Vident Partners provides vetted roofing expert witnesses for cases involving storm damage disputes, roof system failures, installation defects, leak causation and roofer fall injuries. Request a referral today.
Find a Roofing Expert →Overview
A roofing expert decides why a roof failed and when: whether a storm did it, whether the installation was wrong from the start, or whether age and maintenance caught up with it. Most cases come down to that choice, because insurance coverage, warranty rights and contractor liability each follow from the cause. This page covers roof systems and roofing practice. Structural framing belongs to a structural engineer, water inside the wall belongs to a mold and water intrusion expert, how a claim was adjusted belongs to a claims handling expert, and a roofer's fall can involve a fall protection expert as well.
The expert reads the roof itself first. Then come the contract, the product data and warranty, permit and inspection records, storm data, drone or aerial imagery over time, repair invoices, and photographs from before and after the event. Historical imagery is often the best evidence, because it can show an open area or a tarp that predates the storm.
Insurance disputes center on whether a covered event caused the damage. The expert looks for a pattern that fits the storm: direction, location on the roof, how adjacent items such as vents and gutters were marked, and whether exposed mats and creases look fresh or weathered. Storm reports help set the date and likely size, but they describe an area and not a single house, so the roof still has to be examined.
Wind leaves a recognizable signature in many cases, and installation problems can mimic it. FEMA's Hurricane Michael team reported widespread poor wind performance of asphalt shingles, saying the reason is not fully understood, and that studies have identified unsealed and partially unsealed shingles as sources of failures during high-wind events 1. In its review of the 2004 hurricane season, FEMA reported that on roofs with damaged shingles, almost all the shingle fasteners were located too high on the shingle 2. So a shingle that blew off may point to wind, to the nailing pattern, to a failed seal, or to all three. An opinion should say which fits the evidence and which alternatives remain open.
FEMA's handbook for public facilities also supports routine checks: it says inspections should be done after high wind events to assess whether storm-related damage occurred 3. A record of those checks, or the lack of one, can matter in a dispute over when a leak began.
Leaks concentrate at details. Flashings, valleys, penetrations, parapets and transitions fail more often than the field of the roof. The expert compares the installed work against the manufacturer's written instructions, the plans and the adopted building code. Product warranties are often conditioned on those instructions, so a warranty claim can turn on the same inspection. Test cuts and core samples show the layers, the fasteners and whether a new roof went over old material.
Commercial systems add membrane seams, insulation attachment and drainage. Ponding, wind uplift at edges and fastener back-out each leave different evidence. The fight is often over who owned the design decision: the architect, the consultant or the roofer.
Federal rules draw a line at slope. A low-slope roof has a slope less than or equal to 4 in 12, and a steep roof is anything greater 4. Each employee on a steep roof with unprotected sides and edges 6 feet or more above lower levels must be protected by guardrails with toeboards, safety nets or personal fall arrest 5. Low-slope work has its own list of options 5. So the expert measures the pitch and heights, and then asks who planned the protection, what was on site and what the crew actually used. Those facts decide most of these cases, along with the contract chain that sets who controlled the work.
Roofing work is judged by the code adopted locally on the permit date, the product instructions and trade practice. A code section on reroofing may decide how many layers may remain, or whether a whole slope must be replaced when only part of it was damaged. Matching disputes and code upgrade claims often depend on the policy language, so the expert should supply facts and leave coverage to the coverage expert.
Look for someone who has installed, inspected and repaired the same type of roof in the same region: steep-slope shingle, tile, metal or low-slope membrane. Experienced roofing contractors, registered roof consultants and engineers can all fit. A licensed contractor where the state licenses them, or a PE for design questions, adds weight. Ask whether the expert walked this roof, opened it where needed, and can show that the same method has been applied to storms and non-storm losses alike.
Under OSHA's rules, each employee on a steep roof with unprotected sides and edges 6 feet or more above lower levels must be protected from falling.
Case Types
Hail and wind claims on residential and commercial roofs
Installation defects and premature failure
Roof leak causation and water damage
Product warranty disputes
Contractor workmanship and payment claims
Matching and code upgrade disputes on partial repairs
Roofer falls and fall protection
Fraudulent or inflated storm repair claims
Qualifications
Related Specialties
FAQ
Look for someone who has installed, inspected and repaired the same type of roof in the same region. Contractors, registered roof consultants and engineers can all fit. The expert should have walked the roof and applied the same method to storm and non-storm losses.
They look for a pattern that fits the storm: direction, location on the roof, marks on adjacent items, and whether the exposed material looks fresh or weathered. Storm reports and dated aerial imagery help set the timeline, but they do not replace examining the roof.
Yes. FEMA teams have reported unsealed shingles and fasteners placed too high on the shingle as factors in shingle loss. A careful report separates what wind did from what the installation allowed, and says which alternatives remain open.
OSHA draws a line at slope. A steep roof is steeper than 4 in 12, and an employee there with unprotected sides and edges 6 feet or more above lower levels must have guardrails with toeboards, safety nets or personal fall arrest. Low-slope roofs have their own list of options.
Often. Warranties are commonly conditioned on following the written instructions, so the same inspection can decide both a warranty claim and a workmanship claim. The warranty document controls.
In general, roofing expert fees are determined by the expert themselves, based on a variety of criteria. Among those criteria are experience, roof size and access, the need for test cuts or drone work, travel and the amount of record review. Vident does have some influence over expert fees by comparing experts within a specialty, but ultimately it is a personal decision by the expert.
Sources
Vident Partners connects attorneys with qualified roofing expert witnesses. Complimentary consultation, 24-hour turnaround, no obligation.
Request an Expert →