Reinvent Your Rooftop with Exceptional Roofing Commercial Roof Replacements

The Importance Of Commercial Roof Replacement

As a commercial property owner or facility manager, one of the most significant investments you’ll make is in your building’s roof. A well-maintained and properly functioning roof is essential to protect your property, its contents, and its occupants from the elements.

However, even the best-maintained roofs will eventually need to be replaced. In this comprehensive guide, we’ll cover everything you need to know about commercial roof replacement, from the signs that it’s time for a new roof to the different types of roofing systems available, and from the cost of replacement to choosing the right contractor for the job.

Signs You Need a Commercial Roof Replacement

Before we dive into the details of commercial roof replacement, let’s first discuss how to determine when it’s time for a new roof. Some signs that indicate you may need a roof replacement include:

Age

Most commercial roofs have a lifespan of 20-30 years, depending on the type of roofing system and the level of maintenance it receives. If your roof is approaching or has exceeded this age range, it may be time to consider a replacement.

Visible damage

If you notice any of the following signs of damage on your roof, it may be time for a replacement:

• Cracks, blisters, or punctures in the roofing material
• Sagging or uneven areas on the roof surface
• Loose, missing, or damaged flashing around edges, vents, or chimneys
• Excessive granule loss on shingle roofs
• Rust or corrosion on metal roofs

Leaks or water damage

If you’ve noticed water stains on your ceiling or walls, or if you’ve experienced recurring leaks, your roof may be failing and in need of replacement.

High energy bills

If your energy costs have been steadily increasing, it could be a sign that your roof is no longer providing adequate insulation or that it has air leaks, both of which can be addressed with a roof replacement.

Plans to sell or occupy the building long-term

If you’re planning to sell your commercial property or if you intend to occupy the building for many years to come, a roof replacement can be a wise investment to improve the value and long-term performance of your property.

Types of Commercial Roofing Systems

When it comes to commercial roof replacement, there are several types of roofing systems to choose from, each with its own benefits and drawbacks. Some of the most common types of commercial roofing systems include:

1. Built-Up Roofing (BUR)

BUR systems are made up of multiple layers of bitumen (asphalt) and reinforcing fabric, with a top layer of gravel or mineral granules. They are known for their durability and resistance to foot traffic, but they can be heavy and may require additional structural support.

2. Modified Bitumen

Modified bitumen roofing consists of a base sheet and a cap sheet made of asphalt modified with either plastic (APP) or rubber (SBS) polymers. These systems offer good flexibility and tear resistance, and they can be installed using various methods, including torch-down, cold-applied adhesive, or self-adhered sheets.

3. Single-Ply Membrane

Single-ply roofing membranes, such as TPO (thermoplastic polyolefin), PVC (polyvinyl chloride), and EPDM (ethylene propylene diene monomer), are installed in a single layer over insulation and cover board. They are lightweight, flexible, and resistant to UV rays and chemical exposure, making them a popular choice for flat or low-slope roofs.

4. Metal Roofing

Metal roofs are available in a variety of materials, such as steel, aluminum, and copper, and they can be installed in panels or shingles. They are known for their durability, fire resistance, and energy efficiency, as they reflect heat and reduce cooling costs.

5. Green Roofing

Also known as vegetative or eco-roofs, green roofing systems feature a waterproofing membrane, drainage layer, growing medium, and vegetation. They offer numerous environmental benefits, such as reducing stormwater runoff, improving air quality, and extending the life of the roofing membrane.

6. Spray Polyurethane Foam (SPF)

SPF roofing is applied as a liquid that expands into a foam, creating a seamless, monolithic layer that conforms to the shape of the roof. It offers excellent insulation properties and can be applied over existing roofing systems, making it a good choice for retrofits or irregular roof shapes.

Commercial Roof Replacement Cost

The cost of a commercial roof replacement can vary widely depending on several factors, such as the size and complexity of the roof, the type of roofing system chosen, and the geographic location of the property. On average, commercial roof replacement costs can range from $3.50 to $7.50 per square foot for single-ply membranes, $5.50 to $10.00 per square foot for built-up or modified bitumen systems, and $7.00 to $15.00 per square foot for metal roofing.

