Direct Answer
A commercial roof condition report should provide a clear, documented snapshot of the roof’s condition at the time of inspection. It should identify the existing roof system, document observed deficiencies, describe the condition of major roof components, identify areas requiring immediate or preventive attention, and provide practical recommendations for repair, maintenance, further investigation, or replacement.
A useful condition report should allow an owner, property manager, buyer, lender, facility team, or other decision-maker to understand what roof is present, what condition it is in, what problems were observed, how serious those problems are, and what should happen next.
IIBEC’s guidance for roof condition surveys describes the work as observing, identifying, and documenting roof conditions. Reports may use checklist or narrative formats and may include photographs, video, and a roof drawing showing penetrations and findings. :contentReference[oaicite:0]{index=0} ASTM’s current E2018-24 framework similarly emphasizes documenting the purpose and scope, walk-through observations, document review, photographs, physical deficiencies, recommendations, cost opinions where applicable, qualifications, limitations, and supporting exhibits. :contentReference[oaicite:1]{index=1}
Who This Applies To
- Commercial property owners and asset managers
- Property and facility managers
- Commercial real estate buyers and investors
- Lenders and financing teams
- Developers and owner’s representatives
- Insurance and risk-management teams
- Organizations planning roof repairs or replacement
- Consultants preparing a roof condition assessment or PCA
Not for: A basic condition report should not automatically be treated as a destructive investigation, warranty, engineering certification, code-compliance certification, or guarantee that the roof will remain watertight for a particular period. The scope and limitations of the specific assessment control what conclusions can reasonably be drawn.
1. Property and Inspection Information
The report should establish exactly what property and roof area were evaluated.
- Property name and address
- Building identification where multiple buildings are present
- Date of inspection
- Inspection personnel and qualifications
- Weather conditions during the inspection
- Areas accessed and areas that could not be accessed
- Purpose and requested scope of the assessment
- Documents or information supplied before the inspection
This matters because a condition report is a point-in-time assessment. ASTM’s PCA guidance specifically states that users should rely on a property condition report for the point in time when the consultant’s observations and research were conducted. :contentReference[oaicite:2]{index=2}
2. Existing Roof System Description
The report should explain what is actually installed rather than simply stating that the roof is “old” or “in fair condition.”
Where information is available, the report should identify:
- Roof system type
- Membrane or roof covering material
- Approximate installation date or age
- Insulation type and configuration
- Deck type, where known
- Number and configuration of roof areas
- Approximate roof dimensions or quantities
- Roof slopes
- Perimeter conditions
- Flashing systems
- Drainage configuration
- Major penetrations and rooftop equipment
IIBEC’s roof asset-management guidance identifies roof assembly information, roof drawings, penetrations, edge details, adjoining walls and sheet-metal accessories as important field information. :contentReference[oaicite:3]{index=3}
3. Roof Plan and Location of Findings
A strong report should show where conditions occur, not just describe them in general terms.
The report may include a roof plan identifying:
- Roof areas or sections
- Drains and scuppers
- Major curbs
- HVAC equipment
- Pipe penetrations
- Roof access points
- Perimeter edges
- Observed deficiencies
- Areas of ponding
- Moisture investigation locations
- Core locations, if performed
IIBEC notes that a drawing will generally be prepared for a roof condition survey to present the layout of penetrations and findings. :contentReference[oaicite:4]{index=4}
4. Condition of the Roof Membrane or Covering
The report should document the observable condition of the primary roof surface.
