Choosing a new roof is one of the biggest decisions you can make for your home. It affects curb appeal, energy performance, storm protection, resale value, and long-term peace of mind. But once you start comparing roofing shingles, the options can feel overwhelming fast.

Two of the most trusted names in asphalt roofing are GAF and CertainTeed. Both manufacturers offer dependable roofing systems, strong warranty options, attractive color selections, and shingles built for different budgets and home styles. The real question is not simply, “Which brand is better?” The better question is, which shingle is right for your home, your budget, and the type of protection you want?

For Michigan homeowners, durability matters. Roofs need to handle snow, ice, wind, rain, temperature swings, algae growth, and the occasional severe storm. That is why understanding the differences between shingle types, impact ratings, algae protection, wind coverage, and design styles can help you make a much more confident decision.

Below, we will break down the major GAF and CertainTeed roofing shingle options, explain what the key features actually mean, and help you compare which products may be best for your home.

Quick Answer: Are GAF or CertainTeed Shingles More Durable?

Both GAF and CertainTeed manufacture durable asphalt shingles, but the best choice depends on the specific product line.

For homeowners focused on high-impact resistance, options like GAF Timberline AS II, GAF Timberline UHDZ with UltraMat, GAF Grand Sequoia AS, CertainTeed Landmark Premium, CertainTeed Grand Manor, CertainTeed Belmont, and CertainTeed Landmark ClimateFlex offer Class 4 impact-resistant products or product lines. GAF states that Timberline AS II uses SBS-modified asphalt and passes the UL 2218 Class 4 impact-resistance test, while CertainTeed describes Belmont and Grand Manor as UL 2218 Class 4 impact-resistant shingles.

For homeowners looking for a strong balance of price, appearance, and performance, GAF Timberline HDZ and CertainTeed Landmark or Landmark PRO are popular architectural shingle choices. CertainTeed describes Landmark and Landmark PRO as Class 3 impact-resistant shingles with algae resistance and Class A fire resistance, while GAF positions Timberline HDZ as its #1-selling shingle with algae protection, impact resistance, and wind warranty eligibility.

Understanding the Main Types of Roofing Shingles

Before comparing individual products, it helps to understand the major shingle categories.

1. 3-Tab Shingles

3-tab shingles are the most basic asphalt shingle style. They have a flatter, more uniform appearance and are usually chosen for budget-conscious roofing projects. GAF’s main 3-tab option is Royal Sovereign®, which GAF describes as America’s #1-selling 3-tab shingle and a cost-effective option with classic appearance and StainGuard algae protection.

2. Architectural Shingles

Architectural shingles, also called dimensional shingles or laminate shingles, are thicker and more dimensional than 3-tab shingles. They usually provide better curb appeal and stronger performance. GAF Timberline HDZ, Timberline UHDZ, Timberline NS, CertainTeed Landmark, and CertainTeed Landmark PRO all fall into this general category.

3. Designer Shingles

Designer shingles are made to create a more premium look. Some mimic slate, while others resemble wood shake. These shingles are often chosen when curb appeal is just as important as protection. Examples include GAF Camelot II, GAF Woodland, GAF Slateline, GAF Grand Sequoia AS, CertainTeed Grand Manor, and CertainTeed Belmont.

4. Impact-Resistant Shingles

Impact-resistant shingles are built to better withstand hail and storm debris. They are tested using the UL 2218 impact-resistance standard, with Class 4 being the highest impact rating. GAF explains that Class 4 testing involves dropping a 2-inch steel ball from 20 feet, and shingles must avoid structural cracks or ruptures to pass.

5. SBS-Modified Shingles

SBS-modified asphalt shingles use polymer-modified asphalt, which gives the shingles greater flexibility. This can help the shingle absorb impact and resist cracking. GAF Timberline AS II and Grand Sequoia AS use SBS-modified asphalt, while CertainTeed Landmark ClimateFlex uses polymer-modified asphalt for enhanced impact resistance and all-weather performance.

CertainTeed Roofing Shingles: Product Breakdown

CertainTeed is known for heavy, dimensional shingles with strong curb appeal and a wide selection of colors and styles. Many CertainTeed products include features such as StreakFighter® algae resistance, NailTrak® installation technology, Class A fire resistance, and transferable warranty coverage, depending on the product.

