3 Common Types of Commercial Roofing Systems

When evaluating a roofing solution for your business, understanding the different types of commercial roofing available is key to making the right decision. Commercial roofing systems are built to withstand unique stressors like flat roof designs, high foot traffic, and mechanical equipment loads. For business owners in LaPorte and surrounding areas, selecting the right roof can help reduce maintenance costs, improve energy efficiency, and extend the life of your property.

This guide explores the three most common types of commercial roofing systems used in Indiana and beyond.

• Durability matters: Different materials offer varying levels of strength and weather resistance
• Energy efficiency: Some systems provide better insulation or reflectivity
• Cost vs longevity: Upfront and long-term value should both be considered

Let’s explore the top roofing options that businesses rely on to protect their assets.

3 Commercial Roofing Options

Commercial buildings typically have low-slope or flat roofs, which require specialized materials and installation methods compared to residential roofs. A well-installed commercial roof must not only provide protection from the elements but also support HVAC systems and foot traffic.

The most popular commercial roofing systems are single-ply membranes, built-up roofs (BUR), and metal roofing. Each system comes with its own pros, cons, and best-use scenarios.

1. TPO (Thermoplastic Polyolefin) Roofing

TPO is one of the most widely used single-ply roofing systems in the commercial market. It offers a balance of cost, durability, and energy efficiency, making it a go-to option for many flat or low-slope roofs.

TPO membranes are made from a blend of rubber and plastic polymers. They are installed in large rolls that are heat-welded at the seams, creating a waterproof seal that resists leaks.

• Affordability: TPO is typically more cost-effective than other single-ply options
• Reflectivity: White TPO membranes reflect UV rays, lowering cooling costs
• Low maintenance: Seams are heat-welded and resistant to punctures
• Flexibility: Suitable for roofs with irregular shapes or penetrations

TPO roofing is an ideal choice for commercial buildings in LaPorte that prioritize energy savings and have minimal roofing complexity.

2. Built-Up Roofing (BUR)

Built-up roofing, also known as tar and gravel roofing, has been a staple of commercial roofing for over a century. It involves layering alternating plies of bitumen (asphalt or coal tar) with reinforcing fabrics like fiberglass.

The system is then topped with a gravel layer that protects the surface from UV rays, weather, and physical damage.

• Proven performance: Decades of reliable service in commercial applications
• Water resistance: Multiple layers offer strong protection against leaks
• Fire resistance: Surface gravel adds a layer of fire protection
• Durability: Long-lasting when properly maintained

BUR is a great fit for LaPorte buildings with very low-slope roofs or businesses that require robust waterproofing. It does require more time and labor to install compared to other systems.

3. Standing Seam Metal Roofing

Metal roofing is growing in popularity for commercial properties due to its longevity and minimal maintenance needs. Standing seam metal roofs consist of long panels that run vertically, with seams raised above the panel level to keep moisture out.

This system can be installed over steep or low-slope roofs and is often chosen for warehouses, retail spaces, or office buildings seeking a sleek, modern appearance.

• Lifespan: Metal roofs can last 40–60 years with minimal upkeep
• Strength: Withstands high winds, snow loads, and thermal expansion
• Sustainability: Many panels are made from recycled materials and are fully recyclable
• Aesthetics: Clean lines and color variety suit modern designs

For business owners in LaPorte, standing seam metal roofing is a smart investment when visual appeal and long-term durability are priorities.

Comparing Commercial Roofing Systems

Each roofing type offers its own set of benefits, and the best option often depends on your building’s size, shape, and intended use. Here’s a quick side-by-side comparison:

Choosing the right system depends on your long-term goals. A short-term lease or small building might benefit from TPO, while a permanent facility may justify the investment in metal roofing.

Important Considerations Before Installation

Before you select a commercial roofing system, work with a contractor to assess your specific needs. The following factors will help guide your decision:

• Roof slope and drainage: Some systems perform better on low-slope designs
• Local climate: Indiana winters and summer heat can impact performance
• Energy goals: Cool roofing options help reduce HVAC costs
• Budget and timeline: Balance installation cost with return on investment
• Building use: Warehouses, offices, and retail stores have different needs

A roofing professional can help you weigh these considerations and choose a system that fits both your budget and long-term maintenance expectations.

Why LaPorte Businesses Choose Discount Roof

At Discount Roof, we provide commercial roofing solutions tailored to your property’s size, structure, and use. Our expert team works with business owners across LaPorte and surrounding areas to install reliable, cost-effective roofing systems with minimal disruption.

Whether you’re re-roofing a warehouse, upgrading a retail space, or building from the ground up, we’re here to protect your business.

Upgrade Your Commercial Roof With Confidence

Understanding the types of commercial roofing available helps you make the best decision for your building. TPO, built-up roofing, and standing seam metal all provide reliable protection, but the right fit depends on your goals, structure, and budget.

Contact Discount Roof today to schedule your free commercial roofing estimate. We’ll help you choose the right system, install it with care, and keep your business covered for years