Commercial Roof Replacement (Explained Start to Finish)

Commercial property owners, we’ve got you covered in this guide that delves into the intricate process of commercial roof replacement for your commercial building. Whether you’re a business owner, property manager, or investor, understanding the entire process can help you make informed decisions and ensure a successful roof replacement.

Inside this blog:

• 11 steps that explain the commercial roof replacement process

• Tips + tricks under each step to ensure a successful roof replacement

Keep reading to learn how to keep your business protected with a durable and beautiful commercial roof!

1. Understanding Commercial Roofing Systems 🏢

Commercial roofing systems are designed to provide a watertight seal and protect the building’s contents from the elements. There are several types of commercial roofing systems, each with its own unique characteristics, advantages, and disadvantages. Understanding these differences is crucial for selecting the right system for your building.

• Single-Ply Membrane: This category includes TPO, PVC, and EPDM membranes. These materials are lightweight, durable, and offer excellent energy efficiency. They are relatively easy to install and maintain, making them a popular choice for many commercial buildings.
• Built-Up Roofing (BUR): BUR systems consist of multiple layers of asphalt and reinforcement materials. They provide excellent protection and durability but are heavier and require more labor to install. BUR is known for its long lifespan and ability to withstand harsh weather conditions.
• Modified Bitumen Roofing: This asphalt-based roofing material is highly resistant to extreme temperatures and weather conditions. It offers excellent durability and is often used in areas with fluctuating temperatures.
• Metal Roofing: Metal roofs are renowned for their durability, energy efficiency, and aesthetic appeal. They can last for decades with minimal maintenance and are available in various styles and colors to match the building’s design.

By understanding the different types of commercial roofing systems, you can make an informed decision that best suits your building’s needs and budget.

1. Assessing the Need for Replacement 🤔

The journey begins with an assessment of your existing commercial roof. Here’s where you start:

• Roof Inspection: Hire a professional roofing contractor to inspect your roof thoroughly. They’ll identify issues such as leaks, water damage, membrane deterioration, or structural problems. Different commercial buildings may have unique roofing needs based on their structure and usage, making a thorough inspection even more critical.

• Age of the Roof: Consider the age of your existing roof. Most commercial roofs have a lifespan of 20 to 30 years, but it can vary depending on materials and maintenance.

• Cost-Benefit Analysis: Evaluate whether repairing the roof or opting for a full replacement makes more financial sense in the long run. Sometimes, frequent repairs can add up to more than the cost of replacement.

2. Budgeting and Financing 💸

Now that you’ve determined that a commercial roof replacement is necessary, it’s time to budget and secure the necessary funds:

• Cost Estimation: Get quotes from multiple roofing contractors to estimate the cost of your project accurately. The cost can vary based on the size of your roof, materials, labor, and additional features.

• Financing Options: Explore financing options, including loans, lines of credit, or leasing arrangements, to cover the expenses. Some commercial property owners may qualify for government incentives or tax benefits related to energy-efficient roofing.

3. Choosing the Right Roofing Material 🛠️

When selecting the appropriate roofing material, it’s essential to consider the different commercial roofing systems available to ensure the best fit for your building.

Selecting the appropriate roofing material is a critical decision that affects your roof’s longevity and performance:

• Single-Ply Membranes (TPO, PVC, EPDM): These lightweight, durable materials offer energy efficiency and are relatively easy to install.

• Built-Up Roofing (BUR): Consisting of multiple layers of asphalt and reinforcement materials, BUR provides excellent protection but is heavier and requires more labor.

• Metal Roofing: Metal roofs are known for their durability, energy efficiency, and aesthetic appeal.

• Modified Bitumen: This asphalt-based roofing material is highly resistant to extreme temperatures and weather conditions.

4. Hiring a Professional Roofing Contractor 👷

Finding the right roofing contractor is crucial to the success of your commercial roof replacement project:

• Check Credentials: Ensure the contractor is licensed, insured, and certified for the type of roofing material you’ve chosen.

• References and Portfolio: Ask for references and review their portfolio to assess the quality of their work.

• Detailed Contract: Sign a detailed contract that outlines project timelines, materials, warranties, and payment schedules.

5. Preparing Your Property 🧹

Before the actual replacement begins, you need to prepare your property:

• Notify Tenants: If your commercial property is leased, inform tenants about the upcoming roof replacement and any temporary disruptions it may cause. Provide tenants with a clear project timeline to help them plan accordingly and minimize disruptions.

• Safety Measures: Ensure the safety of your employees, tenants, and contractors during the construction process. Establish safety protocols, designate work zones, and provide proper signage.

• Clearing the Area: Remove any equipment, furniture, or obstacles from the work area to facilitate a smooth installation process.

6. Removal of Existing Roofing 🏗️

The removal of the old roofing material is a crucial step in the process:

• Tear-Off: The existing roof material is removed to expose the deck. This process can be noisy and messy, but it’s essential to ensure a proper installation of the new roof.

