Commercial FAQs


Some common signs of roof damage that indicate that your commercial roof needs a replacement vs. a repair can include roof leaks, blistering that appears on the roof, and the roof's age. Storms and strong winds can lead to roof membrane uplift. Other signs of damage can include flashing wear and tear and failed downspouts.


Water leaks often go unseen, especially in buildings with concealed roof undersides. Looking for secondary signs that you could need a roof replacement, like mold or ceiling water spots, is also crucial.


Minor issues can be resolved with commercial roof repair to prevent worsening damage. However, with more significant problems, a commercial roof replacement becomes necessary.

Detecting problems early can determine whether you'll need a roof repair or a complete roof replacement.

A roof inspection is beneficial in choosing the best approach for your commercial roof repair or replacement. Our experts can help you determine if a recovery and re-roof is acceptable or if the existing roof should be torn off before the replacement.

Scheduling a roof inspection for your commercial roof is crucial to ensure its longevity and prevent potential issues. We recommend scheduling inspections for commercial roofing systems annually, at a minimum.


It's also crucial to have your building's roof inspected after severe storms, before and after winter, before significant roofing work, and if you notice any signs of damage, like roof leaks, clogged downspouts, or holes.

The cost of a new commercial roof can vary significantly based on several factors, including the roof's size and complexity, the type of roofing materials chosen for the roof replacement, the type of warranties your contractor offers, and the elements involved in the commercial roofing system. Ease of access to the roof can also impact the price of a roof replacement.


To get an accurate estimate for your specific project, consult a licensed and certified roofing contractor like the team here at Roofing USA! We can assess your unique needs and provide a detailed quote.

The lifespan of a commercial roofing system can vary widely depending on several factors, including the type of roofing material used, the quality of the installation, climate conditions, and maintenance.


Built-up roofing systems, which typically consist of multiple layers of asphalt and roofing felt, can last 20 to 30 years or more with proper maintenance. Single-ply membrane roofing materials like TPO (thermoplastic olefin), EPDM (ethylene propylene diene monomer), and PVC (polyvinyl chloride) can have a lifespan of 20 to 30 years or more. Additionally, metal roofing systems can last 30 to 50 years or more. Modified bitumen roofing systems typically last between 20 and 30 years.


To maximize the lifespan of commercial roofing systems, invest in professional installation, conduct routine inspections, address issues promptly, and perform recommended preventative maintenance.

The installation time for a commercial roof varies widely based on factors like size, complexity, roofing materials, and the roofing contractors conducting the replacement. Generally, it can take anywhere from a few days to a couple of weeks. However, this timeframe can change based on specific project requirements and conditions.

The commercial roofing system and materials you select have a direct impact on both your building's structural integrity and energy efficiency. Common commercial roofing options include Built-Up Roofing (BUR), Single-Ply Membranes (TPO, EPDM, PVC), Metal Roofing, and Modified Bitumen. When selecting your new roof, you'll also want to consider your budget and ongoing maintenance requirements.


To ensure that your new roof aligns with your building's requirements (including building codes and accessibility requirements) and aesthetics, collaborating with reputable commercial roofing experts like Roofing USA is your best course of action. We can assess your needs, provide expert advice, and offer recommendations based on your business requirements and budget.

Yes, the type of business you operate can influence the practical choices for the ideal roof system. Different commercial roofing systems offer specific advantages and may be better suited to certain businesses based on their needs, industry regulations, and operational requirements.


For example, companies in the food service industry may benefit from roofing systems with good insulation properties, as well as resistance to grease and heat. TPO or PVC roofing can be suitable choices due to their durability and easy maintenance. Hospitals and healthcare centers may also have strict hygiene and air quality regulations. Roofing systems with good insulation and vapor barriers are essential for these buildings.


To determine the most practical commercial roofing solution for your building, reach out to Roofing USA for expert guidance!

Choosing the right commercial roofing company is crucial for ensuring the longevity and reliability of your building's roof.