It’s important to note that while the upfront cost of a roof replacement may seem high, it can be a worthwhile investment in the long run. A new, energy-efficient roof can help reduce your building’s heating and cooling costs, and a well-installed, high-quality roofing system can last for decades with proper maintenance.

Commercial Roof Replacement Cost per Square Foot

The cost of a commercial roof replacement is typically measured in cost per square foot, which can vary depending on the type of roofing system you choose and the specific characteristics of your roof. Here are some common cost ranges for popular commercial roofing systems:

Roofing System	Cost per Square Foot
Single-Ply Membrane (TPO, PVC, EPDM)	$3.50 to $7.50
Built-Up Roofing (BUR)	$5.50 to $10.00
Modified Bitumen	$5.50 to $12.00
Metal Roofing	$7.00 to $15.00
Spray Polyurethane Foam (SPF)	$4.00 to $7.00

These costs are general estimates and can vary based on factors such as the complexity of your roof, the quality of materials used, and regional labor costs. Additionally, these costs typically include materials, labor, and standard warranties, but may not include additional expenses such as permits, fees, or upgrades like insulation or decking repairs.

Commercial Flat Roof Replacement Cost per Square Foot

Flat roofs are common in commercial buildings and have unique requirements for proper drainage and waterproofing. The cost per square foot for a commercial flat roof replacement can vary based on the roofing system you choose and the specific needs of your building.

Here are some common cost ranges for commercial flat roof replacement:

Roofing System	Cost per Square Foot
Single-Ply Membrane (TPO, PVC, EPDM)	$3.50 to $7.50
Built-Up Roofing (BUR)	$5.50 to $10.00
Modified Bitumen	$5.50 to $12.00
Spray Polyurethane Foam (SPF)	$4.00 to $7.00

When replacing a commercial flat roof, it’s essential to consider the following factors that can impact the cost and performance of your new roof:

• Drainage: Proper drainage is critical for flat roofs to prevent ponding water, which can lead to leaks and premature deterioration. Tapered insulation systems or additional drains may be necessary to ensure adequate drainage, which can add to the overall cost.
• Insulation: Adding or upgrading insulation can improve your building’s energy efficiency and help your new roof last longer by reducing thermal stress. The cost of insulation will depend on the type and thickness required.
• Roof Access: If your flat roof is difficult to access or requires special equipment, such as cranes or hoists, the cost of the project may increase.
• Warranty: Enhanced or extended warranties may be available for an additional cost, which can provide added protection for your investment in your new flat roof.

To get an accurate cost estimate for your commercial flat roof replacement, contact us at Exceptional Roofing and we will assess your specific needs and provide detailed proposals based on the scope of work required.

Choosing a Commercial Roofing Contractor

Selecting the right contractor is crucial to ensuring the success and longevity of your commercial roof replacement project. When choosing a contractor, consider the following factors:

1. Experience: Look for a contractor with extensive experience in commercial roofing, particularly with the type of roofing system you’ve chosen. Ask for references and examples of similar projects they’ve completed.
2. Licensing and insurance: Verify that the contractor is licensed and insured to perform roofing work in your state or municipality. This helps protect you from liability in case of accidents or property damage during the project.
3. Warranty: Make sure the contractor offers a warranty on both the materials and the workmanship of the roof replacement. Understand the terms and duration of the warranty, and ask about any maintenance requirements to keep the warranty valid.
4. Communication and professionalism: Choose a contractor who communicates clearly and promptly, provides detailed project proposals and contracts, and maintains a professional demeanor throughout the process.
5. Price: While it may be tempting to choose the contractor with the lowest bid, be cautious of offers that seem too good to be true. Make sure to compare proposals from several reputable contractors and consider the value and quality of the work, not just the price.

For help with your commercial roof replacement needs, Contact us at (888) 425-0725 or email office@exceptionroofing.com.

