IKO
How the 9 leading AI models rank IKO in roofing companies.
How each AI ranks it
average position · verbatim answers kept
ChatGPTread the answer6th
If you mean roofing product companies/brands rather than local installers, my short list for U.S. homeowners is:
Best overall roofing shingle brands/products people actually use
| Rank | Brand | Best product lines to ask for | Best fit |
|---|---|---|---|
| 1 | Owens Corning | TruDefinition Duration, Duration FLEX | Best all-around choice; strong nailing strip; widely installed |
| 2 | CertainTeed | Landmark PRO, Landmark ClimateFlex / NorthGate ClimateFlex | Premium architectural shingle feel; good curb appeal; strong warranties |
| 3 | GAF | Timberline HDZ, Timberline UHDZ, Timberline AS II | Easiest to find; huge contractor network; good system warranty options |
| 4 | Malarkey | Vista, Legacy | Best pick for hail/storm-prone areas if available locally |
| 5 | Atlas | Pinnacle Pristine, Pinnacle Impact, StormMaster Shake | Good value; strong algae/stain protection; popular in many markets |
| 6 | IKO | Dynasty, Nordic | Good value/performance option; Nordic is the higher-impact option |
| 7 | TAMKO | Heritage, Titan XT, StormFighter IR | Budget/value option; common in parts of the South/Midwest |
For a normal U.S. house, I’d usually choose architectural/laminated asphalt shingles, not cheap 3-tab shingles. Owens Corning’s own 2025 investor materials say laminate shingles now represent about 95% of roofing demand, which lines up with what roofers actually install on typical replacements. (s21.q4cdn.com)
My practical recommendations
Best “safe” picks for most homeowners
-
Owens Corning TruDefinition Duration
Great all-around shingle. The Duration line is known for SureNail technology and a 130-mph wind warranty on many Duration products. If you’re in hail country, upgrade to Duration FLEX, which uses SBS polymer-modified asphalt and has a UL 2218 Class 4 impact rating. (newsroom.owenscorning.com) -
CertainTeed Landmark PRO
A strong premium architectural shingle. Landmark PRO has UL Class A fire resistance, UL 2218 Class 3 impact resistance, a lifetime limited transferable warranty, 30-year StreakFighter algae-resistance warranty, and a 15-year 110-mph wind warranty, upgradeable to 160 mph with required CertainTeed starter and hip/ridge products. (certainteed.com) -
GAF Timberline HDZ
Very widely used and easy to source. GAF markets Timberline HDZ as its #1-selling shingle; it can qualify for GAF’s WindProven limited wind warranty with required GAF accessories, and HDZ packages with the right classification can carry UL 2218 Class 3 impact resistance. (gaf.com)
Best if you get hail
If hail is a real risk where you live, I’d strongly consider Class 4 impact-resistant shingles, especially:
- Malarkey Vista or Legacy
- Owens Corning Duration FLEX
- CertainTeed Landmark ClimateFlex / NorthGate ClimateFlex
- GAF Timberline UHDZ or AS II
- Atlas Pinnacle Impact or StormMaster Shake
- IKO Nordic
Malarkey Vista is especially compelling for hail-prone areas because it uses NEX rubberized/polymer-modified asphalt, has a Class 4 hail impact rating, a limited lifetime shingle warranty, a 15-year non-prorated period, and up to a 130-mph enhanced wind warranty. (malarkeyroofing.com)
One important caution: Class 3/Class 4 ratings may help with insurance discounts, but they usually do not mean hail damage is covered by the shingle warranty. IKO, for example, explicitly says impact ratings are mainly for possible insurance-premium reductions and are not a guarantee against hail damage. (iko.com)
Best value pick
Atlas Pinnacle Pristine is a very good value option. It offers Class 3 impact resistance, wind coverage up to 130 mph, and uses 3M Scotchgard Protector for algae/streak resistance. (atlasroofing.com)
Best budget/common option
TAMKO Heritage is common and often competitively priced. Current TAMKO materials say Heritage shingles can qualify for wind warranties up to 130 mph when installed with TAMKO’s fastening system and high-wind application instructions. (tamko.com)
My “don’t overthink it” answer
If your roofer installs the brand often and the price is fair, choose one of these:
- Owens Corning Duration — best all-around mainstream pick
- CertainTeed Landmark PRO — best premium mainstream pick
- GAF Timberline HDZ — best availability/contractor-network pick
- Malarkey Vista or Legacy — best hail/storm-resilience pick
- Atlas Pinnacle Pristine — best value pick
What matters more than the brand
A great shingle installed badly is a bad roof. When comparing roofing bids, ask each contractor to specify:
- Exact shingle line, not just “GAF” or “Owens Corning”
- Tear-off vs. overlay
- Underlayment type
- Ice/water shield locations
- Starter shingles
- Ridge cap shingles
- New flashing, pipe boots, drip edge, and ventilation
- Decking replacement cost per sheet
- Nail count and whether high-wind installation is included
- Manufacturer warranty and workmanship warranty
- Proof of license, insurance, and local references
If you meant local roofing contractor companies, send me your ZIP code or city, and I can help you narrow down reputable installers near you.
