Commercial roofing may seem similar to residential roofing, but it comes with unique requirements and challenges. Understanding the differences between commercial and residential roofing can help property owners make informed decisions and ensure their roofs receive the specialized care they need. In this article, we’ll explore what makes commercial roofing distinct, common materials used, and essential maintenance practices to help extend the lifespan of a commercial roof.
What Sets Commercial Roofing Apart?
Commercial roofing differs from residential roofing in several ways, including design, materials, and installation methods. These differences stem from the unique needs and functions of commercial buildings, which often house heavy machinery, HVAC units, and large structural spans that require additional support and insulation.
Key Differences in Design and Function:
- Flat or Low-Sloped Roofs: Most commercial roofs are flat or have a low slope, which simplifies the installation of equipment but also requires specific materials and drainage solutions to prevent water pooling.
- Greater Square Footage: Commercial buildings usually have larger roof areas, which means the materials used must withstand greater exposure to weather and environmental stressors.
- Different Load Requirements: Unlike residential roofs, commercial roofs must bear the weight of equipment like HVAC systems, exhaust fans, and solar panels.
- Fire and Chemical Resistance: Many commercial roofs are exposed to chemicals and high temperatures, so fire and chemical resistance are crucial factors in material selection.
Popular Materials Used in Commercial Roofing
Commercial roofing materials are chosen based on durability, cost, and compatibility with the building’s design. Each material has its own set of benefits and limitations, so understanding these options can help property owners choose the best fit for their needs.
1. TPO (Thermoplastic Polyolefin)
TPO is a single-ply roofing membrane known for its energy efficiency, durability, and affordability. It’s resistant to UV rays, which helps reduce cooling costs and is a popular choice for flat roofs.
- Pros: Energy-efficient, affordable, easy to install.
- Cons: Can be prone to punctures and requires regular inspections to prevent damage.
- Best For: Flat or low-slope roofs in hot climates.
2. EPDM (Ethylene Propylene Diene Monomer)
EPDM, commonly known as rubber roofing, is valued for its durability and ability to withstand extreme temperatures. It’s flexible and can last up to 30 years with proper maintenance.
- Pros: Long-lasting, resistant to UV rays and weather changes, flexible.
- Cons: Black EPDM can absorb heat, leading to higher cooling costs in warmer climates.
- Best For: Large commercial roofs in various climates, especially those that experience extreme weather fluctuations.
3. PVC (Polyvinyl Chloride)
PVC roofing is another single-ply membrane that offers excellent resistance to chemicals, making it a common choice for restaurants and industrial buildings.
- Pros: Chemical-resistant, fire-retardant, low maintenance.
- Cons: Higher initial cost, less flexible in colder climates.
- Best For: Restaurants, manufacturing facilities, and buildings in industrial areas.
4. Metal Roofing
Metal roofs are durable, energy-efficient, and can last up to 50 years. They’re commonly made from materials like aluminum, steel, or copper and are known for their ability to withstand severe weather.
- Pros: Long lifespan, recyclable, energy-efficient.
- Cons: Higher upfront cost, noisy during rain, prone to corrosion if not properly maintained.
- Best For: Buildings in areas with heavy rainfall or snow, and those seeking a long-term investment.
5. Built-Up Roofing (BUR)
Built-up roofing, commonly referred to as “tar and gravel” roofing, is made up of alternating layers of bitumen and reinforcing materials, making it highly durable and resistant to heavy foot traffic.
- Pros: Highly durable, resistant to UV and water damage, excellent insulation.
- Cons: Heavy, requires skilled installation, emits strong fumes during installation.
- Best For: Flat roofs with high foot traffic, such as warehouses and industrial buildings.
Maintenance Tips for Commercial Roofs
Maintaining a commercial roof requires a proactive approach to prevent costly repairs and extend the roof’s lifespan. Here are some essential maintenance tips to keep in mind:
1. Schedule Regular Inspections
Regular inspections are key to identifying minor issues before they become major problems. Ideally, commercial roofs should be inspected at least twice a year, in the spring and fall, and after any significant weather event.
- Tip: Schedule bi-annual inspections with a trusted roofing professional, like Coons Roofing, who understands the specific needs of commercial roofing. During inspections, check for signs of wear, punctures, ponding water, and damage to flashing.
2. Keep the Roof Clean
Debris, dirt, and organic matter can accumulate on flat or low-sloped commercial roofs, leading to blocked drains and water pooling. Keeping the roof clean prevents these issues and reduces the risk of damage from moss, algae, or mold.
- Tip: Schedule regular cleaning to remove leaves, branches, and other debris. Make sure roof drains and gutters are clear to prevent water buildup.
3. Monitor for Ponding Water
Flat and low-sloped roofs are susceptible to water pooling, which can lead to leaks and structural damage over time. To prevent ponding, ensure the roof has proper drainage and inspect it after heavy rains.
- Tip: If ponding water is a recurring issue, consult with a roofing expert. Coons Roofing can assess and address drainage problems, ensuring your roof remains watertight.
4. Protect Against UV Damage
UV rays can cause roofing materials to degrade over time, especially for single-ply membranes like TPO and PVC. To combat UV damage, some roofing materials come with a reflective coating, but additional protection can be added.
- Tip: Apply a reflective coating to your roof if it doesn’t already have one. This will help prevent UV damage and reduce cooling costs during the summer.
5. Address Leaks Promptly
Leaks are one of the most common problems in commercial roofing, often caused by damaged flashing, punctures, or improperly sealed seams. Even minor leaks can lead to water damage and mold growth if left unaddressed.
- Tip: Fix leaks as soon as they’re detected. Contact a professional roofing company like Coons Roofing to address the issue quickly and thoroughly, ensuring minimal disruption to your business.
The Importance of Choosing the Right Roofing Partner
Selecting a reputable roofing partner is essential for the proper installation and maintenance of a commercial roof. Commercial roofing systems require specialized knowledge, and a trusted local roofing company can ensure that your roof is installed to meet industry standards. Coons Roofing offers expertise in commercial roofing, providing tailored solutions for businesses seeking reliable and long-lasting roofing systems.
Benefits of Working with a Professional Roofing Company:
- Expertise in Local Regulations: Commercial roofs must comply with specific local and industry regulations. A professional roofer will ensure your roof meets these standards, avoiding potential fines and ensuring safety.
- Tailored Maintenance Plans: Commercial roofs benefit from customized maintenance plans that address unique materials, design, and load requirements.
- Long-Term Warranties: Many commercial roofing systems come with warranties, but they often require regular professional maintenance to remain valid. Working with a professional roofer ensures you meet the requirements and get the most out of your warranty.
Conclusion
Understanding the unique needs of commercial roofing can help property owners protect their investment and ensure the roof performs at its best for years to come. From choosing durable materials like TPO, EPDM, or metal to scheduling regular inspections and cleanings, proactive maintenance is essential in prolonging the lifespan of a commercial roof. Partnering with a trusted local roofing company like Coons Roofing provides added peace of mind, knowing that your roof is in capable hands. With the right approach and care, a well-maintained commercial roof can continue to protect your business and enhance its value for decades.
Stay in touch to get more updates & news on Fobie.org!
