In 2023, the commercial roofing market was estimated at USD 11.9 billion. It’s expected to reach USD 18.13 billion by 2030.
It shows the growing demand and supply of durable and energy-efficient roofing solutions. However, the variety of options also makes choosing the right materials and systems challenging. In this guide, we’ll share the best options for your commercial building!
Types of Commercial Roof Materials
1. Ethylene Propylene Diene Monomer (EPDM)
EPDM is a single-ply roofing membrane used in commercial flat roofs, also called rubber roofing.
Pros
- The material is extremely inexpensive. It is also lightweight and easy to install, so there’s no need for roof deck reinforcement, and installation costs are lower.
- EPDM roofs are durable, with up to 20 years of life expectancy, and don’t get scratched/scruffed easily!
- UV rays don’t damage it easily.
Cons
- EPDM isn’t aesthetically pleasing and appears like unfurled inner tubes.
- Mostly available in black, it absorbs sun rays and heat.
- Hail may puncture it.
2. Thermoplastic Polyolefin (TPO) Roof
TPO is another of the most popular types of commercial flat roofs. It’s also a single-ply membrane made of polypropylene and ethylene propylene rubber.
Pros
- It’s energy-efficient and more cost-effective than EPDM.
- TPO is highly reflective, reducing heat absorption in the building.
- It can resist corrosion, fire, wind, UV rays, chemical exposure, punctures, breakdown, mildew, and algae growth.
Cons
- The material is laminated, so there might be shrinking, deterioration, cracking, and crazing.
3. Metal Roofing
Metal roofing is another popular choice among commercial buildings. It’s available in copper, steel, and aluminum.
Pros
Metal roofing, especially copper, is easy to install and maintain.
- It’s sustainable and energy-efficient.
- Metal lasts up to 40-70 years, making it cost-effective.
- Available in a range of colors and styles.
- It endures storms, heavy rains, and strong winds and is fireproof and weather-resistant.
Cons
- It might be noisy.
- Fallen hail and branches may cause dents.
4. Asphalt Rolled Roofing
Asphalt rolled roofs are common for low-slop roofed buildings. These use the same materials as in asphalt shingles.
Pros
- The material is inexpensive and easy to install, saving installation costs.
- It is lightweight.
- It’s widely available.
Cons
- The lifespan is low: around 10 years.
- There’s no insulation.
5. Polyvinyl Chloride (PVC)
PVC roofing is another single-ply membrane material popular in buildings exposed to oil and chemicals.
Pros
- The material is durable
- It’s resistant to chemicals, oils, and grease.
- Being highly reflective, it’s energy efficient.
- It withstands fire, weather, and mold.
Cons
- Installation and repair are expensive.
- It may shatter in cold or under high foot traffic.
Types of Commercial Roof Systems
1. Single-Ply Roofing Systems
Single-ply roofing is the most popular system in commercial and residential buildings. Made of rubber or synthetic polymers, it includes applying a single membrane layer, such as EPDM, TPO, and PVC, on a roof substrate.
Pros
- These are easy and quick to install, hence cost-efficient.
- They can withstand varying climate conditions and chemicals.
- They have strong seams, making them waterproof.
Cons
- Sharp and heavy objects may puncture them.
- Seams may wear out with time.
2. Built-Up Roofing (BUR) Systems
BUR is another of the popular types of roof systems and has been around for 100+ years. These systems use multiple layers of bitumen/asphalt and fabrics (fiberglass/felt) to build a thick and waterproof membrane.
Pros
- They are durable and can withstand extreme foot traffic.
- The systems `are waterproof and have insulation properties.
Cons
- Being heavy, these systems need stronger structural support.
- Installation is time-consuming and more expensive.
3. Modified Bitumen (MB) Roofing System
MB roofing systems are made of asphalt and fiberglass. They are great for flat roofing decks and structures. They are also installed in several layers.
Pros
- These don’t puncture or tear easily and are weather and UV-resistant.
- They are low-maintenance and easy to repair.
- MB systems offer insulation and waterproofing.
Cons
- They are heavy and need reinforced structural support.
- Specialized equipment is needed for installation, making it expensive.
4. Spray Polyurethane Foam (SPF) Roofing System
In SPF, a liquid is applied on the roof substrate. It expands 30 times and turns into a solid foam layer. Further, protective acrylic or silicone coatings are applied to the foam.
Pros
- The system offers insulation, reduces heating and cooling expenses, and thus is energy-efficient.
- It’s lightweight, lowering installation costs.
Cons
- Regular maintenance is required.
How to Choose Among the Best Types of Commercial Roof material and system?
To choose the right commercial roof, consider these tips:
Budget: Consider both the upfront and long-term maintenance and energy expenses. Metal roofing has high initial costs but offers lasting savings. Single-ply systems need less maintenance, but BUR needs frequent maintenance.
Climate: Reflective materials, including TPO and PVC, are ideal for hot climates. EPDM and metal are better for extreme weather.
Building Structure: If the building’s load-bearing capacity is low, stick to lighter options like SPF and TPO. BUR and MB systems need structural support.
However, these aren’t enough to make a well-informed decision. So, if you need consultation for quality-grade roofing materials, systems, and roofing contractors, connect with us immediately. With years of experience, our team will offer the best results for you!