Start by researching potential contractors. Look for companies with a solid reputation, years of experience, and positive customer reviews. Verify their licensing, insurance, and certifications to ensure they meet industry standards. Request quotes from multiple contractors and compare them, making sure they provide detailed cost breakdowns and timelines.


Ask for references and check their previous work to assess the quality of their craftsmanship. Good communication is vital, so choose a contractor who is responsive and attentive to your specific needs and concerns. Ultimately, selecting the right contractor to deliver the professional roofing service you need involves a combination of due diligence, trust, and a clear understanding of your project's requirements.

A reputable company providing professional roofing repair and replacement services for commercial buildings should offer warranties for their work and materials.


For example, Roofing USA offers a 20-year NDL on TPO and Modified commercial roofing systems. We also offer a 20-year weathertight warranty on metal roofs. Other warranty options are available depending on the manufacturer and system installed. For guidance on the best warranties to protect your roofing structure and installation, our experts are here to help!

As soon as you notice a leak or other issues regarding your commercial roof, call a reputable like Roofing USA for an inspection. We'll quickly send a technician to inspect your roof, locate the cause of the leak, and provide commercial emergency roof repair.
We do not do spray foam for commercial roofs. Instead, we recommend TPO roofing or a Modified roof. These roofing systems offer better quality and durability for commercial buildings.
While spray foam roofing is an option for commercial roofs, we do not offer spray foam through our professional roofing service. Instead, consider TPO roofing or Modified Bitumen roofing options for better durability and quality.

Yes, you can walk on spray foam roofing.

Birds will not typically eat the spray foam but may peck at it out of curiosity.

The cost of any commercial roof replacement depends on many factors, including the size of the roof, the complexity of the roofing system, and the materials involved.


Our experienced roofing contractors recommend better quality roofing materials, like TPO or EPDM roofing for commercial roofs. Reach out to our team for a free inspection and quote!

We highly recommend having a professional installer complete the application of spray foam roofing or any type of new commercial roof.

Compared to superior commercial roofing material, spray foam roofing is not always the best option for a new roof. If not installed correctly, this type of roof will not last very long.


Instead, we recommend TPO or EPDM roofing or a Modified roof. These roofing systems offer better quality and durability for commercial buildings.

Roofing USA officially launched in 2021 and has already made an impressive mark in the roofing industry. One of our recent achievements, being named the 2023 Charleston's Choice for roofing services, demonstrates the trust and recognition we've already gained within our community.


Additionally, our commitment to excellence is evident through our residential Master Elite certification from GAF, a testament to our expertise in residential roofing projects. Equally noteworthy is our commercial Master Certificate from GAF, highlighting our proficiency in handling commercial roofing installations.


With these accolades and certifications, Roofing USA showcases our dedication to providing high-quality roofing solutions for residential and commercial clients.

Roofing USA provides a comprehensive range of commercial roofing services to meet your needs. Our offerings include commercial repairs, commercial emergency roof repair, routine maintenance, and complete roof replacements and installations for commercial properties.


For low-slope roofing solutions, we specialize in TPO, PVC, modified bitumen, and EPDM roofing systems. For steep-slope roofing projects, we deliver expertise in metal, slate, copper, tile, and asphalt shingle roofs. Whatever your commercial roofing requirements are, Roofing USA has the knowledge and experience to deliver top-quality solutions tailored to your needs.

Roofing USA proudly holds various metal roofing systems certifications, including Uniflex, Soprema Group, Sika, Johns Manville, Carlisle, GAF, Berridge, Firestone, Drexel Metals, and Custom Metal Products. Our commitment to these certifications reflects our dedication to staying at the forefront of industry standards and ensuring that our clients receive the highest quality and expertise in metal roofing solutions.
Roofing USA has a dedicated in-house commercial service team and an equally proficient in-house emergency response team, both operating full-time. This setup allows us to provide comprehensive and prompt service to meet the diverse needs of our commercial roofing clients, whether it's routine maintenance, repairs, or immediate assistance during emergencies.

The frequency of commercial roof inspections can vary depending on various factors, including the type of roofing material, climate conditions, and the age of the roof. However, as a general guideline, commercial roofs should typically be inspected at least twice a year: once in the spring and once in the fall.


