Metal roofing has become a popular option for commercial properties across Detroit and Southeast Michigan. Its reputation for longevity, durability, and modern aesthetics makes it a strong competitor to traditional roofing systems. With lifespans often exceeding 40 years, metal roofs can seem like the perfect choice.
However, no roofing system is flawless. At Motor City Roofers, we believe property owners deserve a clear understanding of both the benefits and the challenges of metal roofing before making a decision. While metal systems can provide outstanding protection, there are certain concerns you should be aware of to ensure you get the most from your investment.

1. Higher Upfront Costs
One of the first concerns many property owners encounter is the initial cost of a metal roof. Compared to asphalt shingles or some membrane systems, metal panels typically cost more to manufacture and install.

• Why: Materials like steel, aluminum, or copper are more expensive, and installation requires specialized expertise.
• Impact: Businesses may face sticker shock when evaluating quotes.

Our Advice: Look at life-cycle costs, not just upfront expense. Metal roofs often last twice as long as conventional systems and require less frequent replacement, which can make them more cost-effective in the long run.

2. Expansion and Contraction in Detroit’s Climate
Detroit’s weather brings sweltering summers, freezing winters, and frequent temperature swings. Metal naturally expands and contracts with these changes.

• Problem: If not properly installed, this thermal movement can stress fasteners and seams, leading to leaks over time.
• Visible Signs: Buckling, oil-canning (waviness in flat panels), and seam separation.

Our Approach: At Motor City Roofers, we use engineered fastening systems and sliding clips to allow for natural movement while maintaining waterproof integrity.

3. Noise Concerns
One common complaint about metal roofing is noise during rain, hail, or strong winds.

• Without insulation, the sound can be amplified, making it distracting for building occupants.
• Commercial buildings with open ceiling designs may experience this more than those with drop ceilings.

Solution: Proper underlayment, insulation, and acoustical barriers can reduce noise significantly, ensuring a quieter interior environment.

4. Denting and Hail Damage
While metal roofs are strong, they’re not immune to denting.

• Risk Factors: Large hailstorms, falling branches, or heavy foot traffic.
• Outcome: Dents may not always compromise waterproofing but can affect appearance, and in severe cases, structural integrity.

Tip: Choosing thicker-gauge panels improves resistance to dents. Some coatings and finishes also minimize visible damage.

5. Corrosion and Rust
Although modern metal roofing systems are coated to resist corrosion, rust remains a concern—especially in industrial areas like Detroit, where pollution and acid rain can accelerate wear.

• Vulnerable Areas: Cut edges, fastener heads, or scratches where protective coating is compromised.
• Long-Term Impact: Rust can spread if not treated, shortening roof lifespan.

Our Practice: We recommend corrosion-resistant materials such as galvanized steel with protective coatings or aluminum for properties near moisture-rich environments. Regular inspections help catch problems early.

6. Installation Complexity
Metal roofing installation requires precise workmanship. A poorly trained contractor can create more problems than the system solves.

• Challenges:
  • Improper fastening leading to leaks.
  • Inadequate flashing around penetrations.
  • Incorrect panel alignment causing aesthetic issues.

Why It Matters: A metal roof is only as good as its installer. That’s why it’s essential to partner with experienced, certified contractors like Motor City Roofers who specialize in commercial systems.

7. Oil-Canning (Panel Distortion)
Oil-canning is a cosmetic issue where flat sections of metal panels develop visible ripples or waviness.

• Cause: Stress during manufacturing, handling, or installation.
• Impact: Does not typically affect performance but can reduce aesthetic appeal.

Prevention: Using thicker panels, proper fastening systems, and ribbed panel designs help reduce oil-canning visibility.

8. Potential for Leaks if Not Maintained
Though durable, metal roofs still require regular maintenance. Common leak sources include:

• Failing seams or improperly sealed fasteners.
• Damaged flashing around vents, HVAC units, or skylights.
• Punctures from foot traffic.

Maintenance Strategy: Annual inspections, especially before and after Detroit’s winter, can prevent small issues from escalating.

9. Slippery Surface Hazards
Metal roofing can be extremely slippery when wet or covered with snow and ice.

• Risk: Maintenance crews face hazards when walking on the surface, making fall protection critical.
• Concern for Detroit: Snow accumulation increases this risk significantly in winter months.

Best Practice: Limit roof access, use designated walk pads, and rely on trained professionals for inspections and snow removal.

10. Color Fading and Finish Wear
Metal roofs often feature painted finishes for aesthetics and UV protection. Over time, these coatings can fade due to:

• Harsh UV exposure in summer.
• Acid rain or pollution.
• Natural weathering.

While this doesn’t always impact performance, it can affect property appearance, especially for retail or office buildings where aesthetics matter. High-quality finishes such as Kynar 500® coatings offer better long-term resistance.

11. Compatibility with Other Systems
Not all building designs are suited for metal roofing. For example:

• Complex Rooflines: May make installation challenging or costly.
• Retrofits: Adding metal panels over existing systems requires structural analysis to ensure the building can handle the weight.
• Integration with Equipment: HVAC curbs and penetrations need specialized flashing solutions.

Motor City Roofers evaluates each property to determine if a metal roof is truly the best option or if another system may be more practical.

12. Fire and Safety Considerations
While metal roofs are non-combustible, they may transmit heat more quickly to supporting structures if insulation is inadequate. In rare cases, improperly grounded metal roofs can also be affected during lightning strikes.
Prevention: Proper insulation, underlayment, and lightning protection systems eliminate these concerns.

Conclusion: Metal Roofs Require Expert Planning and Care
Metal roofs offer durability, longevity, and energy efficiency—making them an excellent choice for many Detroit commercial buildings. But they are not without challenges. Concerns such as higher upfront costs, noise, denting, corrosion, and installation complexity should be carefully considered before committing.
At Motor City Roofers, our goal is to ensure property owners understand both the advantages and potential drawbacks of their roofing system. With proper planning, quality materials, and expert installation, most concerns can be minimized or eliminated—allowing you to enjoy decades of performance from your roof.

📞 Contact Motor City Roofers Today
Serving Detroit and Southeast Michigan, we provide expert guidance, inspections, and installations for all commercial roofing systems, including metal. Let us help you weigh the pros and cons so your roofing investment delivers maximum value.