The Commercial Roof Replacement Process

Once you’ve selected a contractor and decided on a roofing system, the commercial roof replacement process typically includes the following steps:

1. Pre-installation inspection: The contractor will assess the condition of your existing roof, identify any structural or drainage issues, and take measurements to determine the materials needed for the replacement.
2. Removal of old roofing: The old roofing material will be carefully removed and disposed of, and any necessary repairs to the roof deck or substrate will be made.
3. Installation of new roofing system: The new roofing system will be installed according to the manufacturer’s specifications and local building codes. This may involve installing insulation, cover board, and vapor barriers, as well as the roofing membrane or panels.
4. Flashing and detail work: The contractor will install or replace flashing around edges, vents, and penetrations to ensure a watertight seal and prevent leaks.
5. Final inspection and cleanup: After the installation is complete, the contractor will perform a final inspection to ensure the roof is properly installed and free of defects. They will also clean up any debris and remove equipment from the site.

Maintaining Your New Commercial Roof

To maximize the lifespan and performance of your new commercial roof, it’s essential to implement a regular maintenance program. This should include:

1. Scheduled inspections: Have your roof inspected by a professional at least twice a year, ideally in the spring and fall, to identify any potential issues or damage.
2. Cleaning and debris removal: Keep your roof clean and free of debris, such as leaves, branches, and dirt, which can trap moisture and lead to deterioration.
3. Prompt repairs: Address any minor damage or leaks promptly to prevent them from escalating into more serious and costly issues.
4. Record-keeping: Maintain accurate records of all inspections, maintenance, and repairs performed on your roof. This can help with warranty claims and future budgeting for roof replacement.

By following these maintenance best practices, you can ensure that your new commercial roof provides optimal protection and performance for your building for years to come.

Commercial Roof Replacement Near Me

When searching for a commercial roof replacement contractor, it’s essential to find a reputable and experienced professional who serves your local area. Here at Exceptional Roofing, we specialize in commercial roof replacements in the following areas:

• Illinois
• Indiana
• Kentucky
• Mississippi
• Missouri
• Southern Ohio

By working with a local contractor, you can benefit from their knowledge of regional climate conditions, building codes, and roofing best practices.

Commercial Roof Replacement Cost Calculator

To help you estimate the cost of your commercial roof replacement project, you can find online cost calculators. These tools typically require you to input information such as the size of your roof, the type of roofing system you’re considering, and your geographic location. While these calculators can provide a rough estimate, it’s important to keep in mind that the actual cost of your project may vary based on factors such as the complexity of your roof, any necessary repairs or upgrades, and the specific contractor you choose.

For a more accurate cost estimate, it’s best to request a detailed proposal from a reputable commercial roofing — such as the experts here at Exceptional Roofing. We can assess your specific needs and provide itemized quotes based on the scope of work required.

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Commercial Roof Replacement Tax Deduction

In some cases, commercial roof replacement costs may be eligible for a tax deduction under Section 179 of the IRS tax code. This deduction allows businesses to deduct the full cost of qualifying equipment and property improvements, including roofing, in the year they are purchased and installed, rather than depreciating the cost over several years.

To qualify for the Section 179 deduction, the roof replacement must meet certain criteria, such as:

• The roof must be on a commercial property used for business purposes.
• The roof must be a new installation or a complete replacement, not just a repair or maintenance project.
• The roof must have a useful life of more than one year.
• The total cost of the roof replacement must not exceed the Section 179 spending cap for the year.

It’s important to consult with a tax professional or accountant to determine whether your commercial roof replacement project qualifies for the Section 179 deduction and to ensure proper documentation and filing requirements are met.

A commercial roof replacement is a significant investment in the protection and long-term performance of your commercial property. By understanding the signs that it’s time for a new roof, the types of roofing systems available, and the factors to consider when choosing a contractor, you can make an informed decision and ensure the success of your roofing project.

Regular maintenance and prompt repairs can help extend the life of your new roof and provide optimal protection for your building and its occupants for years to come. If you’re considering a commercial roof replacement, be sure to work with a reputable, experienced contractor who can guide you through the process and deliver a high-quality, long-lasting result.

