Best Gutter Materials — Aluminum Copper Vinyl Steel

When you're replacing or installing gutters, the material you choose determines how long they'll last, how much maintenance they'll require, and what they'll cost you over time. Not every material performs the same way under harsh weather, heavy rainfall, or extreme temperatures. Some hold up for decades, and others fail within years. Before you make a decision, you need to know exactly where each material succeeds — and where it doesn't.

What Separates a Good Gutter Material From a Bad One

Several key factors determine whether a gutter material is worth your investment. Gutter material performance hinges on durability, corrosion resistance, structural integrity under heavy rainfall, and the ability to handle debris without warping or cracking. You'll also want to reflect on installation complexity, maintenance requirements, and long-term cost efficiency.

Environmental impact matters too. Some materials require energy-intensive manufacturing processes, while others are recyclable or sustainably sourced. A good gutter material balances functional longevity with a minimal ecological footprint.

Additionally, you should evaluate compatibility with your local climate. Extreme heat, freezing temperatures, and high humidity all stress different materials differently. Choosing the wrong material for your environment accelerates deterioration, increases repair costs, and compromises your home's water management system faster than you'd expect.

Vinyl Gutters: Affordable but Limited

Vinyl gutters are among the most budget-friendly options you'll find, typically costing between $3 and $5 per linear foot, making them an attractive choice if you're working with a tight installation budget. However, you'll need to account for their poor performance in extreme temperatures, as vinyl becomes brittle in freezing conditions and warps under intense heat, limiting their reliability in climates with significant seasonal swings. Their lifespan typically tops out at 10 to 20 years—considerably shorter than metal alternatives—so you're likely trading long-term durability for short-term savings. See also: Granules in Gutters — What It Means for Your Roof

Vinyl Gutter Cost Benefits

Among the most budget-friendly gutter materials on the market, vinyl gutters typically cost between $3 and $5 per linear foot for materials alone, making them a popular choice for cost-conscious homeowners. When you factor in installation, total project costs remain considerably lower than aluminum or copper alternatives. Key vinyl gutter advantages include zero corrosion risk, lightweight handling, and tool-free snap-together assembly. You won't need specialized contractors, which further reduces labor expenses. For vinyl installation tips, always account for thermal expansion by leaving slight gaps at seam joints, particularly in regions with temperature extremes. You should also slope sections at least one-quarter inch per ten feet toward downspouts to guarantee proper drainage and prevent standing water from accelerating joint deterioration.

Weather Resistance Limitations

Those low material costs come with trade-offs you'll want to weigh carefully, particularly around long-term weather performance.

Vinyl's material flexibility becomes a liability in extreme climates. UV exposure causes brittleness, cracking, and color fading, directly undermining gutter performance over time.

Environmental factors like freeze-thaw cycles increase maintenance frequency considerably. Installation challenges arise because thermal expansion limits customization options in longer runs. While cost effectiveness remains vinyl's strongest advantage, you'll likely face earlier replacement compared to aluminum, copper, or steel alternatives.

Lifespan and Durability Concerns

How long can you realistically expect vinyl gutters to last? Typically, you're looking at 10–20 years, which falls short in material comparisons against aluminum's 20–30 years and copper's 50+ years. Vinyl's polymer composition degrades faster because UV radiation breaks down its molecular structure, causing brittleness and cracking over time.

Your longevity expectations should also account for installation quality and climate. In regions with extreme temperature fluctuations, vinyl contracts and expands repeatedly, weakening seam joints and accelerating failure points. Heavy snow loads can crack sections outright.

Unlike metal alternatives, you can't repaint or greatly restore vinyl once it deteriorates. You'll face full replacement rather than targeted repairs. If you're prioritizing long-term value over upfront savings, vinyl's durability limitations make it a questionable investment for permanent structures.

Where Vinyl Gutters Fall Short

While vinyl gutters offer clear cost advantages, they'll let you down in ways that matter. Extreme heat causes vinyl to sag and warp, while freezing temperatures make it brittle and prone to cracking under ice loads. You'll also find that vinyl's low structural rigidity means it can pull away from fascia boards faster than metal alternatives, especially under heavy rainfall or debris accumulation.