Depending on the roof system, this may include observations of:
- Surface weathering
- Open seams or failed seams
- Blisters or ridges
- Splits, punctures or tears
- Membrane shrinkage
- Exposed reinforcement
- Surface erosion
- Coating deterioration
- Loose or displaced materials
- Mechanical damage
- Previous repair areas
- Evidence of recurring water intrusion
Conditions should be documented with photographs and specific locations whenever practical. IIBEC’s roof inspection guidance identifies roof material type, moisture readings, core samples, roof-system layers, drainage, penetrations, terminations, deficiencies and red-flag conditions among useful inspection information. :contentReference[oaicite:5]{index=5}
5. Flashings, Edges and Penetrations
Many roof problems occur at transitions rather than in the middle of the field membrane. The report should therefore address:
- Base and perimeter flashings
- Wall flashings
- Parapet conditions
- Metal edge systems
- Equipment curbs
- Pipe penetrations
- Pitch pockets
- Expansion joints
- Skylights
- Roof hatches
- Other roof-mounted accessories
Each significant deficiency should identify its location, observed condition, apparent significance, and recommended next step.
6. Drainage and Ponding Water
The report should evaluate how water is intended to leave the roof and document visible drainage problems.
This may include:
- Roof drains
- Scuppers
- Gutters and downspouts
- Drain strainers
- Blocked drainage components
- Low areas
- Ponding water
- Evidence of chronic ponding
- Drainage-related membrane deterioration
Where drainage deficiencies appear significant, the report should distinguish between routine maintenance issues and conditions that may require further technical evaluation.
7. Interior and Building Evidence of Roof Problems
A roof condition assessment should not necessarily stop at the roof surface. Where the scope allows, the evaluator should document relevant interior evidence such as:
- Ceiling staining
- Water stains
- Wet insulation or interior finishes
- Active leakage reported by occupants
- Evidence of previous repairs
- Corrosion associated with water intrusion
- Moisture-related deterioration
The roof asset-management approach described by IIBEC includes cursory observation of the building interior and exterior as part of facility inspection/evaluation. :contentReference[oaicite:6]{index=6}
8. Moisture and Additional Testing
A visual condition report should clearly distinguish between observations made visually and information obtained through additional testing.
Depending on the purpose and scope, additional investigation may include:
- Moisture surveys
- Core cuts
- Infrared thermography
- Electronic leak detection
- Water testing
- Other specialized testing
IIBEC identifies multiple assessment methods for evaluating roof-system functionality and damage, including water testing, wind-uplift testing, infrared thermography, moisture surveys, electronic leak detection and visual review. :contentReference[oaicite:7]{index=7}
Testing should not be implied to have been performed if it was outside the agreed scope.
9. Deficiency List and Severity
The report should convert observations into a usable deficiency list. A practical report should distinguish between conditions that require immediate attention, conditions that should be addressed preventively, and conditions that can be monitored or handled through routine maintenance.
| Priority | Typical Meaning |
|---|---|
| Immediate | Condition requiring prompt action because of active leakage, significant deterioration, safety concerns, or potential for substantial damage. |
| High | Material deficiency that should be addressed in the near term. |
| Preventive | Condition that should be corrected to reduce the likelihood of future failure. |
| Routine Maintenance | Condition appropriate for normal maintenance or monitoring. |
The exact rating terminology should be defined in the report rather than assuming that terms such as “fair” or “poor” mean the same thing to every reader. IIBEC guidance on condition assessment emphasizes consistent methodology, describing the overall condition, identifying conditions needing attention, explaining severity, and defining grading terminology when grades are used. :contentReference[oaicite:8]{index=8}
10. Remaining Service Life
Where the scope and available evidence support it, the report should provide an estimate of expected remaining service life or explain why a reliable estimate cannot be established.
Remaining service life should not be based solely on chronological age. Observed deterioration, roof-system type, maintenance history, moisture conditions, previous repairs, installation quality, exposure and other relevant factors can affect the assessment.
A condition report should clearly distinguish an estimated remaining service life from a guarantee that the roof will perform for that exact period.
11. Recommendations
Every significant finding should lead to a practical recommendation. Depending on the condition, recommendations may include:
- Routine maintenance
- Localized repair
- Leak investigation
- Additional testing
- Monitoring
- Restoration or coating
- Partial replacement
- Full roof replacement
- Further consultant investigation
The recommendation should explain why the action is being proposed and, where appropriate, identify the priority and timeframe.