Commercial Roof Replacement: Removal and Disposal

The first step in a commercial roof replacement project is removing the existing roof system. This process requires careful planning and execution to ensure the safety of workers and the protection of the building and its occupants. The removal process typically involves:

• Setting up safety barriers and access points
• Removing any rooftop equipment or accessories
• Cutting the roof into manageable sections
• Removing each section, starting at the highest point and working downward
• Disposing of the old roofing materials in accordance with local regulations

Proper disposal of the old roofing materials is essential. Some materials, such as asphalt shingles, may be recycled, while others, like single-ply membranes, may need to be sent to a landfill. Working with a reputable contractor experienced in roof removal and disposal can ensure that the process is completed safely and efficiently.

Roof Deck Inspection and Repair

Once the old roofing material has been removed, the roof deck must be thoroughly inspected for any signs of damage or deterioration. Common issues that may be found during a roof deck inspection include:

• Rotted or moisture-damaged wood decking
• Corroded or rusted metal decking
• Cracks or spalling in concrete decking
• Uneven or sagging areas

If any damage is found, repairs must be made before the new roof system can be installed. This may involve replacing damaged decking sections, reinforcing weak areas, or leveling uneven surfaces. In some cases, the entire roof deck may need to be replaced if the damage is extensive or if the deck no longer meets current building codes.

It’s crucial to address any roof deck issues before installing the new roof, as a damaged or unstable deck can compromise the integrity and performance of the new system.

Slope and Drainage Considerations

Proper slope and drainage are critical factors in the performance and longevity of a commercial roof system. Insufficient slope can lead to ponding water, which can cause premature deterioration, leaks, and even structural damage.

The minimum slope requirements for commercial roofs vary depending on the type of roofing system being installed. For example:

• Built-up roofs (BUR) and modified bitumen systems require a minimum slope of 1/4 inch per foot
• Single-ply membranes like TPO and PVC require a minimum slope of 1/8 inch per foot
• Metal roofs typically require a minimum slope of 1/2 inch per foot

To achieve proper slope and drainage, a tapered insulation system may be used. Tapered insulation consists of insulation boards of varying thicknesses that are installed in a sloped configuration to direct water toward drainage points, such as scuppers or downspouts.

In addition to tapered insulation, crickets and saddles may be installed to divert water around obstructions, such as rooftop equipment or skylights. Proper sizing and placement of scuppers and downspouts are also essential to ensure that water is effectively removed from the roof surface.

Roof System Attachment Methods

The method used to attach the new roof system to the deck is another critical consideration in a commercial roof replacement project. The attachment method can impact the wind uplift resistance, fire rating, and overall performance of the roof system.

Common roof system attachment methods include:

• Mechanical attachment: This method involves using fasteners and plates to secure the roof system to the deck. Mechanical attachment is typically used with single-ply membranes and requires careful calculation of fastener spacing and placement to meet wind uplift requirements.
• Adhesive attachment: This method uses a low-rise foam adhesive or hot asphalt to adhere the roof system to the deck. Adhesive attachment is commonly used with built-up roofs, modified bitumen systems, and some single-ply membranes.
• Ballasted systems: In a ballasted system, the roof membrane is loose-laid over the insulation and held in place by a layer of gravel or pavers. Ballasted systems are less common in commercial applications due to concerns about wind uplift and the added weight on the structure.

The choice of attachment method will depend on factors such as the type of roofing system, the deck material, the building’s height and exposure, and local building codes.

Flashing and Seam Sealing Techniques

Flashing and seam sealing are critical components of a commercial roof replacement project, as they help to maintain a continuous waterproofing layer and prevent leaks at vulnerable points, such as penetrations and terminations.

Flashing is used to seal the edges of the roof system at parapets, walls, and other vertical surfaces. It is also used to waterproof penetrations, such as pipes, ducts, and equipment curbs. Common flashing materials include:

• Metal (e.g., aluminum, galvanized steel, copper)
• Single-ply membranes (e.g., TPO, PVC)
• Modified bitumen
• Elastomeric coatings

Proper flashing installation involves ensuring that the flashing material is securely attached to the substrate, overlapped and sealed at joints, and terminated with a watertight seal at the top edge.

Seam sealing is the process of joining and waterproofing the seams between adjacent sheets of roofing material. The specific seam sealing method will depend on the type of roofing system being installed. For example:

• TPO and PVC membranes are typically heat-welded at the seams
• EPDM membranes are joined with adhesive or tape
• Modified bitumen seams are torch-welded or hot-air welded

Proper seam sealing is essential to prevent water infiltration and ensure the long-term performance of the roof system.

