Patrick Shaughnessy

Senior Associate


Patrick Shaughnessy has more than twenty years of experience in the roofing and waterproofing industry. He has worked as both a contractor’s representative and as a roofing and waterproofing consultant. As a consultant, Mr. Shaughnessy has been involved in hundreds of roof assessments, utilizing the most current nondestructive technologies such as nuclear moisture testing and infrared imaging. He has investigated water leakage, material compatibility, durability, and condensation issues on numerous projects, including the development of short- and long-term repair recommendations. These projects have often included repair/replacement design and budget estimates. Mr. Shaughnessy has experience with all major low-slope and steep-slope roofing systems, including built-up roofing, modified bitumen roofing, single-ply roof systems, slate, tile, asphalt shingle, and sheet metal roof panels.

Prior to joining WJE, Mr. Shaughnessy was a senior project manager at a building envelope consulting firm and a project manager at a firm specializing in roofing and waterproofing consulting. He has extensive experience in the preparation of roofing and waterproofing repair/replacement documents. He has also provided project management services on numerous roofing projects, from the initial assessment stage through project closeout, including all contractual administration requirements. In addition, Mr. Shaughnessy has performed design reviews for new construction projects to verify that current codes were followed and that the designs complied with manufacturer and owner requirements.


Repair and Rehabilitation

  • City of Lake Forest Train Station - Lake Forest, IL: Slate roof replacement*
  • Allstate Insurance Company - Northbrook, IL: Single-ply roofing replacements*
  • Sudler, Inc. - Chicago, IL: Condominium roofing replacements*
  • Private College - Ventura, CA: Tile- and low-slope roofing replacements*
  • St. Mary of the Lake University - Mundelein, IL: Slate roof replacement specifications and project oversight*
  • Defense Contractor - Aurora, CO: Low-slope roofing replacement specifications*
  • School District - Elgin, IL: Roofing repair and replacement specifications and project oversight*


Roofing and Waterproofing

  • Chicago Public Schools - IL: Roofing assessments with nuclear moisture survey *
  • Nuclear Power Generating Plant - Covert, MI: Leak investigation with repair scope of work*
  • Automotive Foundry - Brillion, WI: Roofing assessments, replacement specifications, and project oversight*
  • Various Condominium Associations - Chicago, IL, and surrounding areas: Roofing assessments, replacement specifications, and project oversight*


Failure Analysis

  • Beazer, Inc./Koppers Phenolic Foam Product Liability Assessments - Multiple Locations: Investigate roof insulation failures*
  • Office Building - Schaumburg, IL: Premature roof failure analysis*
  • Grocery Store - Bolingbrook, IL: Wind damage investigation*

*Indicates with previous firms

Professional Affiliations

Construction Specifications Institute (CSI)
International Institute of Building Enclosure Consultants (IIBEC) - Chicago Area Chapter


Construction Documents Technician (CDT)
Registered Roof Consultant (RRC)
Registered Roof Observer (RRO)


University of Iowa
Bachelor of Arts, Communication Studies, 1991