A roof can affect repair negotiations, insurance questions, and a buyer’s first years of ownership. During a home inspection, we evaluate the visible and accessible roof system, look for patterns of moisture intrusion, and document conditions that may need maintenance, repair, or specialist review.
Signs You May Need a New Roof—or a Professional Repair
No single symptom automatically means a roof must be replaced. The pattern, location, extent, material, and workmanship all matter. Warning signs that deserve closer evaluation include:
- Widespread missing, lifted, cracked, curled, or brittle roofing materials
- Exposed shingle mat, heavy granule loss, open seams, blistering, or deteriorated roof surfaces
- Repeated patches or repairs across several roof areas
- Damaged, loose, or incomplete flashing at chimneys, walls, valleys, skylights, and plumbing vents
- Visible sagging, soft areas, uneven decking, or structural movement
- Active leakage, recurring ceiling stains, damaged sheathing, or moisture in accessible attic areas
- Drainage problems such as overflowing gutters, improperly discharged downspouts, or evidence of ponding on low-slope roofs
Roof Conditions We Commonly Evaluate in the Delaware Valley
Homes across Greater Philadelphia use many roof designs. Suburban properties often have steep asphalt-shingle roofs, while Philadelphia rowhomes, additions, porches, and some older homes commonly include low-slope or flat sections. We pay close attention to roof-to-wall transitions, parapets, penetrations, drainage points, flashing, and areas where different roof materials meet.
Inside accessible attics and upper areas, we look for staining, damaged sheathing, daylight at openings, poor ventilation, and other visible evidence that may help connect an exterior concern to its interior impact. A dry stain is not automatically an active leak, but it still deserves context and documentation.
What a Home Inspector Checks
- Roof coverings, ridges, valleys, edges, and visible fastening or installation concerns
- Flashing at chimneys, sidewalls, penetrations, skylights, and roof intersections
- Gutters, downspouts, scuppers, and visible drainage conditions
- Visible roof decking, framing, insulation, and ventilation from accessible interior areas
- Ceilings and finishes for evidence of active or previous moisture intrusion
- Prior repairs, multiple roof layers where visible, and conditions that warrant specialist evaluation
Roof Age Is Context—not a Diagnosis
Installation date, material, exposure, workmanship, maintenance, and storm history all affect performance. Age alone does not prove that a roof requires replacement, and a visual inspection cannot predict exactly how long a roof will last. Our report describes the conditions observed on the inspection date so the buyer can make an informed decision.
When Further Evaluation Is Appropriate
We may recommend a qualified roofing contractor when the roof is unsafe or inaccessible, documentation is unclear, active leakage is suspected, repairs appear incomplete, or significant deterioration is visible. A roofer can perform specialized evaluation, discuss repair versus replacement, and provide cost or remaining-service-life opinions that are outside a standard home inspection.
Roof Inspection Limitations
Weather, height, slope, roofing material, surface condition, and safe access determine how a roof can be inspected. Depending on conditions, a roof may be observed by walking the surface or from the ground, a ladder, accessible windows, or another safe vantage point. Concealed conditions cannot be confirmed without invasive work.
Questions Homebuyers Can Ask Before Closing
- When was the roof installed, and are permits, warranties, invoices, or repair records available?
- Have there been prior leaks, insurance claims, or repeated repairs?
- Which findings need immediate specialist review, and which are maintenance items?
- Does the property have low-slope sections or roof areas that were not safely accessible?
Clear Findings and Practical Next Steps
TMK provides a same-day, photo-rich report that identifies observed roof concerns and explains practical next steps. Review a sample report, explore our residential inspection service, or request an inspection.
TMK serves homebuyers across Philadelphia and surrounding Pennsylvania counties and northern Delaware. New Jersey inspections are available through Chris Burns.
Reviewed by the TMK Inspections team in September 2026. All three TMK inspectors are InterNACHI Certified Professional Inspectors.