Polycarbonate vs. Metal Roofing: Which Is Better?

Introduction to Material Comparison

When it comes to roofing solutions, both polycarbonate and metal have proven to be strong contenders—each offering unique advantages depending on the application. Choosing between them depends on several factors such as climate, durability, design preferences, and overall function. In this comparison guide, we’ll break down the pros and cons of polycarbonate and metal roofing to help you decide what fits your needs best.

For residents of Santa Monica, CA, the coastal environment introduces specific considerations like UV exposure, salt air, and occasional storm impact, making material choice more than just a matter of appearance.

Polycarbonate Roofing: Lightweight and Versatile

Advantages of Polycarbonate

Polycarbonate roofing panels are made from thermoplastic polymers and are favored for their transparency, impact resistance, and UV protection. Often used for greenhouses, patios, and sheds, polycarbonate roofs are lightweight and easy to install.

• UV Resistance: Many polycarbonate panels come with built-in UV protection, helping to block harmful rays while allowing natural light.

• Lightweight: Great for structures that can’t support heavy roofing materials.

• Impact Resistant: Resilient to hail and falling debris.

• Affordable: Generally less expensive than metal and easier to transport and handle.

Limitations of Polycarbonate

• Limited Lifespan: Typically lasts 10–20 years, depending on quality and exposure.

• Susceptible to Scratching: Can be damaged by abrasives or falling debris.

• Not Ideal for Whole Roofs: While perfect for certain applications, it lacks the structural integrity needed for full residential roofing.

Metal Roofing: Durable and Long-Lasting

Advantages of Metal

Metal roofing—available in aluminum, steel, or copper—is known for its durability, weather resistance, and modern aesthetics. It’s a popular choice for both residential and commercial buildings.

• Longevity: Can last 40–70 years with proper maintenance.

• Fire and Wind Resistant: Holds up well in extreme conditions.

• Low Maintenance: Requires less upkeep than polycarbonate.

• Recyclable and Sustainable: Environmentally friendly with energy-saving coatings.

Limitations of Metal

• Higher Cost: Metal roofing comes with a steeper upfront investment.

• Noise Factor: Rain and hail can be loud without soundproofing underlayment.

• Potential for Denting: Aluminum in particular may dent under heavy impact.

Ideal Use Cases

• Use Polycarbonate: For carports, skylights, patios, greenhouses, and sunrooms.

• Use Metal Roofing: For full home or garage roofs, commercial buildings, and any structure requiring longevity and weather resistance.

Climate Considerations in Santa Monica

The sun and salt-rich air in Santa Monica are harsh on unprotected materials. Polycarbonate performs well in UV resistance but may degrade faster than metal over time. Metal roofs, especially those coated by brands like Malarkey or Owens Corning, are engineered to resist corrosion and reflect heat, making them ideal for coastal living.

Working with Trusted Professionals

Choosing the right roofing material is only part of the equation. Proper installation ensures longevity and safety. Economy Roofing offers professional consultation and expert roofing services tailored to local needs. Their team can recommend the best material based on your structure and budget.

Final Verdict: Which Is Better?

There’s no one-size-fits-all answer. Polycarbonate excels in specialized, light-duty uses where light transmission and affordability matter. Metal roofing, on the other hand, is superior for structural durability, long-term savings, and full-building protection.

For Santa Monica homeowners seeking lasting performance and value, metal roofing is typically the smarter investment—especially when backed by top-tier products and expert installation.

Read also our blog: Inspiration and Options for Garage Roofing Projects