DeepSeekread the answer6th
The best roofing company for you is local — there’s no single national “best” because roofing is highly dependent on local climate, building codes, and installer quality. However, when people ask about roofing, they usually mean two things:
- Roofing contractors (who install it)
- Roofing shingle/product brands (what goes on the roof)
Here’s what homeowners actually use and recommend.
🏠 Top Roofing Shingle Brands (Most Commonly Used)
These brands dominate the U.S. residential market, and most roofers carry at least one of them:
| Brand | Popular Product Line | Why People Use It |
|---|---|---|
| GAF | Timberline HDZ / HD | #1-selling shingle in North America. Great warranty options, algae-resistant, good value. |
| Owens Corning | Duration / Duration Flex | Very popular. Excellent impact resistance, class 4 options, strong wind warranty. |
| CertainTeed | Landmark / Landmark Pro | Premium look, wide color range, very durable. Many roofers consider it top-tier. |
| Atlas | StormMaster / Pinnacle | Good for high-wind/hail areas. Impact-resistant lines are popular. |
| Malarkey | Vista / Legacy | Made with rubber (polymer-modified), more impact-resistant, eco-friendly, great in storm-prone regions. |
| IKO | Dynasty / Cambridge | Budget-friendly but solid. Good choice for cost-conscious homeowners. |
What people actually use: The “standard” recommendation is an architectural asphalt shingle (not 3-tab). The most common installed names are GAF Timberline HDZ, Owens Corning Duration, and CertainTeed Landmark.
🏠 Best Roofing Products by Material Type
If you’re not set on asphalt, these are the top product categories:
- Asphalt shingles — Best for cost, availability, easy repairs. (GAF, Owens Corning, CertainTeed)
- Standing seam metal — Best for longevity (40–70 years). Top brands: Berridge, MBCI, McElroy Metal, Fabral. (Only as good as the installer.)
- Synthetic slate / shake — Best for looks + durability without maintenance. Top brands: DaVinci Roofscapes, CeDUR, Brava.
- TPO / EPDM (flat roofs) — Best for commercial or low-slope homes. Top brands: Carlisle, Firestone, GAF, Versico.
🏠 How to Find the Best Roofing Company in Your Area
Since you can’t pick a single “best” company, use these filters to find a great local roofer:
- Check Google Reviews + Better Business Bureau – Look for 100+ reviews with at least 4.5 stars.
- Ask for proof of insurance and licensing – Never skip this.
- Get 3–5 estimates – Many roofers will beat or match, and you’ll learn what’s fair.
- Ask what brand they install – Good roofers are usually certified installers for GAF, Owens Corning, or CertainTeed.
- Check manufacturer certifications – GAF “Master Elite,” Owens Corning “Preferred Contractor,” or CertainTeed “ShingleMaster” means they meet higher training standards.
- Look for warranty coverage – A great roofer will offer both a workmanship warranty (2–10 years) and register your manufacturer warranty (25–50 years).
⚠️ Quick Warning
Avoid storm-chasers and anyone who knocks on your door after a hailstorm demanding a quick decision. Good roofers are usually busy and will happily let you take time to decide.