12. Cost Opinions When the Scope Requires Them
If the condition assessment is being prepared for capital planning, acquisition, financing, or a property condition assessment, the report may include opinions of probable costs for addressing identified physical deficiencies.
ASTM E2018-24 specifically includes opinions of costs to address observed physical deficiencies as part of the property condition reporting framework. :contentReference[oaicite:9]{index=9}
These should be identified as cost opinions rather than represented as firm contractor proposals unless a separate bidding process has been performed.
13. Photographs and Supporting Exhibits
Photographs should support the written findings rather than simply fill pages. Useful photographs show:
- Overall roof conditions
- Representative roof areas
- Specific deficiencies
- Flashing conditions
- Drainage problems
- Penetrations and curbs
- Interior evidence of leakage
- Previous repair areas
- Testing locations
Photos should be labeled or otherwise tied to locations in the report so the reader can determine where each condition occurs.
14. Scope, Limitations and Qualifications
The report should clearly state what was and was not inspected.
Important limitations can include:
- Inaccessible roof areas
- Unsafe areas
- Concealed conditions
- Limited interior access
- Weather limitations
- Testing that was not performed
- Documents that were unavailable
- Conditions that require destructive investigation
ASTM E2018-24 specifically includes qualifications, limiting conditions and exhibits within the property condition report framework and recognizes that additional or enhanced due diligence may be appropriate depending on the user’s objectives and risk tolerance. :contentReference[oaicite:10]{index=10}
15. What a Complete Commercial Roof Condition Report Should Answer
| Question | Report Should Address |
|---|---|
| What roof is installed? | System type, assembly information and major components. |
| What condition is it in? | Overall condition and individual component findings. |
| Where are the problems? | Roof plans, locations and photographs. |
| How serious are they? | Priority, severity and implications. |
| Is moisture present? | Observed evidence and testing results when testing is included. |
| How long might the roof last? | Estimated remaining service life where supportable. |
| What should the owner do? | Repair, maintenance, monitoring, further investigation or replacement recommendations. |
| How much could corrective work cost? | Cost opinions when included within the assessment scope. |
| What was not evaluated? | Access limitations, exclusions and other qualifications. |
Bottom Line
A strong commercial roof condition report should be more than a collection of photographs or a simple statement that the roof is “good” or “bad.” It should connect existing roof information → observed conditions → documented locations → severity → remaining service life → recommended action.
The exact level of investigation depends on why the report is being prepared. A routine current-condition assessment, acquisition due diligence inspection, lender PCA, insurance-related inspection, forensic investigation, and replacement-design investigation can require different scopes. ASTM specifically notes that the appropriate level of assessment depends on the user’s objectives, risk tolerance, schedule and budget. :contentReference[oaicite:11]{index=11}
Related Questions
- What is a commercial roof current condition inspection?
- What is a commercial roof due diligence inspection, and how does it differ from a routine inspection?
- What should a commercial roof due diligence report include?
- When is roof core sampling appropriate during due diligence?
- How much roof moisture is too much?
- When does a commercial roof need a full assessment instead of another spot repair?
Sources
- IIBEC – Registered Roof Consultant Application and Study Guide
- IIBEC – Roof Asset Management
- IIBEC – Technical Advisory 025-2025: Roof System Functionality
- ASTM E2018-24 – Property Condition Assessments
- ASTM – Property Condition Assessment Training and PCR Overview
Last reviewed
September 29, 2026
Related Resources
- Commercial Roof Due Diligence Inspection
- Commercial Roof Due Diligence Report
- How Often Should a Roof Survey Be Updated?
- What Is a Deck Core Cut and What Does It Reveal?
Need Commercial Roofing Help?
ShieldLine Roofing can help commercial property owners document roof conditions, identify repair and maintenance priorities, investigate recurring problems, and plan appropriate commercial roofing work.
Disclaimer: This information is for general educational purposes and does not replace project-specific advice from a qualified roofing consultant, architect, engineer, contractor, manufacturer, or other applicable professional. The appropriate inspection scope depends on the property, roof system, intended use of the report, and applicable requirements.
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