Roof Accessory Replacement

During a commercial roof replacement project, it’s important to assess the condition of existing roof accessories, such as hatches, skylights, and ventilation equipment. If these accessories are damaged, deteriorated, or not compatible with the new roof system, they may need to be replaced.

When replacing roof accessories, it’s important to consider:

• Compatibility with the new roof system
• Energy efficiency and performance
• Building code requirements
• Integration with the roof system for a watertight seal

For example, when replacing a roof hatch, the new hatch should be properly sized, insulated, and equipped with a curb and flashing that are compatible with the new roof system. Similarly, when replacing skylights, the new units should be selected for their energy performance, durability, and ability to integrate with the roof system without compromising waterproofing.

Roof Replacement Project Planning and Budgeting

Careful planning and budgeting are essential for the success of a commercial roof replacement project. Key considerations include:

• Assessing the condition of the existing roof and identifying any necessary repairs or upgrades
• Selecting the appropriate roof system based on building use, climate, and performance requirements
• Developing a realistic project timeline that takes into account weather, material lead times, and any business disruptions
• Creating a detailed budget that includes materials, labor, equipment, permits, and contingencies
• Coordinating with building occupants, property managers, and other stakeholders to minimize disruptions and ensure a smooth project execution

A reputable roofing contractor can assist with project planning and budgeting, providing valuable insights and recommendations based on their experience and expertise.

Roof Replacement Contracts and Documentation

A clear and comprehensive contract is essential for protecting the interests of both the building owner and the roofing contractor. Key elements of a roof replacement contract include:

• Detailed scope of work, including materials, installation methods, and warranty requirements
• Project timeline and milestones
• Payment terms and schedule
• Insurance and liability requirements
• Change order procedures
• Dispute resolution mechanisms

In addition to the contract, it’s important to document the roof replacement process from start to finish. This may include:

• Pre-construction roof assessment and condition reports
• Material submittals and approvals
• Progress reports and photos
• Inspection reports and punch lists
• Close-out documents, such as warranties, maintenance manuals, and as-built drawings

Proper documentation can help ensure quality control, facilitate communication between stakeholders, and provide a valuable record for future reference.

Post-Replacement Inspection and Close-Out

Once the roof replacement is complete, a thorough final inspection should be conducted to ensure that the work has been performed in accordance with the contract, manufacturer’s specifications, and applicable building codes. A punch list of any outstanding items or deficiencies should be created and addressed by the contractor.

Other important close-out tasks include:

• Obtaining necessary permits and approvals from local building authorities
• Conducting a walk-through with the contractor to review the completed work and discuss maintenance requirements
• Collecting and organizing project documentation, such as warranties, material data sheets, and as-built drawings
• Processing final payments and releasing any liens or claims

A smooth and well-documented close-out process helps to ensure that the building owner receives a high-quality, properly functioning roof system that will provide long-term protection and value.

Roof Replacement Maintenance and Warranty Management

Regular maintenance is essential for maximizing the lifespan and performance of a newly replaced commercial roof. A comprehensive maintenance plan should include:

• Semi-annual or annual inspections to identify any signs of damage, deterioration, or premature wear
• Routine cleaning to remove debris, dirt, and contaminants that can degrade the roof surface
• Prompt repairs of any deficiencies or damage, such as punctures, splits, or loose flashing
• Documentation of all maintenance activities and repairs for warranty and budgeting purposes

In addition to regular maintenance, it’s important to understand and manage the warranties associated with the new roof system. This may include:

• Manufacturer’s warranty on materials and workmanship
• Contractor’s warranty on installation and labor
• Extended or enhanced warranties that may be available for an additional cost

Building owners should carefully review warranty terms and conditions, including any exclusions or maintenance requirements, and ensure that all necessary documentation is submitted to activate and maintain warranty coverage.

By implementing a robust maintenance program and proactively managing warranties, building owners can protect their roofing investment and ensure optimal long-term performance.

