The Donan On Demand app is designed to help adjusters streamline hail-related and wind-related residential roofing claims while still getting answers from licensed engineers.
Donan’s innovative roofing application for mobile devices guides property insurance adjusters through a field inspection protocol based on engineering best practices, ensuring the collection of necessary photographs and documentation. This process enables Donan Engineering, LLC (Donan), to provide a professional engineering conclusion within three business days, helping adjusters close claims faster without sacrificing accuracy or expert help.
- Designed for residential properties of 5,000 square feet or less
- For wind or hail damage to asphalt shingle investigations
- Industry-standard engineering evaluations
- On average, reports are generated within three business days
- Mobile-based inspection process
- Complex cases follow an escalation process to a local Donan field engineer
Download the App

Why Thousands Trust Donan
Donan offers streamlined engineering services designed to simplify complex property loss claims. With Donan On Demand, adjusters can efficiently manage their heavy caseload of hail and wind damage claims while benefiting from exceptional, detailed reports prepared by licensed forensic engineers.
Roofing Claim Resources
Porch Roof Case Study
A porch roof sagged after winter snows and maintenance. A Donan engineer applied their expertise and weather data to determine the cause.
Identifying Hail Damage to Asphalt Shingle Roofs
Each year, thousands of property owners report hail damage to asphalt shingle roofs. Know what to look for that may verify hail damage.
Residential Roofing Fundamentals for Adjusters eBook
Adjusters should know about the different types of residential roof coverings, roof construction and components, and the perils that might diminish their functionality.





