Different Types of Commercial Roofing Systems

The type of roofing for a commercial building can significantly impact both its lifespan and energy efficiency. Depending on your business needs, local climate conditions, and budget, selecting the right commercial roofing option is essential.

Whether you prioritize durability, optimal thermal insulation, or an aesthetically pleasing design, multiple options are available. In this guide, explore the different types of commercial roofs, their benefits, and key factors to consider when making your choice.

4 Types of Commercial Roofs in North America

Elastomeric Membrane Roofing (TPO, EPDM)

Elastomeric membrane roofing, including materials such as TPO (Thermoplastic Polyolefin) and EPDM (Ethylene Propylene Diene Monomer), is an increasingly popular solution for commercial buildings. These membranes are typically installed in a single layer over a flat structure, making them ideal for large industrial and commercial roofs.

Advantages

Durability: TPO and EPDM membranes are long-lasting and highly resistant to UV rays, harsh weather, and moisture.
Energy Efficiency: Reflective membranes like TPO help lower energy consumption by reducing heat absorption.
Low Maintenance: These roofs require minimal upkeep, mainly periodic inspections to remove debris.

Disadvantages

Specialized Installation: Proper installation requires experienced professionals.
Challenging Repairs: While durable, repairing punctures or tears in these membranes can be complex.

Metal Roofing (Steel, Aluminum)

Metal roofing, made from steel or aluminum, is a durable and resilient option widely used in commercial settings. These roofs often consist of corrugated panels or sheet metal secured to a metal or wooden framework.

Advantages

Exceptional Durability: Metal roofs can withstand harsh weather and last several decades with minimal repairs.
Fire Resistance: Being non-combustible, metal roofing provides excellent fire protection.
Modern Aesthetic: Metal roofs offer a sleek, industrial look, suitable for contemporary businesses.

Disadvantages

Higher Initial Cost: While highly durable, the upfront cost is greater than some alternatives.
Potential for Noise: Without proper insulation, metal roofs can be noisy during heavy rain or hail.

Green Roofing

Green roofs, also known as vegetative roofs, consist of a waterproofing membrane covered with soil and vegetation. This eco-friendly roofing system is particularly beneficial in urban environments.

Features

Eco-Friendly: Green roofs reduce urban heat islands, improve air quality, and manage stormwater runoff efficiently.
Thermal & Acoustic Insulation: They provide superior insulation, lowering heating and cooling costs.

Considerations

Weight Considerations: The added weight may require structural reinforcements.
Regular Maintenance: Vegetation upkeep is essential to prevent overgrowth and drainage blockages.

Sloped Roofing (Shingles or Tiles)

Sloped roofs are a more traditional option often seen on smaller commercial buildings or converted residential properties. These roofs can be covered with asphalt shingles, clay tiles, or slate.

Best for:

Small commercial buildings like boutiques, cafés, and restaurants.
Architectural styles requiring a classic or historic appearance.

Advantages

Aesthetic Appeal: Enhances the building’s curb appeal, making it more inviting to customers.
Superior Water Drainage: Sloped roofs naturally direct rainwater away, reducing leak risks.

Disadvantages

Higher Maintenance Needs: Shingles and tiles may require frequent replacement.
Less Suitable for Large Commercial Buildings: Due to space and weight constraints.

How to Choose the Best Commercial Roofing Option?

Budget & Long-Term Costs

One of the most critical factors in selecting commercial roofing is the overall cost—not just the initial investment but also long-term maintenance and repair expenses.

Initial Costs

Metal and green roofs have higher upfront installation costs but offer long-term savings.
Shingle or asphalt roofing is more affordable initially but requires more frequent repairs.

Maintenance Costs

Low maintenance: TPO, EPDM, and metal roofing require minimal upkeep.
Higher maintenance: Sloped shingle roofs need periodic inspections and replacements.

Durability & Return on Investment

A durable roofing system reduces long-term expenditures by minimizing repairs and lowering energy costs.

Metal and TPO roofing can last over 30 years with minimal issues.
Shingles and tile roofs may need repairs every 10-15 years due to weather-related wear.

Weather & Environmental Considerations

Your local climate plays a significant role in determining the best commercial roof for your building.

Hot & Sunny Climates:

Reflective TPO roofing reduces heat absorption and lowers cooling costs.

Cold & Snowy Regions:

Metal roofs help with snow shedding, preventing ice buildup.
Sloped roofs allow for effective snow and water drainage.

Humid & Rainy Areas:

Metal and membrane roofs are excellent for preventing leaks.

Maintenance & Longevity

A commercial roofing system should be durable and easy to maintain to avoid unnecessary expenses.

Low-Maintenance Options:

TPO, EPDM, and metal roofing require only periodic inspections.

Higher-Maintenance Roofs:

Shingle and tile roofs may need frequent repairs due to wind or impact damage.

Aesthetics & Business Image

Your roof is one of the most visible elements of your building. Choosing the right material can enhance your brand identity and customer perception.

For modern, industrial businesses: Metal or flat membrane roofs provide a sleek, contemporary look.

For eco-conscious brands: Green roofs showcase environmental responsibility.

For small businesses and heritage buildings: Sloped shingle or tile roofs complement classic architectural styles.

Comparison of Commercial Roofing Options

Roof Type	Advantages	Disadvantages
TPO/EPDM Roofing	Long lifespan, UV-resistant, low maintenance, energy efficient	Higher upfront cost, complex repairs
Metal Roofing	Extremely durable, fire-resistant, modern look	Expensive installation, potential for noise without insulation
Green Roofing	Environmentally friendly, excellent insulation	High initial cost, requires maintenance
Shingle/Tile Roofing	Classic aesthetics, good water drainage	Frequent maintenance, limited for large buildings

Find the Perfect Commercial Roof with Our Experts

At Duro-Toit, we provide customized roofing solutions tailored to your needs in durability, aesthetics, and budget. Our expert team ensures high-quality installations and professional maintenance to maximize the longevity of your roof.

Trust our roofing specialists to guide you through your commercial roofing project. We prioritize efficiency, reliability, and industry-leading craftsmanship.

Contact us today to discuss your project!