17″ x 40″
- Fire – UL Listed to ANSI/UL 790 Class A
- Wind – ASTM D7158, Class H
- Wind – ASTM D3161, Class F
- National – ASTM D3018, Type 1
- National – ASTM D3462**
- National – Classified in accordance with ICC-ES AC438
- Regional – Miami-Dade County Product Control Approved***
- Regional – State of Florida Approved
- Regional – Texas Department of Insurance Listed
- Regional – ICC-ES ESR- 1475****
- Regional – ICC-ES ESR- 3267
- Regional – CSA A123.5******
- Passes UL 2218 Impact-Resistance Test with Class 3 Rating
**ASTM D3462 – Periodically tested by independent and internal labs to ensure compliance with ASTM D3462 at time of manufacture. Applies to only some plants that make Royal Sovereign® Shingles and Marquis WeatherMax® Shingles. Applies to White only for Royal Sovereign® Shingles.
***Miami-Dade County Product Control Approved – Applies to some plants only that make Timberline® UHDZ™ Shingles, Royal Sovereign® Shingles and Marquis WeatherMax® Shingles. Applies to White only for Royal Sovereign® Shingles.
****ICC-ES ESR- 1475 – Applies to some plants only that make Royal Sovereign® Shingles and Marquis WeatherMax® Shingles. Applies to White only for Royal Sovereign® Shingles.
******CSA A123.5 – Applies to some plants only that make Timberline HDZ®, Timberline® NS, and Timberline AS II®.
The RoofAdvisor Difference
RoofAdvisor’s Master Elite status means your warranty, workmanship, and installation quality are verified and backed by GAF, providing you with peace of mind long after the job is complete.
That means your roof is installed by a factory-certified team trained to meet GAF’s highest standards for craftsmanship, reliability, and professionalism.
This certification enables us to offer exclusive GAF warranties that most roofers cannot provide.
When you see the Master Elite badge you’re getting a roof built to last, certified at the highest level.
Flexible Roofing Financing Available
A new roof is a major investment, and timing matters. RoofAdvisor offers flexible financing options that let homeowners proceed with the right roofing system for their home without unnecessary financial strain.
Financing can help you spread the cost of your roof into manageable monthly payments while still receiving expert installation, full system protection, and manufacturer-backed warranties.
Certified Protection
Only 2% of roofing contractors in North America have earned the GAF Master Elite Certification, and RoofAdvisor is proud to be one of them.
- Access to GAF’s strongest warranties: Including System Plus, Silver Pledge, and Golden Pledge.
- Comprehensive workmanship coverage up to 25 years: Backed by GAF, not just the contractor.
- Full System Protection: When we install all six required GAF Roofing System components.
- Verified quality inspections and accountability: Through GAF’s national certification program.
- RoofAdvisor Labor Warranty: We proudly stand behind our work with an in-house labor warranty in addition to any labor warranty offered by GAF.
- Price Assurance Guarantee: If you hire us and find a cheaper estimate for the same materials and options, we will refund the difference plus $100 for your time.
Ready to Upgrade Your Roof With Slateline Shingles?
Bring timeless elegance and proven performance to your home with GAF Slateline Designer Shingles, installed by Michigan’s trusted GAF Master Elite roofing professionals.
How long do GAF Slateline shingles last?
With professional installation and proper ventilation, Slateline roofs can last 30–40 years under GAF’s Lifetime Limited Warranty.
Do they truly look like natural slate?
Yes. GAF uses precise cut patterns, deep shadow lines, and blended granule colors to replicate the depth and variation of real quarried slate.
Are Slateline shingles suitable for steep-slope roofs?
Absolutely. They’re ideal for steep slopes and accent roofs where visual impact matters most.
Can they handle Michigan’s winters and windstorms?
Yes, they’re rated for up to 130 MPH winds, with Dura Grip adhesive for added hold in extreme weather.
Do they come with algae protection?
Yes. StainGuard Plus™ provides 25 years of protection against algae discoloration on labeled bundles.
Does RoofAdvisor register my warranty?
Absolutely. We handle registration for every qualifying roof so your warranty is protected and verifiable through GAF.
How can I get a quote for Designer Slateline?
Schedule a free inspection today and mention the Slateline shingles when booking your appointment!
RoofAdvisor Services
Proudly Serving Property Owners in SE Michigan & Beyond
We’re proud to serve homeowners and businesses across Southeast and Mid-Michigan with dependable roofing solutions. Our team provides the same attention to detail and quality workmanship in every community we visit, whether you need a simple roof repair, a proactive roof inspection, or a complete replacement.
Cities we regularly work in
- Ann Arbor
- Brighton
- Canton
- Howell
- Lansing
- Livonia
- Novi
- Plymouth
- Rochester Hills
- Sterling Heights
- Troy
This map represents our residential service area. We now offer our multi-family roofing services to the entire state!
Counties We Serve
- Genesee
- Ingham
- Jackson
- Lapeer
- Livingston
- Macomb
- Monroe
- Oakland
- St. Clair
- Washtenaw
- Wayne