Frequently Asked Questions (FAQs) about Commercial Roof Replacement

How do I know if my commercial roof needs to be replaced?

There are several signs that may indicate your commercial roof needs replacement. One of the most obvious is the age of the roof, as most commercial roofs have a lifespan of 20-30 years, depending on the materials and maintenance. Another clear sign is the presence of leaks or water damage, such as persistent leaks or water stains on ceilings or walls. Visible damage, including cracks, blisters, or tears in the roofing membrane, as well as rust or corrosion on metal components, can also signal the need for replacement. Additionally, if your heating or cooling costs have been steadily rising, it could be due to poor roof insulation or air leaks. Finally, if your roof appears to be sagging or has areas where water collects and doesn’t drain properly, it may be time to consider a replacement.

How long does a commercial roof replacement typically take?

The duration of a commercial roof replacement project depends on several factors, such as the size and complexity of the roof, the type of roofing system being installed, and weather conditions. On average, a commercial roof replacement can take anywhere from a few days to several weeks. Your roofing contractor should provide you with a detailed project timeline before starting the work.

Can I replace my commercial roof in sections, or do I need to do the entire roof at once?

In most cases, it’s best to replace the entire roof at once to ensure consistent performance, weatherproofing, and appearance. Replacing the roof in sections can lead to issues with seam integrity, drainage, and warranty coverage. However, if your roof is large or complex, your contractor may recommend a phased approach to minimize disruption to your business operations.

How much does a commercial roof replacement cost?

The cost of a commercial roof replacement can vary widely depending on factors such as the size of the roof, the type of roofing system selected, and local labor rates. On average, commercial roof replacement costs can range from $3.50 to $7.50 per square foot for single-ply membranes, $5.50 to $10.00 per square foot for built-up or modified bitumen systems, and $7.00 to $15.00 per square foot for metal roofing. It’s important to get detailed quotes from several reputable contractors to compare costs and ensure you’re getting a fair price.

Can I install a new roof system over my existing commercial roof?

In some cases, it may be possible to install a new roof system over an existing one, a process known as an overlay or retrofit. However, this approach is not always recommended, as it can limit the lifespan of the new roof, void manufacturer warranties, and make it more difficult to identify and address underlying issues with the roof deck or insulation. In most cases, a complete tear-off and replacement is the best option for long-term performance and value.

Why is gravel needed in a commercial roof replacement?

Gravel, or ballast, is sometimes used in commercial roof replacement projects involving built-up roofing (BUR) or certain single-ply membranes. The gravel serves multiple purposes, including protecting the underlying roofing materials from UV radiation, resisting wind uplift forces, improving fire resistance, facilitating drainage, and enhancing the roof’s appearance. The weight of the gravel helps hold the roofing system in place, while its non-combustible nature adds fire resistance. By creating a slight slope, gravel also prevents water from ponding on the roof surface. In some cases, gravel can provide a more attractive and finished look to the roof.

It’s important to note that not all commercial roofing systems require or benefit from gravel application. Your roofing contractor can help you determine whether gravel is necessary or appropriate for your specific roof replacement project based on factors such as the roofing material, building location, and local building codes.

What kind of warranty can I expect with a new commercial roof?

Most commercial roof replacements come with two types of warranties: a manufacturer’s warranty on the roofing materials and a contractor’s warranty on the installation labor. Manufacturer warranties can range from 10 to 30 years or more, depending on the specific roofing system and any enhanced warranty options selected. Contractor warranties typically cover installation defects and workmanship for a period of 1 to 5 years. It’s important to carefully review the terms and conditions of both warranties to understand what is covered, what is excluded, and any maintenance or inspection requirements necessary to keep the warranties in effect.

How can I maintain my new commercial roof to ensure its longevity?

Regular maintenance is essential for maximizing the lifespan and performance of your new commercial roof. Key maintenance tasks include bi-annual inspections, keeping the roof clean and debris-free, promptly addressing minor damage or leaks, ensuring proper drainage, documenting all maintenance and repairs, and working with a qualified roofing contractor. By following a proactive maintenance plan and addressing issues promptly, you can help ensure your new commercial roof provides reliable, long-term protection.