Types of Metal Siding Used in Commercial Buildings

Metal siding continues to be one of the most durable and weather-resistant exterior options for commercial buildings in the Pacific Northwest. From warehouses and manufacturing facilities to office parks and multi-family properties, metal systems offer exceptional longevity, low maintenance, and a modern architectural appeal. Below are the primary types of commercial metal siding materials, along with their key advantages and ideal applications.

Steel Siding

Steel siding is the most commonly used commercial metal siding material in the Pacific Northwest. Typically manufactured as galvanized or Galvalume steel, it’s engineered with a corrosion-resistant coating that protects against rust and moisture. Steel siding is available in several profiles, including ribbed panels, corrugated panels, standing seam, and smooth architectural panels.

  • Pros: Outstanding strength, impact resistance, and fire protection. Highly recyclable and available in a wide range of colors and finishes, such as Kynar 500 or SMP coatings that prevent fading and corrosion.
  • Cons: Heavier than aluminum and may corrode if the protective finish is damaged.
  • Best for: Industrial buildings, warehouses, and modern commercial properties that require superior durability and longevity.

Aluminum Siding

Aluminum is a lightweight and corrosion-resistant material that performs well in coastal or marine environments. It’s naturally rust-proof, making it ideal for structures exposed to high humidity and salt air.

  • Pros: Resistant to rust and easy to install. Reflects heat and offers excellent protection in damp conditions.
  • Cons: Softer metal that can dent more easily than steel.
  • Best for: Waterfront properties, marinas, or commercial projects near the Puget Sound shoreline.

Copper Siding

Copper siding is used in specialized or architectural projects where aesthetics and prestige are priorities. It naturally oxidizes to form a protective greenish patina over time.

  • Pros: Distinctive appearance, natural corrosion resistance, and unmatched longevity.
  • Cons: Very expensive and typically used for accent walls or architectural features.
  • Best for: Luxury developments, landmark commercial buildings, and high-profile civic structures.

Zinc Siding

Zinc is a premium metal siding choice known for its sleek, modern look and remarkable lifespan. Over time, it develops a protective patina that self-heals minor scratches and resists corrosion naturally.

  • Pros: Extremely long-lasting (often 60+ years) and low-maintenance with self-healing properties.
  • Cons: Higher upfront cost and gradual color change as patina forms.
  • Best for: High-end commercial, civic, or institutional buildings seeking a sophisticated architectural finish.

Corrugated Metal Panels

Corrugated metal refers to the wavy or ribbed profile used for added strength and water-shedding capability. It’s one of the most recognizable and economical metal siding styles for commercial construction.

  • Pros: Cost-effective, lightweight, and durable under heavy rain or snow.
  • Cons: Industrial appearance and potential debris buildup in overlaps if not detailed correctly.
  • Best for: Warehouses, agricultural facilities, storage centers, and light industrial buildings.

Standing Seam Metal Panels

Standing seam metal siding is a premium option featuring concealed fasteners and vertical seams that provide a clean, modern appearance. It’s available in steel, aluminum, zinc, and copper.

  • Pros: Exceptional weather protection, watertight seams, and modern architectural design.
  • Cons: Higher installation cost and specialized labor required.
  • Best for: Modern office buildings, multi-family properties, and mixed-use developments.

Most Common Metal Siding in Redmond and the Pacific Northwest

In Redmond and the Puget Sound region, the most widely used metal siding material is pre-finished Galvalume steel panels, typically installed in standing seam or ribbed/corrugated profiles. This material provides the best balance of performance, appearance, and value for commercial projects.

Why it’s preferred in the PNW:

  • Exceptional resistance to constant rainfall and humidity.

  • Protective coatings like Kynar 500 prevent rust and color fading.

  • Performs well against moss, mildew, and salt air exposure.

  • Readily available from regional suppliers such as Nu-Ray Metals, Metal Sales, and ASC Building Products.

Most commercial projects use 24- to 26-gauge Galvalume steel panels for their strength and long-term reliability. This configuration provides an excellent balance of low maintenance, weather resistance, and clean, modern aesthetics—qualities that are especially important for commercial and multi-use properties throughout Western Washington.

At Landmark Roofing & Siding, we use Nu-Ray Metals siding systems, manufactured locally in Auburn, WA. Nu-Ray’s pre-finished steel panels are engineered specifically for the Pacific Northwest climate and feature high-performance coatings that resist corrosion, color fading, and moisture intrusion. Their proven durability and local availability make them a trusted choice for commercial projects that demand both long-term performance and architectural appeal.