Temperature Sensitivity Issues

Vinyl gutters struggle considerably in extreme temperature environments, making them a poor choice for regions with harsh winters or scorching summers. Thermal expansion causes vinyl sections to warp, crack, and pull away from fascia boards when temperatures fluctuate dramatically. In freezing conditions, vinyl becomes brittle, making it susceptible to impact damage from falling ice or debris. During peak summer heat, sections can sag and distort permanently.

Unlike metal alternatives, vinyl's insulation properties don't compensate for its structural weaknesses under thermal stress. You'll notice joint separations developing faster in climates experiencing significant seasonal swings, creating leak points that compromise your home's foundation. If you live in the Pacific Northwest, Deep South, or northern states, you should seriously reconsider installing vinyl gutters altogether.

Limited Structural Strength

Beyond temperature vulnerability, vinyl gutters carry another significant liability: they simply can't handle heavy structural loads the way metal systems can. Their structural design limitations become apparent when you're dealing with heavy rainfall, accumulated debris, or ice buildup. Under these conditions, vinyl sections sag, warp, or pull away from fascia boards entirely.

You'll find that gutter reinforcement options for vinyl systems are surprisingly limited. Unlike aluminum or steel gutters, vinyl doesn't accept hangers, brackets, or internal supports as effectively. The material's inherent flexibility works against structural integrity, especially across longer runs.

If you're installing gutters on a home with wide eave overhangs or high-volume drainage requirements, vinyl simply won't provide the rigidity you need. Metal systems outperform vinyl every time structural demands increase.

Aluminum Gutters: The Most Popular Choice

Aluminum gutters dominate the residential market for good reason—they strike an ideal balance between affordability, durability, and ease of installation. They're lightweight, rust-resistant, and typically last 20 years with minimal maintenance. When following installation tips, make certain you use aluminum-compatible screws and maintain a ¼-inch slope per 10 feet toward downspouts to prevent pooling. Seamless aluminum gutters, formed on-site using specialized equipment, greatly reduce leak points compared to sectional alternatives. You'll also benefit from an extensive range of color options—most manufacturers offer 30+ factory-applied finishes that resist fading and chipping. Aluminum handles thermal expansion reasonably well, though you should leave small gaps between sections in hotter climates. At $4–$9 per linear foot installed, aluminum delivers strong long-term value for most homeowners. Related: Best Roofing for Cold Climates — Snow and Ice Rated

Why Aluminum Holds Up in Most Climates

Whether you live in a humid coastal region or a dry inland climate, aluminum's material properties make it one of the most adaptable gutter options available. Its natural oxide layer provides corrosion resistance, preventing rust even when exposed to prolonged moisture, salt air, or acid rain. That weather adaptability means you won't face premature deterioration regardless of your regional conditions.

Aluminum also handles temperature fluctuations well. It expands and contracts without cracking, which is critical in climates with significant seasonal swings. Unlike steel, it doesn't require additional coatings to resist oxidation, reducing your long-term maintenance burden. You can install aluminum gutters in snowy northern regions or subtropical zones and expect consistent performance. Its lightweight structure also simplifies installation, letting you keep labor costs manageable without sacrificing durability.

Steel Gutters: Built for Harsh Weather

When you're dealing with extreme weather—heavy snow loads, high winds, or hail—steel gutters offer a structural advantage that aluminum simply can't match, thanks to their higher tensile strength and impact resistance. You'll find that both galvanized and stainless steel options resist denting, warping, and physical deformation under conditions that would compromise lighter materials. To maintain their longevity, you'll need to apply rust-inhibiting coatings periodically and inspect seams for corrosion, particularly in coastal or high-humidity environments.

Steel Gutter Durability Benefits

Steel gutters earn their reputation through sheer resilience—they're engineered to handle punishment that would buckle or crack lighter materials. Their structural integrity holds up under heavy rainfall impact, channeling high water volumes without warping or splitting. Galvanized and stainless variants deliver corrosion resistance that extends service life well beyond vinyl alternatives.

• Impact strength: Steel walls deflect fallen branches and hail without denting
• Load capacity: Handles ice accumulation and standing water without sagging
• Temperature tolerance: Maintains shape through extreme freeze-thaw cycles
• Coating durability: Galvanized zinc layers actively block rust formation at the surface

You're investing in a system that performs under conditions other materials simply can't sustain. Steel demands respect—and it earns yours back through decades of reliable performance.