CertainTeed Landmark®

Best for: Homeowners who want a dependable architectural shingle with strong value.

CertainTeed Landmark is one of the brand’s most recognizable architectural shingles. It features a dual-layer construction that gives the roof greater dimension than a basic 3-tab shingle. CertainTeed describes Landmark shingles as UL 2218 Class 3 impact-resistant, Class A fire-resistant, and built with a fiberglass base for strength and longevity. Landmark shingles also include NailTrak® technology to help contractors install shingles accurately and StreakFighter® technology to help resist algae staining.

For many homeowners, Landmark is the “sweet spot” CertainTeed option. It gives you a dimensional look, solid durability, and better protection than a basic strip shingle without jumping into the highest luxury price range.

Key features:

• Architectural laminated design
• UL 2218 Class 3 impact resistance
• Class A fire resistance
• StreakFighter® algae resistance
• NailTrak® installation feature
• Wide color selection
• Strong value for residential roof replacement

Best color families to consider:

Gray, black, brown, red, green, blue, and weathered wood-style blends, depending on availability.

CertainTeed Landmark PRO®

Best for: Homeowners who want an upgraded architectural shingle with more depth, stronger warranty features, and a premium appearance.

Landmark PRO takes the core benefits of Landmark and adds a more premium look and feel. CertainTeed describes Landmark PRO as a premium roofing option with a multi-layer design, fiberglass base, protective outer layer, StreakFighter® algae resistance, Class A fire resistance, and UL 2218 Class 3 impact resistance. The product also includes a 30-year StreakFighter algae-resistance warranty and a wind-resistance warranty.

This is a great option for homeowners who want better curb appeal than a standard architectural shingle but do not necessarily want the cost of a full luxury designer shingle.

Key features:

• Premium architectural design
• UL 2218 Class 3 impact resistance
• Class A fire resistance
• StreakFighter® algae resistance
• 30-year algae-resistance warranty
• Lifetime limited transferable warranty
• 110 mph wind-resistance warranty, with upgrade options depending on the full system used

Best for Michigan homes because:

Landmark PRO offers a strong balance of durability, weight, style, and warranty protection, making it a smart choice for homeowners who want a roof that looks upgraded without going fully into luxury shingle pricing.

CertainTeed Grand Manor®

Best for: Homeowners who want a luxury slate-style appearance with high durability.

Grand Manor is one of CertainTeed’s premium designer shingles. It is designed to replicate the look of natural slate while still giving homeowners the practicality of asphalt shingles. CertainTeed describes Grand Manor as a UL 2218 Class 4 impact-resistant and algae-resistant shingle with Class A fire resistance, a heavy-weight build, and a broad random tab design that creates an authentic slate appearance.

Grand Manor is not the basic choice. It is the type of shingle you choose when your roof is a major part of your home’s architectural character. It works especially well on larger, historic, and luxury homes, as well as properties where curb appeal is a major priority.

Key features:

• Luxury designer shingle
• Natural slate-inspired appearance
• UL 2218 Class 4 impact resistance
• Class A fire resistance
• Algae resistance
• Heavy-weight construction
• Lifetime limited transferable warranty
• 30-year StreakFighter® algae-resistance warranty

Best for Michigan homes because:

Grand Manor offers premium storm resistance, standout curb appeal, and a thicker designer profile that can make a home look more refined and high-end.

CertainTeed Belmont®

Best for: Homeowners who want a slate-inspired designer shingle with Class 4 impact resistance.

Belmont is another premium CertainTeed designer shingle. It provides the look of slate with deep shadow lines and dimensional texture. CertainTeed describes Belmont shingles as UL 2218 Class 4 impact-resistant and algae-resistant, with Class A fire resistance and strong wind resistance.

Belmont is a strong option for homeowners who like the look of slate but want a roofing material that is easier and more practical to install than real slate.

Key features:

• Designer shingle
• Slate-inspired appearance
• UL 2218 Class 4 impact resistance
• Algae resistance
• Class A fire resistance
• Strong depth and dimension
• Premium curb appeal

Best for Michigan homes because:

Belmont gives homeowners the beauty of slate with high impact resistance, making it a strong choice for homes exposed to storms, falling branches, and seasonal weather changes.