These regular semi-annual inspections help catch minor issues before they become significant problems and ensure that your roof is in good condition.


Additionally, it's a good practice to schedule roof inspections after severe weather events, such as storms with heavy rain, hail, or strong winds, as these can cause damage that may not be immediately visible. Moreover, older roofs may require more frequent inspections, perhaps quarterly or monthly, as they are more susceptible to wear and tear.


To schedule a Free Commercial Roof Inspection with our experts, click here.

Yes! Roofing USA specializes in commercial roofing repairs. We take pride in having a dedicated, highly skilled, and experienced in-house repair technician on our team.

Roofing USA brings a wealth of experience to new and historic building projects, showcasing our versatility and commitment to quality. With a proven track record in new construction projects like the "Time to Shine Car Wash," we understand the unique demands of modern structures.


Simultaneously, our expertise extends to preserving the rich architectural heritage of historic buildings. Our team's years of experience allow us to seamlessly blend traditional craftsmanship with cutting-edge techniques, ensuring that roofs protect and enhance the character and longevity of these cherished structures. Whether it's a brand-new development or a treasured historic landmark, Roofing USA stands ready to deliver top-notch roofing solutions tailored to the specific needs of each project.

Tile Roofers

Repairing your tile roof starts at approximately $300 for a 100 square foot area. If your area is smaller, our estimators will work on your specific need.
If you notice problems with the tiles such as cracking, chipping, or that they are loose, you should call a professional roofer to take a look. At Roofing USA, we specialize in repairing tile roofs.
Yes, tile roofs are made from naturally occurring materials, not chemicals. Once removed, the tiles can be pulverized and recycled.
Traditional clay tile is the most popular type of tile roof. Concrete tiles are slightly less expensive and slate tiles are slightly more expensive.
This type of roof can withstand high winds, hail, and even fire for up to 100 years.
Because tile roofs are very heavy, their insulating features will regulate the temperature inside your home keeping it cool in the summer and warm in the winter.

Slate Roofers

This cost will ultimately depend on the size of your home and the slope of your roof, as well as the style and colors you choose. Contact us for a free inspection to evaluate your slate options.

As with many of our products, a 50-year warranty is available in addition to the 10-year workmanship warranty to ensure that you get the most out of your roof. Speak to our roofing specialists to ask about the specific types of synthetic slate we use and we would be happy to share more about the warranty information.
Synthetic slate shingles are lighter and less expensive than natural slate shingles. While both are environmentally friendly roofing materials, synthetic slate shingles are easier to transport and install because of their weight and uniform size. They’re less fragile than natural slate, too.

HOA Roofing

Typically, HOAs cover the maintenance and repair of common areas. If your roof isn’t covered by the HOA, call our helpful team of experts.
In some cases, the HOA can force you to replace or upgrade your roof due to cosmetic or compliance issues. If you don’t act, you might face fines or even eviction. Don’t let it come to that. Our roofers will help you work it out and find a solution.
When in doubt, it’s best to ask. You would rather ask for permission now, than risk having to change or remove the work you put in later.

Multi Family Roofers

This is going to depend on your current roofing material. Asphalt shingles are one of the most common types of roofs in Charleston. If there are two or more layers of shingles or if the top layer is curling, lifting or damaged beyond repair, it’s time for a new one.
As your roof ages, it’s more susceptible to damage from wind, hail and other extreme weather events. Replacing your asphalt shingles is a great option. Alternatively, you can consider more durable materials like metal, slate or tile.
Usually not. When we work on your multi-family property, we can typically make all preparations and complete the work without coming inside. This means we won’t disturb the residents.
This will depend on how your gutters were installed. Even if we have to temporarily remove the gutters, we can usually put them back on. However, a new roof is a great time to upgrade your current gutters because this prevents them from being damaged during the roofing process.