Weather Resistance Properties

Harsh weather is where steel gutters separate themselves from the competition. In any gutter performance comparison, steel consistently outperforms vinyl and aluminum under extreme conditions. You'll find that galvanized and Galvalume steel resist corrosion caused by acid rain, heavy snowfall, and prolonged UV exposure. Steel gutters won't warp during heat waves or crack during freeze-thaw cycles, making them ideal for climates with dramatic seasonal shifts. When evaluating environmental impact, steel's density provides structural stability against high winds and heavy debris loads that would deform lighter materials. You should also note that steel's thermal expansion rate is lower than aluminum's, reducing joint stress over time. For regions experiencing severe weather regularly, steel gutters deliver consistent, long-term performance that other materials simply can't match.

Maintenance And Longevity

Maintaining steel gutters requires less effort than most homeowners expect, though a consistent routine will maximize their 20–50 year lifespan. Prioritize seasonal cleaning and scheduled gutter inspections to catch problems early.

• Flush debris twice yearly using a garden hose, targeting downspout openings where blockages form fastest
• Inspect seams and joints each fall for rust spots, applying zinc-based primer before corrosion spreads beneath the surface
• Check fasteners after heavy storms, retightening loose screws that allow gutters to pull away from fascia boards
• Touch up scratched galvanized or painted coatings immediately using rust-inhibiting paint, preventing moisture from penetrating exposed steel

You'll extend your gutters' service life considerably by staying proactive. Neglecting these steps accelerates oxidation, particularly in regions with heavy rainfall, freezing temperatures, or coastal salt exposure.

Galvanized vs. Galvalume Steel Gutters

When choosing between galvanized and Galvalume steel gutters, you're weighing two corrosion-resistant options that differ in composition, longevity, and cost. Galvanized benefits include affordability and widespread availability, making it a practical choice for budget-conscious projects. Its zinc coating provides solid rust protection, though it degrades faster in humid or coastal climates.

Galvalume comparisons reveal a clear advantage in durability — Galvalume combines aluminum, zinc, and silicon, offering superior corrosion resistance and a longer lifespan, often exceeding 40 years. It performs better in harsh environments but typically costs more upfront.

If you're prioritizing cost, galvanized steel works well in mild climates. If longevity matters more, Galvalume justifies its higher price. Your regional weather conditions and budget should ultimately drive this decision.

Copper Gutters: Premium Performance and Curb Appeal

If you're looking for a gutter material that combines exceptional longevity with striking aesthetics, copper is your top-tier option, lasting 50 to 100 years with minimal maintenance. You'll benefit from copper's natural patina, which forms a protective oxide layer that resists corrosion without paint or coatings, making it ideal for high-humidity and coastal environments. However, you'll pay a premium price of $25 to $40 per linear foot installed, compared to $6 to $12 for aluminum, so copper makes the most financial sense on high-value homes where curb appeal and long-term durability justify the upfront investment.

Copper Gutter Benefits

Copper gutters stand apart from other gutter materials by delivering exceptional longevity, natural beauty, and structural integrity that few alternatives can match. You're investing in a system that naturally resists corrosion, mold, and pests without chemical treatments. Copper's aesthetic appeal transforms your roofline as it develops a distinctive patina over decades.

• A warm, reddish-brown surface gradually shifting into rich, layered verdigris green
• Seamless joints that eliminate weak points where leaks typically originate
• Natural antimicrobial properties that prevent algae and moss buildup inside channels
• Self-healing oxidation that reinforces the metal's surface rather than degrading it

Copper sustainability benefits include an indefinitely recyclable material requiring no synthetic coatings. You'll spend more upfront, but copper's 100-year lifespan considerably reduces long-term replacement costs.

Copper Gutter Costs

The price you'll pay for copper gutters reflects both the material's rarity and its installation complexity. Copper pricing factors include material costs ranging from $25–$40 per linear foot, plus specialized labor averaging $10–$20 per linear foot. Expect total installed costs between $4,000–$10,000 for an average home.

When conducting a copper lifespan comparison against other materials, the math shifts considerably. Copper lasts 50–100 years versus aluminum's 20–30 years, meaning you'll likely replace aluminum systems two to four times before copper requires attention. That longevity effectively reduces copper's long-term cost per year.

Additional cost drivers include:

• Soldered versus sectional installation
• Roof pitch complexity
• Regional contractor availability
• Downspout count and configuration

Factor in minimal maintenance expenses, and copper's premium price becomes more financially defensible over time.