CertainTeed Landmark ClimateFlex®

Best for: Homeowners who want enhanced impact resistance and greater flexibility in changing weather conditions.

Landmark ClimateFlex is worth mentioning because it directly addresses performance in variable climates. CertainTeed describes Landmark ClimateFlex as a UL 2218 Class 4 impact-resistant shingle made with polymer-modified asphalt. It is designed for enhanced hail resistance, better surface granule adhesion, and all-weather performance.

For Michigan, where roofing materials go through freeze-thaw cycles, cold temperatures, summer heat, storms, and snow loads, flexibility can be a major advantage.

Key features:

• Polymer-modified asphalt
• UL 2218 Class 4 impact resistance
• Enhanced granule adhesion
• All-weather performance
• Architectural appearance
• Strong option for storm-prone areas

GAF Roofing Shingles: Product Breakdown

GAF is one of the largest roofing manufacturers in North America and is especially known for the Timberline shingle family. GAF shingles often focus on complete roofing system performance, algae protection, LayerLock® Technology, WindProven™ warranty eligibility, and broad color availability.

GAF Royal Sovereign®

Best for: Budget-conscious homeowners who want a clean, traditional 3-tab roof.

Royal Sovereign is GAF’s main 3-tab shingle. GAF describes it as America’s #1-selling 3-tab shingle, offering a classic appearance at an affordable price. It also includes StainGuard protection against blue-green algae stains.

This is not the most dimensional or premium option, but it can make sense for certain homes, garages, rental properties, or projects where cost is the main factor.

Key features:

• 3-tab shingle design
• Traditional flat appearance
• Affordable price point
• StainGuard algae protection
• Good Housekeeping Seal
• Simple, clean curb appeal

Best for Michigan homes because:

Royal Sovereign can work well when budget is the priority, but many homeowners upgrading a primary residence may prefer architectural shingles for better dimension and stronger overall performance.

GAF Timberline HDZ®

Best for: Homeowners who want GAF’s popular architectural shingle with strong system protection.

Timberline HDZ is one of GAF’s flagship shingles. GAF describes Timberline HDZ as its #1-selling shingle, available in High Definition and Bold Definition color collections. It includes algae protection, impact resistance, and wind warranty eligibility depending on installation and system requirements.

One of the biggest features of Timberline HDZ is LayerLock® Technology, which helps mechanically fuse the common bond between overlapping shingle layers. When installed with qualifying GAF accessories, GAF shingles with LayerLock® Technology may qualify for the WindProven™ Limited Wind Warranty with no maximum wind speed limitation.

Key features:

• Architectural laminated shingle
• LayerLock® Technology
• WindProven™ Limited Wind Warranty eligibility
• Algae protection
• Strong color selection
• Popular balance of performance and value

Best for Michigan homes because:

Timberline HDZ is a strong all-around choice for homeowners who want a trusted architectural shingle with good curb appeal, system-based protection, and eligibility for wind warranty coverage.

GAF Timberline UHDZ® with UltraMat™

Best for: Homeowners who want GAF’s upgraded architectural shingle with deeper dimensions and Class 4 impact resistance. Timberline UHDZ with UltraMat is a premium upgrade within the Timberline family. GAF states that Timberline UHDZ shingles with UltraMat high-performance fiberglass mat technology achieve a UL 2218 Class 4 impact-resistance rating when sold in packages bearing the UltraMat logo and Class 4 classification statement. GAF also notes that Timberline UHDZ includes a Dual Shadow Line for added depth and qualifies for a 30-year StainGuard Plus PRO™ Limited Warranty against blue-green algae discoloration when sold in qualifying packages.

This shingle is a strong option for homeowners who like the popular Timberline look but want a more premium appearance and stronger impact rating.

Key features:

• Premium architectural shingle
• UltraMat™ high-performance fiberglass mat
• UL 2218 Class 4 impact resistance on qualifying packages
• Dual Shadow Line
• 30-year StainGuard Plus PRO™ algae protection on qualifying products
• WindProven™ warranty eligibility when installed with required accessories

Best for Michigan homes because:

Timberline UHDZ offers an excellent blend of curb appeal, algae protection, and impact resistance, making it a strong fit for homeowners who want to upgrade beyond a standard architectural shingle.

