What is considered commercial roofing?
Commercial roofing involves installing, repairing, and maintaining roofs on non-residential buildings like offices, warehouses, or apartment complexes. These roofs are typically flat or low-sloped and use specialized materials, such as TPO or EPDM, designed to cover large surface areas and manage drainage effectively.
Keep in mind there isn't one single 'best' type of commercial roof — it really depends on your building, climate, and budget. Popular options like TPO and EPDM are great for flat roofs due to their durability and energy efficiency. A professional can help you weigh the pros and cons of each material to find the right fit for your property.
There are benefits too, like affordability and low maintenance. The right choice depends on your budget, climate, and goals.
What type of maintenance do commercial roofs require?
Your commercial roofing typically needs regular inspections, especially after storms, to check for damage. It's also important to keep drains, gutters, and the roof surface clear of debris to prevent water pooling. Finally, you'll want to repair any punctures, blisters, or failing seals promptly to avoid leaks and extend your roof's lifespan.
Pro tip: It’s recommended that you inspect your commercial roof at least twice a year. Regular inspections can help you catch minor issues like small leaks or membrane damage before they turn into costly repairs. This proactive maintenance also helps extend the life of your roof and protects your building's interior from water damage.
What factors impact the cost of commercial roofing?
Commercial roofing costs vary widely depending on a range of factors, including:
Roof size and complexity. Larger or more complex roofs with many vents, skylights, or HVAC units typically require more materials and labor, which can increase the price.
Type of roofing material. The material you choose plays a big role in the total cost. Options like TPO, EPDM, and metal roofing all have different price points for both the materials and the installation.
Condition of the current roof. If the existing roof needs to be completely removed before a new one can be installed, it will add to the labor and disposal costs. Any necessary repairs to the underlying roof deck will also be an additional expense.
Building accessibility. A roof that’s difficult to access — for example, on a very tall building with limited space for equipment — may require special machinery, which can affect the overall cost.
Labor and local permits. Labor rates can vary by location, and the cost of required building permits will also be factored into your final estimate.
What questions should I ask a commercial roofing contractor?
Some important questions that can help you assess a commercial roofing contractor include:
Are you licensed, bonded, and insured for commercial roofing projects?
Can you provide references from past commercial clients with similar roofing systems?
What is the estimated timeline, and how will you minimize disruption to my business operations?
What type of roofing system do you recommend for my building, and what are the material and workmanship warranties?
Will you provide a detailed, itemized quote that includes tear-off, disposal, and potential repairs?
What safety protocols do your crews follow on-site?
Who will be my main point of contact, and how will you handle communication throughout the project?
What are the signs that I need to repair or replace my commercial roofing?
Common signs that indicate it’s time to repair or replace your commercial roofing include:
Water damage inside. If you’re seeing water stains on ceilings or walls, it’s a classic sign that your roof is compromised.
Visible roof issues. Look for obvious problems on the roof surface, like cracks, blisters, separated seams, or punctures in the membrane.
Standing water. Water that doesn't drain within a day or two after it rains can cause serious deterioration over time.
Higher energy bills. An unexpected jump in your utility costs can mean your roof's insulation isn't performing well anymore.
The roof’s age. Most commercial roofs have a set lifespan. If yours is nearing the end of its warranty period, it’s smart to plan for a replacement.
What are some of the most common problems with commercial roofing?
Some of the most common problems with commercial roofing include:
Leaks and moisture. These are often the most noticeable issues, frequently caused by failing seams, damaged flashing around vents and HVAC units, or punctures in the roof membrane.
Ponding water. If water stands on your roof for more than forty-eight hours after it rains, it can accelerate the deterioration of roofing materials and add significant weight to the structure.
Poor installation or repairs. A roof that wasn't installed correctly from the start is prone to problems. Shoddy repair work can also fail quickly, leading to recurring issues.
Lack of maintenance. Forgetting about regular inspections can allow small, fixable issues — like clogged drains, debris buildup, and minor cracks — to turn into expensive, large-scale damage.
Punctures or membrane damage. The roof surface can be damaged by everything from heavy foot traffic and dropped tools to storm debris, creating openings for water to get in.
A commerical roofing pro can help you assess and resolve these issues before they grow larger.