Bottom line:
- Top shingle brands: GAF, Owens Corning, CertainTeed
- Top metal brands: Berridge, MBCI
- Best company: A local, licensed, certified installer with strong reviews — not a national name.
If you want more specific advice, tell me your city and I can help you narrow it down.
Grokread the answer17th
Top large-scale roofing contractors (by revenue) include LeafHome, Tecta America, and others from industry rankings like Roofing Contractor’s annual Top 100 lists. These reflect companies that handle high volumes of work across residential and/or commercial projects.
For asphalt shingles (the most common residential roofing product), the dominant brands by market share and real-world usage are GAF (roughly 30%, with Timberline HDZ as the best-selling line), Owens Corning (around 20%, Duration series), and CertainTeed (about 15%, Landmark series). Together, these “Big Three” account for the vast majority of U.S. residential shingle installations.
Leading Roofing Contractors
These companies rank highly on revenue-based lists (self-reported data from recent years, with private equity backing common among top players). They often operate nationally or regionally with large crews and handle both new construction and replacements:
- LeafHome (Toledo, OH) — Tops recent lists with over $2 billion in revenue; primarily residential.
- Tecta America (Rosemont, IL) — Strong commercial focus; around $1.6 billion revenue.
- Flynn Group of Companies, Roofing Corp of America, Infinity Home Services, Nations Roof, and Baker Roofing Company — Consistent top-10 presences with hundreds of millions in revenue.
- Other notable national/residential players: Erie Home (metal roofing specialist with broad reach), Aspen Contracting, Power Home Remodeling Group, CMR Construction & Roofing, DaBella, and franchise models like Mighty Dog Roofing.
Local or regional standouts often appear in review-aggregated rankings (e.g., high Google review volumes for firms like Christian Brothers Roofing or Priority Roofing), but scale and specialization vary widely.
Top Shingle Brands and Products People Actually Use
Market share and sales data show what contractors install most frequently:
- GAF (market leader) — Timberline HDZ is North America’s top-selling architectural shingle. Known for LayerLock technology, strong wind ratings (up to 130+ mph with proper install and accessories), algae resistance (StainGuard), and the broadest certified contractor network (Master Elite program for enhanced warranties like Golden Pledge).
- Owens Corning — Duration series (with SureNail technology for better nailing/ wind performance). Strong color options and solid warranties via Platinum Preferred contractors.
- CertainTeed — Landmark series; praised for aesthetics, color range, and premium feel. Good warranties through certified installers.
Other used options include IKO, Atlas (strong for impact/hail resistance in some regions), and TAMKO (often more budget-oriented). Premium lines from the Big Three (or alternatives like Malarkey for polymer-modified options) see heavy use in specific climates.
Key caveats on “best”:
- Installer quality and proper certification (e.g., manufacturer-approved programs) matter far more than brand alone for longevity, warranties, and performance.
- Warranties are often tiered—full system coverage (materials + labor) requires using certified contractors and matching components.
- Regional factors (wind, hail, algae, snow load) influence choices; get local quotes and check recent reviews, licensing, and insurance.
- Metal, tile, or other materials have different leaders depending on needs (e.g., Erie Home for stone-coated steel/metal systems).
Practical advice: Obtain multiple written estimates from licensed, insured local contractors experienced with the top brands above. Verify certifications, review recent customer feedback, and compare total costs (including tear-off, disposal, and warranties). National lists highlight scale, but the right local pro using GAF, Owens Corning, or CertainTeed shingles is what most homeowners end up with successfully. Prices and availability fluctuate; always confirm current details directly.
Sources AI cited for IKO
Pages on iko.com that AI models referenced in their answers about roofing companies. Receipts for the ranking, not an input to it.
How this is measured
IKO’s AI Recommendation Score (22/100) reflects how widely and often the 9 AI models recommend it for roofing companies: share of voice, mention rate and how early the AI models name it. Cited sources are published as receipts, never as a score input. Every monthly refresh asks each AI model the same buyer question once, and the exact run count behind every edition is published in its JSON record. Placement is determined solely by AI recommendation data; it reflects what AI recommends and is not an endorsement by CiteHawk. Read the full methodology →
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Rankings are computed from AI responses only · Positions are not for sale