GAF Timberline NS®

Best for: Homeowners who want an architectural shingle look at a more practical price.

Timberline NS, or Natural Shadow, is designed to create a subtle architectural appearance with a classic shadow effect. GAF describes Timberline NS as a practically priced shingle that offers the look of classic architectural shingles with the warmth of wood.

This shingle is a good middle-ground option for homeowners who want something more attractive than 3-tab shingles but do not need the upgraded look or features of Timberline UHDZ.

Key features:

• Architectural appearance
• Natural shadow effect
• Budget-friendly Timberline option
• Algae protection where available
• Good Housekeeping Seal

Best for Michigan homes because:

Timberline NS can be a practical upgrade for homeowners who want a dimensional style without paying premium shingle prices.

GAF Timberline AS II®

Best for: Homeowners who want Class 4 impact resistance and SBS-modified asphalt performance.

Timberline AS II is one of GAF’s strongest storm-focused shingles. GAF describes Timberline AS II as a UL 2218 Class 4 impact-resistant shingle made with proprietary SBS-modified asphalt. This gives the shingle rubber-like flexibility and increased impact resistance. GAF also notes that Class 4 impact-resistant shingles may qualify for insurance discounts, though discounts are not guaranteed and depend on the insurance provider.

This is a smart option if your home is in an area where hail, storm damage, and severe weather are major concerns.

Key features:

• UL 2218 Class 4 impact resistance
• SBS-modified asphalt
• Rubber-like flexibility
• Enhanced resistance to cracking
• Strong granule adhesion
• 25-year StainGuard Plus™ algae protection on qualifying products

Best for Michigan homes because:

Michigan homes face a wide range of weather. Timberline AS II is a strong choice for homeowners who want added impact protection and flexibility through seasonal temperature swings.

GAF Camelot® II

Best for: Homeowners who want an affordable luxury shingle with a slate-like look.

Camelot II is part of GAF’s designer shingle lineup. GAF describes Camelot II as a slate-like shingle with artisan-crafted shapes, oversized tabs, dimensional design, and a specially formulated color palette. It is designed to deliver a premium look at a fraction of the cost of traditional slate or wood shakes.

Camelot II is a good fit for homeowners who want more architectural character than a standard shingle can provide.

Key features:

• Designer shingle
• Slate-like profile
• Oversized tabs
• Dimensional appearance
• 25-year StainGuard Plus™ algae protection on qualifying products
• More affordable than real slate or wood shake

GAF Woodland®

Best for: Homeowners who want a hand-cut European wood shake look.

Woodland shingles are made for homeowners who want a highly distinctive roof. GAF describes Woodland shingles as offering the look of hand-cut European shingles at a more affordable cost than traditional slate or wood shakes. They include artisan-crafted shapes, oversized tabs, dimensional design, and a custom color palette.

Key features:

• Designer shingle
• Hand-cut European appearance
• Dimensional design
• Custom color palette
• Good Housekeeping Seal
• Strong curb appeal

GAF Slateline®

Best for: Homeowners who want the look of slate without the cost of real slate.

Slateline shingles use bold shadow lines and tapered cut-outs to create the appearance of slate. GAF states that Slateline includes Time-Release Algae-Fighting Technology and offers a 25-year StainGuard Plus™ Algae Protection Limited Warranty against blue-green algae discoloration on qualifying products.

Key features:

• Designer shingle
• Slate-inspired appearance
• Bold shadow lines
• Tapered cut-outs
• 25-year StainGuard Plus™ algae protection on qualifying products
• More cost-effective than traditional slate

GAF Grand Sequoia® AS

Best for: Homeowners who want a rugged wood-shake look with Class 4 impact resistance.

Grand Sequoia AS is an impact-resistant designer shingle. GAF describes it as an SBS-modified shingle that provides the look of rugged wood shakes with UL 2218 Class 4 impact resistance. It uses SBS-modified asphalt for flexibility and impact performance, while DuraGrip™ Adhesive helps reduce the risk of shingle blow-off.