Metal Roofing

The average cost of a metal roof will depend on the size and slope of your roof and the type of metal you choose to install. Our roofing specialists will be happy to go over the different options with you and find the right match for your home.
With metal roofs, there are a few things to consider. Metal roofs have a high upfront cost, but you will likely recoup your investment long-term because you won’t be replacing your roof as frequently. Color matching can also be difficult in the long term, but your roofer can help you find a close match.


All GAF roofing shingles and qualifying accessories (the “GAF Products”) come with the great coverage provided by the GAF Shingle & Accessory Limited Warranty, and you don’t need to do anything at all to get it. In the event you experience a problem with your GAF Products caused by a manufacturing defect, this warranty is a great start. See GAF Shingle & Accessory Limited Warranty for complete coverage and restrictions.

Neither the GAF Shingle & Accessory Limited Warranty nor the GAF Roofing System Limited Warranty require registration. Simply hold on to your proof of purchase (such as your contract with your installer or invoice from the roofing supply store or retail store where you purchased the GAF Products), which will need to be provided to GAF in the unlikely event you experience a problem with your GAF Products during the warranty term and need to file a claim.


Enhanced warranties (such as the System Plus Limited Warranty, Silver Pledge Limited Warranty, and Golden Pledge Limited Warranty) do require registration, but your GAF Certified Contractor will take care of that. If you purchase an enhanced warranty from a GAF Certified Contractor and do not receive a copy of your warranty and registration within 60 days after the installation is complete, call GAF at 1-877-423-7663.

For a complete list of GAF Shingles and Qualifying GAF Accessories that are eligible for a Lifetime limited warranty, visit
When you install a GAF Roofing System (defined as GAF Lifetime Shingles plus at least 3 Qualifying Accessories), you are automatically eligible for the coverage provided by the GAF Roofing System Limited Warranty – which provides the same great coverage as the GAF Shingle & Accessory Limited Warranty but adds Lifetime coverage on your Qualifying Accessory Products. Depending on what products you install, you may also be eligible for the WindProven Limited Wind Warranty. See GAF Roofing System Limited Warranty for complete coverage and restrictions.
The System Plus Limited Warranty provides all of the same coverage available in the GAF Roofing System Limited Warranty, but the Smart Choice Protection Period is extended from 10 years to 50 years, and tear-off is included (when necessary). See System Plus Limited Warranty for complete coverage and restrictions.
The Silver Pledge Limited Warranty provides all of the same coverage available in the System Plus Limited Warranty but also offers 10 years of workmanship coverage and disposal (when necessary). See Silver Pledge Limited Warranty for complete coverage and restrictions.
The Golden Pledge Limited Warranty provides all of the same coverage available in the Silver Pledge Limited Warranty, but the workmanship coverage lasts for 20, 25, or 30 years (depending on the type of shingles you choose to install). See Golden Pledge Limited Warranty for complete coverage and restrictions.

The word “Lifetime” refers to the length of coverage provided by your GAF warranty and means as long as you, the original owner(s) [or the second owner(s) if coverage was properly transferred during the Smart Choice Protection Period], own the property where the shingles and/or accessories are installed.


The Lifetime limited warranty is applicable only to shingles and accessories installed on a single-family detached residence owned by individuals. For any other type of owner or building, such as a corporation, governmental entity, religious entity, condominium or homeowner association, school, apartment building, office building, or multi-use structure, the length of the warranty is 40 years.

The Smart Choice Protection Period refers to the crucial period of time following installation of the GAF Products during which the coverage provided for in your GAF warranty is non-prorated. After the Smart Choice Protection Period, the remedy provided for in your GAF Warranty may be different than that provided for during the Smart Choice Protection Period, and any remedy will be reduced to reflect the use you have received from your GAF Products.


The amount of use will be calculated by dividing the number of months that have elapsed since installation by the date of claim by the number of months in the warranty term. For a Lifetime limited warranty, the number of months in the warranty term is deemed to be 600 for years 11-40 of the warranty term. For years 41 and beyond of a Lifetime warranty, GAF’s contribution is 20%. For example, if you make a claim for Lifetime shingles after they have been installed for 25 years (or 300 months), your settlement will be reduced by 300/600, or 50%.

