If you’re planning a roof replacement in 2025 and considering top-tier shingles, CertainTeed’s Landmark Pro and Landmark ClimateFlex are two of the industry’s most talked‑about options. Both bring excellent performance — but they differ in ways that matter: impact resistance, warranty, cost, aesthetics, and suitability for different climates. At Gorilla Roofing, we want you to make a fully informed decision. Let’s break it down in detail so you get the right roof for your home.
What Are These Shingles?
Landmark Pro
- Type & construction: Landmark Pro is an architectural (laminate) shingle, built on a fiberglass mat, with multiple layers. It is part of CertainTeed’s Landmark line.
- Impact rating: UL 2218 Class 3. That means it offers solid protection against hail impact but is less resistant than a Class 4 product.
- Fire resistance: UL Class A. That means it has the highest level of fire safety for building materials.
- Warranty features: Lifetime limited transferable warranty; 30-year StreakFighter® algae-resistance coverage; 10‑year SureStart™ for material & labor defects; 15‑year wind-resistance at 110 mph (upgradeable to 130 mph under certain conditions).
Landmark ClimateFlex
- Type & construction: A polymer‑modified asphalt architectural/designer shingle. The “ClimateFlex” technology introduces more rubberized asphalt, which enhances pliability (especially in cold weather), granule adhesion, and resistance to hail damage.
- Impact rating: UL 2218 Class 4 — the highest standard for impact resistance under that test. That means it offers protection against updrafts, crosswinds, and all manner of gusty, blustery weather.
- Fire resistance: UL Class A.
- Warranty features: Lifetime limited transferable warranty against manufacturing defects; 50‑year limited warranty for group‑owned or commercial properties; 25‑year StreakFighter algae-resistance; 10‑year SureStart protection; wind resistance warranty of 110 mph (with upgradeable option to 130 mph).
Key Comparison Criteria
To decide which shingle is right for your roof in 2025, here are the main criteria we’ll compare:
1. Impact & Weather Resistance
- ClimateFlex shines here: With UL 2218 Class 4 impact rating, ClimateFlex is built for hail, extreme weather, falling debris, etc. It holds up better under severe conditions.
- Landmark Pro, being Class 3, still offers a good level of protection, but in areas with frequent hail or harsh conditions like O’Fallon or Belleville, it may sustain more damage over time.
- ClimateFlex also offers enhanced granule adhesion, meaning less loss of protective granules in storms, which helps preserve both protection and appearance.
- Cold‑weather flexibility is better with ClimateFlex; the rubberizing in the asphalt helps prevent brittleness in cold weather, which can reduce cracking or damage in low temperatures.
👉 Not sure what Class 3 vs Class 4 really means for your roof? Get the full explanation here.
2. Durability Over Time (Lifespan)
- With regular maintenance and good installation, both shingles are expected to last decades.
- Landmark Pro typically gives strong performance for 25‑30+ years, depending on climate, roof slope, ventilation, exposure, etc.
- ClimateFlex may stretch longer in tough climates, due to its greater impact resistance and weather‑proofing technologies.
- Things that shorten shingle lifespan: poor installation, lack of ventilation, frequent extreme weather (hail, high winds, UV exposure), and deferred maintenance.
👉 Explore what lifespan you can expect from CertainTeed shingles based on real-world conditions in Missouri & Illinois.
3. Aesthetic Appeal & Color Options
- Both lines offer a solid selection of colors, styles, and designs. Landmark Pro offers “Max Def” colors (richer, more vibrant hues) in certain variants.
- ClimateFlex also comes in designer style options, often with dimensional design that mimics wood shake or natural materials while offering the performance advantages.
- If curb‑appeal is a priority, including resale or matching architectural features of your home, the richer, more textured look of Landmark Pro may give a stronger visual boost.
4. Warranty & Protections
So ClimateFlex gives you stronger protection in impact and weather, while Landmark Pro is solid, but slightly less protective in extreme conditions.
👉 Before you choose your shingle, make sure your investment meets current insurance requirements for roof replacements. See our guide on Insurance Coverage Requirements for Roof Replacement.
5. Cost: Materials + Installation
Cost can vary a lot depending on location, roof complexity (pitch, number of penetrations, valleys, etc.), roof square footage, and labor rates. Here are some general considerations:
- The material cost for ClimateFlex will be higher than for Landmark Pro, because of the more advanced materials (polymer‑modified asphalt, more layers, etc.).
- Installation cost is similar in method (both are architectural shingles), but ClimateFlex may be more expensive because of heavier shingles, more care in installation, and possibly longer handling/prep in cold climates.