Key features:

• Designer shingle
• Rugged wood-shake appearance
• UL 2218 Class 4 impact resistance
• SBS-modified asphalt
• DuraGrip™ Adhesive
• Potential insurance savings depending on the insurer
• Premium curb appeal

Best for Michigan homes because:

Grand Sequoia AS is a strong fit for homeowners who want both storm performance and a bold, high-end roof design.

GAF vs. CertainTeed: Feature-by-Feature Comparison

1. Durability

Both brands offer durable shingles, but the strongest options are usually the upgraded architectural, designer, and Class 4 impact-resistant products.

Strong CertainTeed durability options:

• Landmark PRO
• Landmark Premium
• Landmark ClimateFlex
• Belmont
• Grand Manor

Strong GAF durability options:

• Timberline HDZ
• Timberline UHDZ with UltraMat
• Timberline AS II
• Grand Sequoia AS
• Slateline
• Camelot II

If impact resistance is the top concern, focus on shingles with a UL 2218 Class 4 rating. Class 4 is the highest UL impact-resistance rating, but homeowners should understand that impact testing does not mean a roof is hail-proof. Manufacturers may not cover hail damage under standard limited warranties. GAF specifically notes that UL impact testing is done under controlled laboratory conditions and that hail damage is not covered under GAF’s limited warranties.

2. Wind Protection

Wind protection depends on the shingle, the installation, the roof system, and whether required accessories are used.

GAF’s major wind-focused feature is LayerLock® Technology combined with WindProven™ Limited Wind Warranty eligibility. GAF states that shingles with LayerLock® Technology may qualify for the WindProven™ Limited Wind Warranty with no maximum wind speed limitation when installed with the required combination of GAF accessories.

CertainTeed also offers wind-resistance warranties for certain products. Landmark PRO, for example, includes a 15-year 110 mph wind-resistance warranty, with an upgrade available when CertainTeed starter and CertainTeed hip-and-ridge products are used.

3. Algae Resistance

Algae resistance matters in Michigan because humidity, tree cover, shaded roof areas, and moisture can contribute to black streaking on shingles.

CertainTeed uses StreakFighter® algae resistance on many products, including Landmark, Landmark PRO, Grand Manor, and Belmont. CertainTeed offers a 30-year StreakFighter algae-resistance warranty on several premium products, including Landmark PRO and Grand Manor.

GAF uses StainGuard, StainGuard Plus™, and StainGuard Plus PRO™ algae protection depending on the product. Timberline UHDZ with UltraMat can qualify for a 30-year StainGuard Plus PRO™ Limited Warranty. At the same time, products like Slateline and Camelot II include GAF Time-Release Algae-Fighting Technology with 25-year StainGuard Plus™ protection on qualifying products.

4. Style and Curb Appeal

This is where the choice becomes very personal.

Choose CertainTeed Landmark or Landmark PRO for a classic architectural shingle with a refined, dimensional look.

Choose CertainTeed Grand Manor or Belmont for a high-end slate-inspired roof.

Choose GAF Timberline HDZ or UHDZ if you want a popular architectural shingle with strong color options and system-based protection.

Choose GAF Camelot II, Slateline, Woodland, or Grand Sequoia AS for a designer roof with more distinctive character.

5. Value

The best value is not always the cheapest shingle. A lower-cost shingle may save money upfront, but an upgraded shingle may provide better appearance, longer algae protection, stronger impact resistance, or better warranty coverage.

Best budget-friendly options:

• GAF Royal Sovereign
• GAF Timberline NS
• CertainTeed Landmark

Best mid-range options:

• GAF Timberline HDZ
• CertainTeed Landmark PRO

Best premium options:

• GAF Timberline UHDZ with UltraMat
• GAF Timberline AS II
• GAF Grand Sequoia AS
• CertainTeed Grand Manor
• CertainTeed Belmont
• CertainTeed Landmark ClimateFlex

Which Shingle Is Best for Your Home?

Choose GAF Timberline HDZ if…

You want a popular architectural shingle with strong color choices, algae protection, LayerLock® Technology, and WindProven™ warranty eligibility when installed as part of a qualifying GAF roofing system.

Choose GAF Timberline UHDZ with UltraMat if…

You want a more premium Timberline shingle with deeper shadow lines, stronger algae protection, and Class 4 impact resistance on qualifying packages.