In the event that GAF approves your warranty claim for a manufacturing defect during the Smart Choice Protection Period, GAF will provide you with replacement GAF Products and will pay you the full reasonable cost of labor to install the replacement GAF Products. After the Smart Choice Protection Period, labor is no longer covered, and the amount of replacement GAF Products will be reduced to reflect the use you have received from your GAF Products from the date of installation to the date of claim.

The Golden Pledge Limited Warranty and Silver Pledge Limited Warranty both offer coverage for misapplication of your GAF Products and flashings at valleys, dormers, chimneys, and plumbing vents (“Covered Flashings”). This coverage is also commonly referred to as “workmanship” coverage, and these warranties are only available through GAF Master Elite Roofing Contractors. For a list of GAF Master Elite Roofing Contractors in your area, please visit the GAF contractor locator.


In the event that GAF determines there is an application error that falls within the scope of the coverage provided for in the Golden Pledge or Silver Pledge Limited Warranty, GAF will arrange to have your roof repaired or, at its sole option, will provide you with replacement GAF Products and reimburse you for the full reasonable cost of labor and other materials to repair your roof, including Covered Flashings. See Golden Pledge Limited Warranty and Silver Pledge Limited Warranty for complete coverage and restrictions.

Algae warranty coverage is available in all GAF warranties covering shingles and accessories. All StainGuard Plus™-labeled shingles, ridge cap shingles, and StarterMatch® starter strip shingles carry a 25-year limited warranty and 10-year non-prorated period against algae discoloration caused by blue-green algae. All StainGuard®-labeled shingles carry a 10-year limited warranty and 1-year non-prorated period. There is no coverage for algae discoloration for any other GAF Accessory Products.


However, your StainGuard Plus™-labeled shingles, ridge cap shingles and starter strips may be eligible for a 15-year non-prorated period if you purchase an enhanced warranty through a GAF certified-contractor. The remedy provided in the event of a claim is the reasonable cost of commercially cleaning your shingles, ridge cap shingles, or StarterMatch® starter strip shingles, or at GAF’s sole option, replacing the discolored shingles, ridge cap shingles, or StarterMatch® starter strip shingles. See applicable warranty for complete coverage and restrictions.

Wind Warranty coverage is available in all GAF warranties covering shingles and accessories. Wind Warranty coverage on GAF shingles and ridge cap shingles lasts for 15 years. There is no wind warranty coverage for any other GAF Accessory Products. Maximum wind speed coverage depends on the type of shingles or ridge cap shingles installed on your roof, as well as the installation method.


The remedy provided in the event of a claim is reimbursement for the reasonable costs of replacing blown-off shingles, damaged shingles, or ridge cap shingles and hand-sealing any unsealed shingles or ridge cap shingles. See applicable warranty for complete coverage and restrictions.

The WindProven Limited Wind Warranty is an industry-first: 15-year limited wind warranty with no maximum wind speed limitation. In order to qualify for WindProven Limited Wind Warranty coverage, you must install GAF LayerLock-labeled shingles and at least four (4) qualifying GAF Accessory Products, including GAF Ridge Cap Shingles, GAF Starter Strip Shingles, and a GAF Roof Deck Protection Product, plus your choice of either a GAF Leak Barrier Product or GAF Attic Ventilation Product. Visit for a complete list of qualifying GAF Shingles and Accessory Products.


The WindProven Limited Wind Warranty provides coverage for your LayerLock-labeled shingles ONLY. The WindProven Limited Wind Warranty does not cover any GAF Accessory Products. The remedy provided in the event of a claim is reimbursement for the reasonable costs of replacing blown-off or damaged shingles and hand-sealing any unsealed shingles. See GAF Roofing System Limited Warranty for complete coverage and restrictions.

Any conditions resulting from anything other than an inherent manufacturing defect in the GAF Products (or their Misapplication if you have a Golden Pledge or Silver Pledge Limited Warranty) are NOT covered. This includes but is not limited to, failure to install adequate ventilation. Please be sure to discuss ventilation with your roofing contractor prior to the installation of your new roof.
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