Commercial Roof Replacement: What to Expect

When your Missouri commercial building sustains damage or its roof ages to the point of requiring replacement, Shelby Roofing & Exteriors can help you. In this blog, we’ll consider the process of commercial roof replacement, including the planning phase, installation, and inspection.

Commercial Roof Replacement Timeline

The total commercial roofing replacement project takes about two weeks, but most of that consists of planning. The planning phase typically takes one week, during which time you collaborate with your roofer to plan important aspects of the job. Once work begins on the roof, the project moves quickly. An experienced commercial roofer installs a replacement roof in three to four days, barring weather or other delays.

Prepare Your Business

Meet with your contractor to gain an understanding of the scope of the project and prepare accordingly. Coordinate with your contractor to minimize business downtime. Let’s consider the scoping, waste planning, and safety considerations that go into a roofing job.


Your commercial roofing professional evaluates the current roofing system and recommends the top replacement choices. Because manufacturers consistently improve materials, the ideal roof for your commercial building might differ from what you have now. The roofing contractor also helps you put together a timeline for the project, including any time you’ll to shut down business operations for the roofing work.

Debris and Waste Removal

Your roofing contractor needs access to your building’s dumpsters so the work crew knows where to stash the day’s trash. You will need to designate areas for debris collection so workers can drop roofing materials during the tear off process. Work with your contractor to schedule daily pickups by your waste management company or another contractor so debris doesn’t pile up and ruin your curb appeal.

Safety Review

When you hire an experienced commercial roofer like Shelby Roofing & Exteriors, you benefit from a safer process. Our Missouri business complies with all Occupational Safety and Health Administration standards. We use proper personal protective equipment (PPE) and fall protection systems, plus adhere to stringent ladder usage guidelines.

Replace the Roof

Once you finish the planning phase, work moves quickly and efficiently. Your roofing service begins by removing the existing roofing materials. The foreman inspects the decking next; if it requires no repairs, work commences on the roof replacement.

The work crew installs the new roofing materials, including a layer of felt underlayment to protect the structure from moisture and rooftop insulation to reduce energy costs. Your commercial building’s new roof might consist of:

  • Metal panels
  • Single-ply membranes (TPO or EPDM)
  • Built-up roofing.
  • Consult with your roofer to choose which material best suits your building.

The roofing team seals the roof to prevent leaks. They use specialized tapes, adhesives, and caulk to seal seams and joints. The lead contractor inspects the flashing and the overall installation before allowing the work crew to apply sealant or other coating materials to waterproof the roof.

After the final clean-up of the job site, the roofer conducts a final inspection. When the roof passes inspection, the crew goes home, and you resume business as usual in a building with a spiffy new roof that enhances your curb appeal and impresses your customers.

Contact Us Today

When your Missouri business needs a replacement roof, call Shelby Roofing & Exteriors. Founded by Pat Shelby in 1983, we’ve provided top-notch commercial roofing services to Southern Illinois and Missouri ever since. Call us today.