7. Roof Deck Inspection and Repair 🔍

With the old roofing material removed, it’s time to inspect the roof deck for any structural damage:

• Structural Repairs: Address any damaged or weakened sections of the roof deck to ensure a solid foundation for the new roofing material.

8. Installation of New Roofing Material 🚧

The commercial roof installation process is critical to ensure the longevity and performance of your new roof.

Now, it’s time for the main event – the installation of the new roofing material:

• Underlayment: Install an appropriate underlayment or insulation layer to enhance energy efficiency and protect against moisture.

• Application: Depending on the chosen material, the installation process may vary for your commercial roofing system. For single-ply membranes, the roofing material is adhered or mechanically attached. Built-up roofing involves multiple layers of asphalt and reinforcement.

9. Quality Control and Inspection 🕵️

Throughout the installation process, quality control and inspection are critical:

• Roofing Inspector: Hire an independent roofing inspector to evaluate the installation and ensure it meets industry standards and manufacturer specifications. Their expertise can provide you with peace of mind and a certified seal of approval for your new commercial roof.

10. Sealing And Waterproofing 💧

Sealing and waterproofing are critical components of a commercial roofing system. A reliable seal ensures that water does not penetrate the roof and cause damage to the building’s contents. Waterproofing materials, such as sealants and coatings, are applied to the roof to create a barrier against water infiltration.

• Sealants and Coatings: These materials are essential for preventing water from entering the building. They are applied to seams, joints, and other vulnerable areas to ensure a watertight seal.
• Regular Inspections: To maintain the effectiveness of the seal and waterproofing, regular inspections are necessary. A professional roofing contractor can identify any potential issues and address them before they become major problems.
• Maintenance: Routine maintenance, including reapplying sealants and coatings as needed, is crucial for prolonging the life of your commercial roofing system. This proactive approach can prevent costly repairs and extend the roof’s lifespan.

By prioritizing sealing and waterproofing, you can protect your commercial building from water damage and ensure the longevity of your roofing system.

11. Cleanup And Debris Removal 🧽

After the roof replacement project is complete, it is essential to clean up the site and remove all debris. This includes disposing of old roofing materials, tools, and equipment. A thorough cleanup ensures safety and prevents any leftover nails or sharp objects from causing unexpected trouble.

• Debris Removal: All old roofing materials, including shingles, membranes, and insulation, should be properly disposed of. This prevents any potential hazards and keeps the site clean.
• Tool and Equipment Cleanup: Ensure that all tools and equipment used during the installation are removed from the site. This helps prevent accidents and keeps the area safe for occupants and visitors.
• Final Inspection: Conduct a final inspection of the site to ensure that no debris or materials are left behind. This step is crucial for maintaining a safe and clean environment.

A clean job site not only ensures safety but also leaves a positive impression on tenants and visitors, reflecting the professionalism of the roofing contractor.

12. Documentation 📑

Proper documentation is essential for a commercial roof replacement project. This includes keeping records of the project’s progress, materials used, and any issues that arose during the project. Documentation also includes warranties, guarantees, and certificates of completion.

• Project Records: Maintain detailed records of the project’s progress, including daily reports, photographs, and notes on any challenges encountered. This helps track the project’s timeline and ensures transparency.
• Materials Used: Keep a record of all materials used during the project, including their specifications and quantities. This information is valuable for future reference and warranty claims.
• Warranties and Guarantees: Ensure that you have all the necessary documentation for warranties and guarantees provided by the roofing material manufacturer and the contractor. This protects your investment and provides peace of mind.
• Certificates of Completion: Obtain certificates of completion from the contractor, confirming that the project has been completed to the highest standards.

By keeping accurate records and documentation, you can ensure that your commercial roof replacement project is completed successfully and provides long-term protection for your building.

13. Final Touches 🖌️

As the roof installation nears completion, there are a few final touches:

• Flashing and Sealing: Install flashing around roof penetrations like chimneys, vents, and HVAC units to prevent leaks. Ensure all seams and joints are properly sealed.

• Clean-Up: Thoroughly clean the work area, including gutters and downspouts, to remove any debris or leftover materials.

14. Warranty and Maintenance Plan 🛡️

After your new commercial roof is in place, it’s time to think about long-term protection:

• Warranty: Understand the warranty provided by the roofing material manufacturer and the contractor. Ensure you have all the necessary documentation for future reference.

• Maintenance Plan: Establish a regular maintenance plan to prolong the life of your commercial roof. Routine inspections and minor repairs can prevent costly issues in the future.

Get A Solid Roof Over Your Business

A commercial roof replacement is a significant undertaking, but with proper planning and execution, it can provide long-lasting protection for your business or property. By following these steps and investing in quality materials and professional installation, you can ensure that your commercial roof continues to shelter your business for years to come. 

Get in touch with our top-notch roofers at Next Dimension and we’ll make sure your next roofing project goes off without a hitch! We’re happy to answer any questions you have about the roof that hangs over your head.