How Long Does Each Gutter Material Last?

When choosing gutters, how long each material lasts directly impacts your long-term costs and maintenance schedule. A gutter longevity comparison reveals significant differences across materials, and understanding maintenance requirements helps you make a smarter investment.

• Aluminum: Lasts 20–30 years with minimal upkeep; resists rust but dents under heavy impact
• Copper: Lasts 50–100 years, developing a protective patina; requires virtually no maintenance
• Vinyl: Lasts 10–20 years; becomes brittle in extreme temperatures and needs frequent inspection
• Steel: Lasts 20–30 years when galvanized; prone to rust without consistent sealing and repainting

Copper delivers the longest lifespan, while vinyl demands the most attention. Match your material choice to your climate, budget, and tolerance for ongoing upkeep.

Which Gutter Material Handles Heavy Rain Best?

When choosing a gutter material for heavy rainfall, you'll need to prioritize water flow capacity, since wider, seamless aluminum or copper gutters typically handle high volumes better than standard vinyl systems. Clog resistance also matters greatly, as debris-blocked gutters overflow quickly during intense storms, making stainless steel mesh guards or smooth-interior copper gutters strong contenders. If you live in a high-rain climate, you'll want to take into account oversized 6-inch aluminum or galvanized steel gutters paired with wider downspouts to prevent water backup and structural damage.

Water Flow Capacity

Heavy rainfall puts every gutter system to the test, and the material you choose directly affects how well your gutters move water away from your home. Gutter design and drainage efficiency depend heavily on the material's structural integrity under pressure.

• Aluminum stays rigid during heavy downpours, maintaining its shape without sagging
• Copper handles extreme rainfall with exceptional durability, resisting corrosion that typically degrades flow capacity
• Steel supports high-volume water flow without bending under heavy debris accumulation
• Vinyl becomes brittle in cold climates, cracking under rapid water expansion and contraction

You'll want to match your gutter material to your regional rainfall intensity. Heavier precipitation zones demand stronger materials like steel or copper to sustain consistent, uninterrupted drainage performance year-round.

Clog Resistance Matters

Leaves, twigs, and debris clog gutters faster than most homeowners expect, and your choice of material plays a direct role in how often you'll need to clear them out. Smooth-interior materials like aluminum and copper resist debris adhesion better than textured vinyl, which traps sediment along its seams. Gutter design also influences clog prevention considerably — wider K-style profiles move debris through more efficiently than round or narrow profiles. Steel gutters, while durable, develop interior rust pitting over time, giving debris more surface area to catch and accumulate. Copper's naturally smooth patina minimizes buildup. If you're in a heavily wooded area, pairing a clog-resistant material with a leaf guard system delivers the most reliable long-term protection, regardless of which material you ultimately select.

Best High-Rain Options

Clog resistance matters less if your gutters can't move water fast enough during a downpour, and that's where material choice intersects directly with flow capacity and structural performance. For high rain durability and drainage efficiency, aluminum and steel lead the field.

• Aluminum's smooth interior surface accelerates water flow, reducing pooling during sudden heavy downpours
• Steel's rigid wall structure resists sagging under the weight of rushing water and debris loads
• Copper expands minimally under thermal stress, maintaining tight joints even through repeated storm cycles
• Oversized K-style profiles in aluminum or steel move considerably more volume than standard five-inch vinyl sections

Vinyl warps and deflects under sustained hydraulic pressure, compromising your drainage efficiency precisely when you need it most. Choose aluminum or steel when heavy rainfall defines your climate.

Gutter Material Costs: Upfront vs. Long-Term

When choosing gutter materials, you'll need to weigh upfront installation costs against long-term performance and maintenance expenses. Installation costs vary considerably, but cheaper materials often demand higher replacement frequency and ongoing upkeep.

Vinyl delivers the lowest entry price but degrades faster in extreme climates. Aluminum balances affordability with durability. Steel handles heavy loads but risks rust without proper coating. Copper costs the most upfront yet virtually eliminates replacement frequency concerns over decades, making it the strongest long-term investment for permanent installations.

Which One Is the Easiest to Maintain?

Maintenance demands differ sharply across gutter materials, so understanding what each requires helps you avoid costly surprises. Applying these gutter maintenance tips alongside a material lifespan comparison lets you choose wisely.