What Sets Metal Siding Apart?

Compared to vinyl and wood, metal siding is a standout. Vinyl may be cheap upfront, but it pales in durability, weather resistance and impact damage. Wood might win aesthetic points but struggles with maintenance—it’s prone to rot, warping, and pest damage.

Metal, on the other hand, offers the best of both worlds. With its sleek, modern appearance and superior resilience, it’s a no-brainer for commercial properties. To see how metal siding stacks up against other materials, explore our overview of top commercial siding options and their pros and cons.

Unmatched Durability Against Severe Weather

One of the greatest advantages of metal siding is its ability to withstand almost anything:

  • Hailstorms: Metal siding is built to take a beating, offering robust protection against hailstorms that can easily damage vinyl or wood.
  • Heavy Rain and Snow: Since metal doesn’t soak up water, you won’t have to stress about mold or rot ruining your home, even during the heaviest rain or snow.
  • Fire Resistance: Unlike wood, which can catch fire easily, steel siding is naturally fire-resistant, giving you an added layer of security, especially in wildfire-prone areas.
    Gale-Force Winds: Thanks to its superior strength, metal siding stands strong against even the harshest winds, keeping your building safe no matter how extreme the weather gets

For large-scale commercial projects or properties in climates that endure harsh winters, hurricanes, or heavy rainfall, metal siding delivers performance and reliability unmatched by other materials.

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Focused on Energy Efficiency

Keeping energy costs low is a top concern for commercial businesses, and metal siding shines in this area. Today’s steel siding offers advanced energy-efficient technology to help achieve big savings.

  • Cool-Paint Technology
    Modern metal siding often features cool-paint coatings that reflect radiant heat away from buildings. The result? Cooler indoor temperatures, especially in hot summers, which reduces reliance on air conditioning systems. This reflective feature not only lowers the heat load but also prolongs the life of your siding by reducing heat-related wear and tear.
  • Insulation Benefits
    Pair your metal siding with a thick layer of insulation, and your building gets even more protection. Insulation under metal siding minimizes air leakage, helping regulate indoor temperatures year-round. You’ll find your heating and cooling systems working less overtime, which translates to lower energy bills.
  • Benefits for Commercial Properties
    For commercial buildings like warehouses or office spaces, regulating temperatures is vital for both comfort and operations. Energy-efficient metal siding reduces HVAC demand, keeping operational costs down while ensuring the building’s interior stays stable over time.
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Low Maintenance, No Hassle

Unlike other materials like wood that require regular maintenance or repairs, metal siding offers a virtually hassle-free experience.
What Metal Siding Avoids:

  • Rot, Decay, and Insect Damage: Metal is resistant to moisture, so it won’t rot, decay, or attract insects.
  • Warpage or Shrinking: Metal siding maintains its form and does not warp with temperature or humidity changes.
  • Fading: Modern metal siding, especially with protective coatings or cool-paint finishes, resists fading from UV exposure better than wood or vinyl.
  • Impact Resistance: Metal siding is much more resilient to damage from debris or hail compared to vinyl, although it may dent with heavy impact.
    For commercial building owners or managers short on time, this low-maintenance solution saves effort and long-term maintenance costs.
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Why It Matters for Commercial Buildings

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Long Term Cost-Effectiveness

Commercial properties are large spaces with significant upkeep costs. Choosing an efficient, long-lasting material like metal siding ensures your siding investment pays off for years rather than requiring frequent repairs or replacements.

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Energy Savings

Every square foot of savings counts when you’re running a large operation. Lowering energy bills for big buildings—like warehouses, manufacturing plants, or office complexes—makes a noticeable difference in the bottom line.

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Design Versatility

Metal siding isn’t just about functionality—it’s stylish too. It’s available in different finishes, textures, and colors that complement both modern and industrial designs, making it suitable for a variety of commercial aesthetics.

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Time is Money

Commercial property owners or managers often don’t have the luxury of constant maintenance work. Metal siding’s durability and low demand for repairs free you up to focus on what matters most—running your business.

Contact Landmark Roofing & Siding For Commercial Metal Siding Solutions

Premium metal commercial siding is the ultimate choice for business owners and contractors. Contact Landmark Roofing and Siding today to explore your options and inquire about how our expert solutions can elevate your property.

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