- Also factor in the cost of other roof system components: underlayment, ventilation, ridge caps, starter strips, flashing, etc., which may be more critical with higher‑spec shingles.
- In many cases, homeowners see a higher upfront cost with ClimateFlex, but may gain value via lower insurance premiums, fewer repairs, longer life, and increased resale value.
👉 Want to understand what you’re paying for beyond shingles? Explore our 2025 labor cost breakdown for roofing jobs.
6. Suitability by Climate & Region
Here’s where your location really matters:
Pros & Cons Side‑by‑Side
Here’s a snapshot comparing pros and cons for quick reference:
Choosing Based on Your Priorities: What Matters Most to You?
To decide which shingle is right for your roof, ask yourself:
- How often does your area get hail, severe storms, or large temperature swings?
If frequently, leaning toward ClimateFlex makes sense. - How long do you plan to stay in your home?
If you’ll be there many years (15‑30+), paying more up front for a more durable roof tends to pay off. - How much is the upfront cost vs the long‑term value important?
Budget constraints may favor Landmark Pro; but factor in potential savings on repairs, insurance, and property value over time. - Aesthetics: are you aiming for high curb appeal, resale value, or matching a particular style?
Color, texture, designer look—Landmark Pro may offer a visual edge. - Warranty and insurance incentives:
Some insurers give discounts for impact‑resistant (Class 4) roofing. Also, warranty transferability is important if you sell the house. ClimateFlex often gives more robust protections in this area.
What Is New or Updated for 2025?
- CertainTeed continues refining its color palettes (Max Def and designer styles) to keep up with architecture trends.
- Warranty tweaks: ensuring transferability, higher wind ratings with proper accessory usage.
- Improved installer guidelines, especially for cold‑weather installation of ClimateFlex shingles.
- Emphasis on energy efficiency: cooling costs, reflective colors—not always a headline for these two, but related product lines show growing trends.
👉 Want to stay ahead of the curve? Discover the roofing trends shaping choices in 2025.
When Landmark Pro Is the Better Choice
If this sounds like you, Landmark Pro may be the smart pick:
- Moderate climate, with fewer hailstorms and weather extremes.
- You want a strong architectural look + good warranty without paying the top‑of‑the‑line price.
- Budget is limited, and you need good value.
- You still want durable performance but are less concerned about maximum impact resistance.
When ClimateFlex Is the Best Fit
ClimateFlex makes more sense if:
- You live in a hail‑prone region, or areas with lots of freeze‑thaw cycles, or heavy storms.
- You want longer performance with less risk of damage, less maintenance, fewer repairs.
- You plan to stay in the home for many years, or want strong resale value.
- You value maximum warranty protection and insurance discounts for impact‑resistant roofing.
Cost vs. Value: Is the Upgrade to ClimateFlex Worth It?
Here are the trade‑offs:
- Yes, upfront cost is higher. But over typical roof life (20‑30+ years), the extra protection can save you from repair costs, premature replacement, and possibly reduce insurance costs.
- A roof that resists hail damage keeps its appearance and structural integrity longer—less granule loss, fewer leaks, better visual curb appeal.
- In resale, a roof with a Class 4 impact rating, solid warranty, and designer look can boost home value and buyer confidence.
👉 Need help budgeting your roof replacement? Get our full breakdown of what makes up your total investment.
How Gorilla Roofing Helps You Decide
At Gorilla Roofing, we walk you through all these factors:
- We assess your climate & exposure (hail, wind, temperature swings).
- We show you samples of both Landmark Pro and ClimateFlex so you can see color, texture, feel.
- We give you transparent cost estimates: materials, labor, accessories needed, warranties.
- If possible, we show you case studies of similar homes in your neighborhood or region where one over the other was used.
Make the Right Roof Choice for YOUR Home
Choosing between CertainTeed Landmark Pro and Landmark ClimateFlex isn’t just about picking a shingle—it’s about matching protection, value, and visual appeal to your home’s environment and your long‑term plans.
If you want maximum protection from hail, weather extremes, long lifespan, and strong warranty protection, ClimateFlex is likely the better investment in 2025.
If your area is more moderate and you’re looking for solid value, good warranty, strong curb appeal without the premium cost, Landmark Pro could be ideal.
Ready to Roof Smart? Contact Gorilla Roofing
At Gorilla Roofing, we pride ourselves on delivering top-notch roofing services with integrity and professionalism. Our team is licensed, insured, and committed to exceeding your expectations.
📞 Call us today at (636) 295-1212
🌐 Request a FREE roofing estimate
We’ll help you decide whether Landmark Pro or ClimateFlex is right for your roof—even show you samples and estimated costs matched to your home.
Protect your investment. Enhance your curb appeal. Let’s build something that lasts.