Commercial roofing

Commercial Roof Inspection Checklist

A close-up of a person in a hard hat, safety glasses, and gloves, inspecting a commercial roof with a checklist in hand.

A commercial roof inspection is an important part of any building owner’s maintenance routine. A comprehensive roof inspection can ensure that the roof is in good condition and will last for many years.

This checklist will provide a detailed overview of the components that should be inspected during a commercial roof inspection. It covers the roof surface, roof flashing, gutters and downspouts, roof vents, and roof drainage system. By following this checklist, building owners can have peace of mind that their roof is in optimal condition.

It is important to note that a commercial roof inspection should not be undertaken by an untrained individual. An experienced professional should be consulted to ensure that the inspection is done correctly and that any repairs or replacements needed are completed in a safe and efficient manner.

By taking the time to properly inspect and maintain a commercial roof, building owners can save time and money in the long run.

Inspect the Roof Surface

A thorough examination of the exterior surface is necessary to determine any potential issues. The roof should be assessed for any visible damage or wear, including any dents, holes, tears, or bubbles. The existing flashings should be identified and inspected for signs of corrosion or wear. All penetrations, such as chimneys, vents or skylights, should be checked for potential leaks. Additionally, any exposed metal should be inspected for corrosion. Any signs of damage or wear should be noted and addressed as necessary.

It is also important to check the roof flashing. The condition of the roof flashing should be evaluated, and any areas that appear to be compromised or are missing should be replaced. Additionally, the sealant around the flashing should be inspected to ensure it is still intact. Any loose, cracked, or otherwise damaged sealant should be scraped away and replaced.

The end of this task marks an important step in the commercial roof inspection process.

Check the Roof Flashing

Examination of roof flashing should be conducted to assess condition and integrity. Flashings are integral components for waterproofing at roof intersections and penetrations. Flashings should be inspected for any damage to the material, cracks, or breaks, as well as any deficiencies in sealant application. Additionally, the integrity of the sealant should be checked for any gaps, cracks, or signs of deterioration. The flashings should be inspected for compatibility with the adjacent roof materials and any needed repairs or replacements performed. It is important to ensure that the flashing is adequately installed and sealed to prevent water leakage and damage to the roof and property.

Once the flashing is inspected, attention should be turned to the gutters and downspouts. These components are essential for proper roof drainage and should be checked for any signs of damage, clogging, or corrosion. Additionally, the fastenings and hangers should be inspected for proper installation and any needed repairs or replacements performed. It is important to ensure that these components are in good condition to prevent water accumulation on the roof and potential roof membrane damage.

Inspect the Gutters and Downspouts

Gutters and downspouts provide essential drainage for a roof and should be inspected for any signs of damage, clogging, or corrosion.

Regular maintenance of gutters is important to ensure that rainwater and melted snow can be effectively diverted away from the building and roof. This can include debris removal, ensuring proper water flow, and inspecting the gutter for any signs of damage or corrosion.

Inspecting the downspouts is equally important, ensuring that they are free from obstruction and properly draining water away from the building. If any of the downspouts are blocked, it can cause water to back up and potentially damage the building, roof, or foundation.

To ensure that the roof stays in good condition, it’s important to regularly inspect the gutters and downspouts, and perform any necessary maintenance.

This will transition seamlessly into the next subtopic of inspecting the roof vents.

Inspect the Roof Vents

Regularly inspecting roof vents is essential in order to ensure proper ventilation and prevent the buildup of moisture, which can lead to costly repairs. The vents should be checked for blockages or damage that could affect the air flow, as this can cause insulation and condensation problems.

To ensure optimum air flow, a thorough analysis should be undertaken and regular maintenance of the vents should be conducted to ensure smooth operation. Additionally, the vents should be checked to ensure that the seals are properly installed, as this could affect the air flow and lead to costly repairs if not addressed.

By regularly inspecting roof vents, commercial property owners can be assured that their ventilation systems are working properly and that costly repairs can be avoided.

Transitioning to the next step, property owners should inspect the roof drainage system to ensure that the water is being directed away from the building and not causing any damage.

Check the Roof Drainage System

A thorough analysis of the roof drainage system should be conducted to ensure that water is being directed away from the structure and not causing any damage. During the roof inspection, the inspector should check for the following:

  • Signs of proper drainage
  • Any clogged drains
  • Gutters and downspouts for signs of debris
  • Any missing or damaged flashing
  • Signs of ponding, sagging, cracking, corrosion, rust, or decay on the roof

The inspector should also pay attention to areas where water is accumulating and check for any cracks, holes, or other damage that could be causing the issue. Additionally, the inspector should also inspect the roof for any vegetation growth, which could impact drainage. By thoroughly inspecting the roof drainage system, the inspector can identify any potential issues and make the necessary repairs before they become a major problem.


In conclusion, a commercial roof inspection is an important part of maintaining a safe and secure building. It is essential to inspect the roof surface, flashing, gutters and downspouts, vents, and drainage system to ensure that the roof is in good condition.

Regular inspections can help to identify any potential problems before they become more serious and costly. By taking the time to inspect the roof, building owners can help to ensure that their roof is in good condition and can help to prevent costly repairs in the future.

Take action today and schedule a comprehensive commercial roof inspection with S.C.I. Roofing & Construction. Our dedicated professionals will provide you with peace of mind, knowing that your roof is in good hands. Contact us now to safeguard your building’s integrity and avoid future headaches.