• Vinyl warps under UV exposure and cracks in freezing temps, requiring seasonal inspections and frequent joint resealing
• Aluminum resists rust but dents easily; you'll clean debris twice yearly and check fasteners after storms
• Steel demands rust-inhibiting paint touch-ups every few years or corrosion accelerates rapidly
• Copper needs almost zero intervention beyond annual debris removal; oxidation actually protects the metal

Copper clearly wins for lowest maintenance burden. Aluminum ranks second for most climates. Vinyl suits mild regions but demands vigilant monitoring. Steel requires the most active upkeep to preserve structural integrity long-term.

How to Match Gutters to Your Home's Exterior

Matching gutters to your home's exterior involves three core decisions: material finish, profile style, and color coordination. For architectural harmony, align your gutter profile with your roofline — K-style suits modern and colonial homes, while half-round complements craftsman and historic styles. Copper works naturally with brick and aged wood, whereas aluminum and vinyl offer the broadest gutter color options, spanning whites, browns, greens, and custom finishes. Steel delivers a sharper, industrial aesthetic ideal for contemporary builds. Match your gutter color to your fascia board rather than your siding — this creates a cleaner visual shift. If you're installing aluminum, you can paint it to match precisely. Always request physical color samples, since digital swatches rarely capture accurate sheen and tone under natural light.

Does Your Gutter Material Affect Home Resale Value?

Getting your gutters to look right is one thing — but does the material you choose actually move the needle on resale value? Resale trends suggest it can, particularly when gutter aesthetics align with the home's overall curb appeal.

• Copper gutters signal premium craftsmanship, attracting buyers who value upscale finishes
• Seamless aluminum blends cleanly with modern or traditional exteriors, boosting perceived maintenance quality
• Vinyl can raise concerns for savvy buyers expecting frequent replacement or UV degradation
• Steel gutters on well-maintained homes signal durability, especially in harsh-climate markets

Buyers and inspectors notice gutters. Choosing a material that looks intentional, holds up visually, and fits the neighborhood's price point positions your home competitively — without requiring a full exterior renovation to make an impact.

How Climate Should Drive Your Gutter Decision

Where you live dictates which gutter material will actually hold up — and choosing wrong means accelerating failure, leaks, and premature replacement costs. Climate considerations should rank among your top decision factors before purchasing any gutter system.

In freeze-thaw regions, avoid vinyl — it cracks under repeated thermal cycling. Aluminum and steel handle cold better, though steel demands consistent coating maintenance to prevent rust. In coastal climates, regional impacts from salt air corrode steel rapidly; copper or aluminum performs markedly better. High-rainfall zones need heavier-gauge materials — thinner vinyl buckles under sustained water weight and debris load. In arid, UV-intense climates, vinyl degrades and becomes brittle faster than metal alternatives. Match your gutter material to your specific environmental conditions, and you'll extend system lifespan considerably while reducing long-term maintenance costs.

Seamless vs. Sectional Gutters by Material

Seamless and sectional gutters each carry distinct advantages depending on which material you're working with, and understanding that relationship saves you from costly mismatches. Material preferences heavily influence whether seamless or sectional gutter installation makes sense for your home.

Matching your gutter material to the right installation style prevents costly mistakes and ensures long-term performance for your home.

• Aluminum suits seamless designs perfectly, reducing joints that cause leaks and improving clog prevention
• Vinyl works best in sectional gutters, offering affordable design options but requiring vigilant maintenance tips around joint sealing
• Copper demands seamless fabrication to preserve its aesthetic choices and maximize long-term gutter performance
• Steel tolerates both configurations, though seamless steel minimizes corrosion-prone seams in wet climates

Material comparisons reveal that seamless gutters outperform sectional versions in durability and leak resistance, while sectional gutters offer easier DIY replacement when individual sections fail.

Can You Install These Gutters Yourself?

Whether you tackle gutter installation yourself depends largely on the material you've chosen and your comfort level with ladder work, measuring, and basic metalworking. Vinyl sections offer the easiest DIY installation — they snap together without soldering or specialty gutter tools. Aluminum sectional gutters are also manageable, requiring tin snips, a pop rivet gun, and sealant. Steel demands more precision and physical effort, making it less beginner-friendly. Copper is the most unforgiving; improper soldering causes leaks and visible damage, so most homeowners hire professionals. Seamless gutters in any material require a roll-forming machine only contractors own, eliminating the DIY option entirely. Assess your skill level honestly before committing — a poor installation causes fascia rot, foundation erosion, and costly repairs that exceed professional labor costs.

