A commercial roof is one of the most important assets protecting a building, its contents, employees, and daily operations. Yet many property owners do not have a clear understanding of their roof's actual condition until a leak or major failure occurs. A Facility Condition Assessment (FCA) can help change that by providing a detailed picture of the roof's current condition and identifying repairs, maintenance, and future capital needs.

For commercial property owners and facility managers in Detroit, a thorough roof assessment is especially important. Michigan weather exposes roofing systems to snow, ice, rain, wind, summer heat, and repeated freeze-thaw cycles. A professional assessment can help identify problems before they become expensive emergencies.

What Is a Facility Condition Assessment?
A Facility Condition Assessment is a systematic evaluation of a building and its major components. When the assessment includes the commercial roof, the goal is to document the roof's physical condition, identify deficiencies, estimate its remaining service life, and help the owner plan future expenditures.

A good assessment should go beyond simply stating that a roof is "good" or "bad." Facility managers need useful information that can support maintenance decisions and long-term budgeting.

At Motor City Roofers, we believe the commercial roof portion of an assessment should provide enough detail for a property owner to understand what needs attention today, what can wait, and what may require significant investment in the future.

Roof Type and System IdentificationThe first step is identifying exactly what is installed.
A commercial building may have TPO, PVC, EPDM, modified bitumen, built-up roofing, metal roofing, a coating system, or a combination of systems. The assessment should document the roof type, approximate installation date when known, manufacturer information, and any available warranty information.

The report should also identify the number of roof sections and differences between them. A large commercial facility may have several roof areas that were installed or repaired at different times.

Overall Roof Condition
The assessment should provide a detailed evaluation of the roof's overall physical condition.

Inspectors should look for issues such as:

• Cracked or damaged membranes
• Open seams
• Punctures and tears
• Blisters or bubbles
• Deteriorated flashing
• Loose or damaged edge metal
• Exposed fasteners
• Deteriorated sealants
• Ponding water
• Debris accumulation
• Signs of previous repairs

Photographs are particularly valuable. A written description tells the facility manager what was found, while photographs show exactly where the problem exists.

Drainage and Ponding Water
Drainage deserves special attention during a commercial roof assessment.
Inspectors should examine internal drains, scuppers, gutters, downspouts, and other drainage components. They should also look for areas where water remains on the roof after rainfall.

Ponding water can place additional stress on roofing materials and may indicate problems with drainage design, clogged drains, settlement, or inadequate slope.

In Detroit, drainage problems can become even more significant when standing water freezes during winter. Ice expansion and repeated freeze-thaw cycles can contribute to deterioration of roofing components.

Flashings and Penetrations
Roof penetrations are common sources of commercial roof leaks. HVAC equipment, vents, pipes, skylights, electrical components, and other equipment create openings that must be properly sealed.

A comprehensive assessment should examine the flashing and seals surrounding these penetrations.
Inspectors should also examine wall flashings, parapet details, expansion joints, curbs, and perimeter conditions. These areas can deteriorate differently from the main roof membrane and therefore deserve individual attention.

Insulation and Moisture
The visible roof surface does not always tell the entire story.
Moisture can become trapped underneath a roofing membrane and damage insulation or other components of the roof assembly. Wet insulation can also reduce thermal performance.

Depending on the building and circumstances, additional diagnostic methods such as infrared scanning or moisture testing may help locate concealed problems.

Identifying wet areas early can allow property owners to address localized damage rather than waiting until deterioration spreads throughout an entire roof section.

Roof Deck and Structural Concerns
The assessment should also consider the condition of the roof deck.
Depending on the building, the deck may be metal, concrete, wood, or another material. Signs of corrosion, deterioration, deflection, or other structural concerns should be documented.

If an inspector identifies conditions that may indicate a structural problem, the issue should be clearly identified for further evaluation by an appropriately qualified professional.

Rooftop Equipment and Traffic
Commercial roofs frequently serve as work areas for HVAC technicians, maintenance personnel, contractors, and other employees.

An FCA should document rooftop traffic patterns and identify areas where foot traffic may be damaging the roof membrane. Walk pads or designated pathways may be appropriate in high-traffic locations.  The assessment should also consider the condition of rooftop equipment supports, curbs, access points, and other components that interact with the roofing system.

Previous Repairs
A roof with numerous patches may tell an important story.
The assessment should document visible previous repairs and, when possible, determine whether those repairs appear to be performing properly.

Multiple recurring repairs in the same area could indicate that the underlying problem has not been fully corrected.

Understanding repair history can help a facility manager determine whether continued repairs make sense or whether a more comprehensive restoration or replacement strategy should be considered.

Remaining Service Life
One of the most useful parts of a facility condition assessment is an estimate of the roof's remaining service life.

This estimate should consider more than age. A relatively old roof that has been properly maintained may perform better than a newer roof that has suffered extensive damage or poor maintenance.
Factors can include:

• Current roof condition
• Installation quality
• Maintenance history
• Material type
• Weather exposure
• Moisture intrusion
• Previous repairs
• Drainage performance
• Manufacturer requirements

A remaining-life estimate helps facility managers plan capital expenditures rather than being forced into emergency decisions.

Prioritizing Repairs
Not every roofing deficiency requires immediate attention.
A useful FCA should categorize recommendations according to urgency. For example, critical deficiencies may require immediate action, while routine maintenance issues can be addressed through scheduled work.
This allows facility managers to focus limited maintenance budgets where they can have the greatest impact.
Developing a Long-Term Roofing PlanThe ultimate purpose of an assessment is not simply to create a list of problems. It should help the property owner develop a long-term plan.

That plan might include:
Immediate repairs: Address active leaks, safety concerns, or significant damage.
Preventive maintenance: Correct smaller deficiencies before they become major problems.
Roof restoration: Consider coatings or other restoration options when the existing system remains structurally suitable.
Replacement planning: Establish a realistic timeline and budget for eventual replacement.
This approach can turn roofing from an unpredictable expense into a manageable part of the facility's capital planning.

Why Detroit Businesses Should Take Roof Assessments Seriously
Detroit-area commercial buildings face challenging seasonal conditions. Snow and ice can stress roofing systems during winter, while summer heat and ultraviolet exposure place additional demands on membranes and flashing.  Older commercial buildings may also have multiple generations of roofing materials and repairs.

A professional assessment provides facility managers with information they can use to make informed maintenance and budgeting decisions.

Conclusion
A Facility Condition Assessment should provide much more than a quick inspection of the roof surface. It should examine the entire roofing system, including membranes, seams, flashings, drainage, penetrations, insulation, structural components, rooftop equipment, previous repairs, and maintenance requirements.

Most importantly, the assessment should translate those findings into a practical plan.
At Motor City Roofers in Detroit, Michigan, we understand that commercial roofing is a long-term investment. Identifying problems early, prioritizing repairs, and planning for eventual replacement can help property owners reduce surprises and protect their buildings for years to come.

A roof assessment isn't simply about finding today's problems. It's about understanding where your roof stands today—and knowing what needs to happen next.