A commercial roof is one of the most important parts of any business property. It protects the building, inventory, employees, and customers from the elements. However, many business owners have questions about their roofing system, from choosing the right material to understanding maintenance and repair needs.
At All Over Exterior Roofing, we help businesses make informed decisions about their roofing investments. In this guide, we’ll address the most common commercial roofing FAQs, covering topics such as materials, lifespan, costs, maintenance, and more.
1. What Are the Most Common Types of Commercial Roofing Systems?
Commercial buildings use different roofing materials based on climate, budget, and building structure. The most common commercial roofing options include:
Flat Roofing Systems
- TPO (Thermoplastic Olefin): A single-ply membrane known for energy efficiency and durability.
- EPDM (Ethylene Propylene Diene Monomer): A rubber roofing system that offers excellent weather resistance.
- PVC (Polyvinyl Chloride): A highly durable option with superior chemical resistance.
Metal Roofing Systems
- Standing Seam Metal Roofing: Offers exceptional longevity and weather protection.
- Corrugated Metal Roofing: Cost-effective and widely used for industrial buildings.
Built-Up Roofing (BUR)
A traditional commercial roofing method that consists of multiple layers of asphalt and reinforcing materials for added durability.
Modified Bitumen
An asphalt-based system designed for flexibility and durability, ideal for low-slope roofs.
Each system has its advantages, and our team can help you determine the best solution for your commercial property.
2. How Long Does a Commercial Roof Last?
The lifespan of a commercial roofing system depends on the material, climate, and maintenance routine. On average, commercial roofs last:
✔ TPO Roofing: 20-30 years
✔ EPDM Roofing: 25-30 years
✔ PVC Roofing: 20-30 years
✔ Metal Roofing: 40-70 years
✔ Built-Up Roofing (BUR): 20-30 years
✔ Modified Bitumen: 20-30 years
Regular maintenance and timely repairs can extend the lifespan of any commercial roof.
3. How Much Does a Commercial Roof Cost?
The cost of a commercial roofing system varies based on factors like material, labor, roof size, and installation complexity. Here’s a rough estimate of costs per square foot:
- TPO Roofing: $5 – $10 per sq. ft.
- EPDM Roofing: $4 – $8 per sq. ft.
- Metal Roofing: $10 – $20 per sq. ft.
- Built-Up Roofing (BUR): $6 – $12 per sq. ft.
Other cost considerations include insulation, drainage systems, and local building codes. To get an accurate quote, All Over Exterior Roofing offers free inspections and estimates to help businesses plan their roofing investment.
4. How Often Should a Commercial Roof Be Inspected?
Regular roof inspections are essential for preventing costly repairs and extending the life of your commercial roofing system. Industry experts recommend:
🔹 Bi-annual inspections: One in the spring and one in the fall.
🔹 Post-storm inspections: After severe weather events, such as hurricanes or hailstorms.
🔹 Before major renovations: If adding HVAC units or solar panels, a roof inspection ensures structural integrity.
According to the National Roofing Contractors Association (NRCA), routine inspections can reduce unexpected repair costs by up to 45% (source).
5. What Are the Most Common Commercial Roofing Problems?
Understanding common commercial roofing issues can help businesses take preventative action:
✔ Leaks and Water Damage: Caused by punctures, poor drainage, or aging materials.
✔ Ponding Water: Standing water can degrade roofing materials and lead to leaks.
✔ Blistering and Cracking: Heat and UV exposure can cause roofing membranes to break down.
✔ Loose Flashing: Damaged flashing around vents or HVAC systems can lead to leaks.
✔ Mold and Algae Growth: Excess moisture can cause biological growth, reducing roof lifespan.
Regular maintenance can address these issues before they become major problems.
6. Can a Commercial Roof Be Repaired, or Does It Need Replacement?
The decision to repair or replace a commercial roof depends on its condition.
- Minor Issues: Small leaks, cracks, or loose seams can usually be repaired.
- Moderate Damage: If over 25% of the roof is damaged, partial replacement may be necessary.
- Severe Damage or Aging Roof: If the roof is nearing the end of its lifespan, full replacement is often the best option.
A professional inspection can help determine the best course of action.
7. How Can Business Owners Extend the Life of a Commercial Roof?
To maximize the lifespan of your commercial roofing system, follow these best practices:
✔ Schedule Regular Inspections: Catch minor issues before they escalate.
✔ Clean Gutters and Drains: Prevent standing water and leaks.
✔ Repair Damage Promptly: Address issues like cracks, blisters, and punctures immediately.
✔ Apply Reflective Coatings: Cool roof coatings can reduce heat absorption and extend the roof’s lifespan.
The U.S. Department of Energy states that cool roofing materials can lower energy consumption by 10-15%, reducing HVAC strain (source).
8. How Do Warranties Work for Commercial Roofs?
Most commercial roofing systems come with warranties that cover:
✔ Manufacturer’s Warranty: Covers material defects (typically 10-30 years).
✔ Workmanship Warranty: Covers installation errors (usually 2-10 years).
✔ Extended Warranty: Some manufacturers offer extended coverage for additional protection.
To keep warranties valid, regular maintenance is required. Failure to document maintenance can void coverage.
9. How Can I Choose the Right Commercial Roofing Contractor?
Hiring the right contractor is crucial for a long-lasting, durable commercial roofing system. Look for:
✔ Experience & Reputation: Choose a company with a strong track record in commercial roofing.
✔ Licensing & Insurance: Ensure the contractor is fully licensed and insured.
✔ Material Options: A good contractor should offer multiple roofing solutions.
✔ References & Reviews: Check past customer feedback and case studies.
At All Over Exterior Roofing, we have over 15 years of experience providing high-quality commercial roofing solutions.
Schedule a Free Commercial Roof Inspection Today
Having the right information about your commercial roofing system helps protect your investment, reduce costs, and extend roof life. Whether you need an inspection, repairs, or a new installation, our team is here to help.
Get a Free Inspection Today!
Need answers about your commercial roofing system? Get a free inspection now and let our experts provide the best roofing solutions for your business.