Choose GAF Timberline AS II if…

You care most about impact resistance and want SBS-modified asphalt for added flexibility and storm performance.

Choose CertainTeed Landmark if…

You want a dependable architectural shingle that offers good value, Class 3 impact resistance, algae resistance, and a dimensional look.

Choose CertainTeed Landmark PRO if…

You want a stronger, more premium architectural shingle with upgraded algae protection, good curb appeal, and solid warranty features.

Choose CertainTeed Grand Manor or Belmont if…

You want a luxury slate-inspired roof with Class 4 impact resistance, strong dimensions, and a premium appearance.

Final Recommendation: GAF or CertainTeed?

Both GAF and CertainTeed offer excellent roofing shingles. For many Michigan homeowners, the right answer comes down to three things:

1. Your budget
2. Your home’s style
3. The level of protection you want

If you want a strong architectural shingle with dependable all-around performance, GAF Timberline HDZ and CertainTeed Landmark PRO are both excellent choices.

If you want a more impact-resistant roof, compare GAF Timberline AS II, GAF Timberline UHDZ with UltraMat, GAF Grand Sequoia AS, CertainTeed Landmark ClimateFlex, CertainTeed Grand Manor, and CertainTeed Belmont.

If curb appeal is your top priority, look closely at CertainTeed Grand Manor, CertainTeed Belmont, GAF Camelot II, GAF Slateline, GAF Woodland, and GAF Grand Sequoia AS.

The best roof is not just the shingle with the most features. It is the shingle that fits your home, your neighborhood, your weather exposure, your budget, and your long-term goals.

For homeowners in Michigan, working with an experienced roofing contractor like Herbert Roofing can make the decision easier. A professional roof inspection and product consultation can help you compare colors, warranty options, ventilation needs, underlayment, ridge caps, starter shingles, and the full roofing system, not just the shingle itself.

FAQs About GAF and CertainTeed Roofing Shingles

Are GAF or CertainTeed shingles better?

Both are high-quality roofing manufacturers. GAF is especially known for the Timberline shingle family, LayerLock® Technology, and WindProven™ warranty eligibility. CertainTeed is known for durable architectural and designer shingles like Landmark, Landmark PRO, Grand Manor, and Belmont. The better choice depends on your budget, style preference, and performance needs.

What is the most durable GAF shingle?

Some of the most durable GAF options include Timberline UHDZ with UltraMat, Timberline AS II, and Grand Sequoia AS. Timberline AS II and Grand Sequoia AS use SBS-modified asphalt and offer UL 2218 Class 4 impact resistance.

What is the most durable CertainTeed shingle?

Some of the strongest CertainTeed options include Grand Manor, Belmont, Landmark Premium, and Landmark ClimateFlex. CertainTeed describes Grand Manor, Belmont, Landmark Premium, and Landmark ClimateFlex as UL 2218 Class 4 impact-resistant options.

Are Class 4 shingles worth it?

Class 4 shingles can be worth it for homeowners who want added impact resistance, especially in areas that experience hail or severe storms. However, Class 4 does not mean hail-proof, and hail damage may not be covered under standard limited warranties. Some insurance companies may offer discounts for Class 4 shingles, but homeowners should confirm with their insurance provider before choosing a product.

What roof shingle color is best for Michigan homes?

Popular Michigan roof colors include black, gray, brown, weathered wood, and slate-inspired blends. Darker colors often create a bold, classic look, while gray and weathered wood tones work well with many siding colors. The best choice depends on your home’s brick, siding, trim, stonework, and neighborhood style.

Do algae-resistant shingles stop black streaks?

Algae-resistant shingles help reduce blue-green algae discoloration, but warranty terms vary by product. CertainTeed uses StreakFighter® algae resistance on many products, while GAF uses StainGuard, StainGuard Plus™, and StainGuard Plus PRO™ technologies depending on the shingle.

Should I choose architectural shingles or designer shingles?

Choose architectural shingles if you want a strong balance of price, durability, and curb appeal. Choose designer shingles if you want your roof to make a stronger visual statement, such as a slate or wood-shake appearance. Designer shingles usually cost more, but they can dramatically improve curb appeal.