Rust, Sagging, and Leaks: Signs Your Gutter Material Is Failing

Even the best installation won't save gutters that have reached the end of their service life, and knowing what failure looks like helps you act before water damages your fascia, soffit, or foundation. Consistent gutter maintenance catches these warning signs early, saving you costly repairs.

• Rust streaks running down steel or galvanized sections signal oxidation eating through the metal wall
• Sagging channels pulling away from the fascia indicate failed hangers or wood rot beneath the mounting surface
• Persistent leaks at seams mean caulk or solder joints have deteriorated beyond patching
• Paint bubbling along your siding or fascia board reveals overflow or hidden leakage

Following proper installation tips during replacement—correct pitch, secure hanger spacing—prevents these failures from recurring prematurely.

Vinyl, Aluminum, Steel, or Copper: Which Material Fits Your Home?

Choosing the right gutter material comes down to four practical factors: budget, climate, aesthetic goals, and how much maintenance you're willing to commit to. Gutter material comparisons consistently show vinyl as the most affordable and lightweight option, though it degrades faster in extreme temperatures. Aluminum strikes the best balance between cost, durability, and corrosion resistance, making it the most popular choice across homeowner preferences. Steel outperforms both in heavy snow or ice loads but demands rust prevention upkeep. Copper delivers unmatched longevity and curb appeal but carries a premium price tag. Match your material to your regional weather conditions, your home's architectural style, and your long-term maintenance capacity. That alignment determines which material genuinely fits your specific situation.

Frequently Asked Questions

Can Gutter Materials Affect Ice Dam Formation in Winter Climates?

Yes, gutter materials absolutely affect ice dam formation. Your gutter design choices directly impact winter performance — copper's thermal conductivity helps prevent ice buildup, while aluminum's lightweight flexibility can warp under ice weight. Steel's strength resists deformation better, but it's prone to corrosion. Vinyl becomes brittle in freezing temperatures, making it your worst option. You'll also want to guarantee proper insulation and ventilation to minimize ice dam risks regardless of material.

Are Certain Gutter Materials Better Suited for Wooded or Leafy Environments?

Yes, aluminum and copper gutters offer superior gutter durability in wooded environments, making them your best options. You'll find that copper naturally resists corrosion from decomposing leaves and organic debris. Aluminum handles moisture and tannins effectively without deteriorating. Both materials have lower maintenance requirements when paired with gutter guards. Avoid vinyl, as it cracks under heavy debris loads and frequent cleaning demands in leafy settings.

Do Gutter Materials Impact the Efficiency of Rainwater Harvesting Systems?

Yes, gutter materials directly impact your rainwater harvesting system's gutter performance and rainwater quality. Copper and aluminum won't leach harmful chemicals, making them ideal choices for collection systems. You'll want to avoid vinyl in high-UV environments, as it can degrade and contaminate harvested water. Galvanized steel introduces zinc runoff, which affects rainwater quality. Aluminum strikes the best balance between affordability, durability, and maintaining clean, uncontaminated water for harvesting purposes.

Can Gutters Be Painted to Match or Complement Exterior Color Changes?

Yes, you can paint gutters to match your home's exterior. Aluminum and steel gutters accept paint well, offering excellent color durability when you use exterior-grade acrylic or latex formulas. You'll need to clean, prime, and apply UV-resistant topcoats for lasting results. Vinyl gutters present challenges, requiring flexible vinyl-specific paints. Build seasonal maintenance into your schedule, touching up chips and peeling before moisture infiltrates the painted surface and causes premature deterioration.

Are Any Gutter Materials Considered More Environmentally Friendly or Recyclable?

Yes, aluminum and copper are your most environmentally friendly choices. Both materials complete a strong gutter life cycle, as they're fully recyclable at end-of-service. Copper's durability extends its lifespan up to 100 years, reducing replacement frequency. Aluminum offers sustainable options through widespread recycling programs. Avoid vinyl—it's petroleum-based and rarely recyclable. Steel gutters are recyclable but prone to rust, shortening their useful lifespan considerably.