5 Commercial Metal Roof Types – Pros & Cons

Are you seeking a durable and resistant roofing system for your commercial structure? Knowing the types of metal roofing and their pros and cons will guide you to a well-informed decision when installing or replacing your roof.

The professionals at New Image Roofing Atlanta gathered essential information about 5 types of commercial metal roofs, their advantages and disadvantages, and their expected lifespans and maintenance needs. Consider the following metal roofing systems:

Corrugated Metal Roofs

Corrugated metal roofing systems are characterized by their wavy or rippled pattern. This metal roofing type is often used in agricultural and industrial structures. However, its versatility has led to its use in commercial buildings.

Pros:

• Cost-Effective – Corrugated metal roofing is generally more affordable compared to other types.
• Quick Installation – The large, lightweight panels facilitate a faster installation process.
• Durability – Corrugated metal is resistant to harsh weather conditions, like hail and heavy snow.

Cons:

• Aesthetic Limitations – Some may find the industrial appearance less appealing for some commercial applications.
• Noise – Rain and hail can create noise on corrugated metal roofs. Additional insulation or underlayment can help mitigate this issue.

Lifespan and Maintenance – With proper installation and maintenance, corrugated metal roofs can last over 30 years. Maintenance involves periodic inspections for:

• Rust
• Loose fasteners
• Penetration boots and seals

Standing Seam Metal Roofs

Standing seam metal roofing systems feature vertical panels with raised seams connecting adjacent panels. These roofs are known for their sleek, modern appearance and are commonly installed on commercial and residential structures.

Pros:

• Weather Resistance – Standing seam roofs offer excellent resistance to rain, snow, and high winds.
• Long Lifespan – One of the longest-lasting roofing options, with a lifespan exceeding 30 years.
• Energy Efficiency – Reflective coatings and the ability to accommodate solar panels contribute to its energy efficiency.

Cons:

• Installation Complexity – Requires skilled professionals for proper installation, which can increase initial costs.
• Cost – Initial costs are higher compared to some other metal roofing options.

Lifespan and Maintenance – Standing seam metal roofs have an impressive lifespan of 30-50 years. Regular maintenance involves checking for:

• Loose fasteners
• Damaged panels
• Potential sealant issues

Metal Shingle Roofs

Metal shingle roofs mimic traditional asphalt shingles but offer metal’s durability and longevity. They come in multiple styles, including wood, slate, and tile aesthetics.

Pros:

• Aesthetic Versatility – Metal shingles can replicate the look of other roofing materials, providing diverse aesthetic options.
• Lightweight – Lighter than other metal roofing types, reducing the structural load.
• Durability – Resistant to fire, rot, and insects, with a long lifespan.

Cons:

• Cost – Metal shingle roofs can be significantly more expensive than traditional asphalt-shingle roofs.
• Installation Complexity – Like standing seam roofs, professional installation is recommended.

Lifespan and Maintenance – Metal shingle roofs can last 30 years or more. Regular inspections are crucial to address loose or damaged shingles and ensure proper sealing around flashing and penetrations.

Metal Tile Roofs

Metal tile roofing systems combine traditional tile roofing elegance with the metal’s durability. These roofs are popular in commercial settings where a classic appearance is desired.

Pros:

• Aesthetic Appeal – Provides a classic and sophisticated appearance.
• Lightweight – Lighter than traditional tile roofs, reducing structural load.
• Durable – Resistant to weather, fire, and insects.

Cons:

• Cost – Metal tile roofs can be more expensive than other metal roofing options.
• Installation Complexity – Professional installation is recommended, adding to initial costs.

Lifespan and Maintenance – Metal tile roofs can last 30 to 50 years. Regular maintenance should include:

• Checking for loose tiles
• Inspecting seals around penetrations
• Addressing potential protective coating issues

Metal Slate Roofs

Metal slate roofing systems replicate natural slate with the added metal roofing benefits, including significantly increased durability and reduced weight.

Pros:

• Aesthetic Appeal – Mimics traditional slate roofing’s elegant look.
• Lightweight – Significantly lighter than natural slate, reducing the structural load.
• Long Lifespan – Can last 40-60 years or more.

Cons:

• Cost – Metal slate roofs can be more expensive than other metal roofing options.
• Installation Complexity – Professional installation is recommended.

Lifespan and Maintenance – Metal slate roofing systems have a 40 to 60 year lifespan. Regular maintenance should include:

• Inspecting for loose or damaged slates
• Checking seals around penetrations
• Addressing potential protective coating issues

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Commercial Metal Roofing Systems

In this article, you discovered information about 5 commercial metal roofing system types, their advantages, disadvantages, expected lifespans, and maintenance recommendations.

Understanding the available metal roofing options and their qualities will guide you when determining which roofing system is most appropriate for your structure.

Ignorance to roofing options may lead you or your organization to installing an inappropriate roof for your commercial needs.

Sources:
energy.gov/energysaver/cool-roofs
engineeringcivil.org/articles/building-materials/pros-and-cons-of-metal-roofs-in-commercial-building/
nachi.org/roofs.htm