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 Expert  107816

Expert in Roof Materials Technology

Available for your Consulting and Expert Witness Needs

Wisconsin (WI)
Education Work History Career AccomplishmentsPublicationsConsulting Services Expert Witness

Summary of Expertise: Listed with other top experts in: 
ROOF SYSTEMS. Expert has worked with low slope, insulated roof assemblies using mechanical fasteners, adhesives, or ballast to provide attachment and resist wind uplift; he has also designed steep roofing, domes, and standing seam metal roof assemblies. All of these systems have interacting components to weatherproof and often insulate the top surface of a building. The roof system separates the interior environment from the exterior elements.

ROOF MATERIALS. Expert has worked with asphalt, modified bitumen, and coal tar pitch built-up roofs, plastic (PVC), rubber (EPDM), Hypalon, metal, sprayed urethane foam, and other single ply roof materials, as well as felts made from asbestos, organic material, polyester, and fiberglass, and acrylic and urethane coatings. He has published numerous technical articles on the design, use, and performance of these materials under various conditions, including fire and wind.

RIGID INSULATIONS. Expert has done extensive work on expanded polystyrene, extruded polystyrene, urethane, polyisocyanurate, phenolic foam, perlite, and fiberglass rigid insulation boards used as part of the thermal envelope of a building system. His work also includes extensive testing of physical and thermal properties, including the establishment of design values for these materials.

BUILDING STRUCTURES. Expert has worked with a variety of commercial, industrial, and specialty structures, including roof and wall panel systems composed of precast concrete, structural steel, light gage steel, poured concrete, gypsum panels, wood deck systems, dome structures, and plaza decks, including design, investigation, and field testing.

MATERIAL DEVELOPMENT AND TESTING. Expert has extensive laboratory and field experience in the development and testing of wall panels and roof system components for physical, structural, and thermal performance in a variety of temperature and humidity conditions.

FOAM INSULATION. Expert has extensive design, laboratory, and field experience using a variety of these materials in wall and roof systems.

SINGLE PLY MEMBRANE. Expert has significant design, laboratory, and field expertise using a variety of single ply membrane systems.

BITUMEN. Expert has conducted extensive field and laboratory testing of bitumens used in roof materials.

BUILT-UP ROOF. Expert has designed many built-up roof systems. He also conducted numerous field investigations and laboratory tests.

WIND LOADS. Expert has conducted numerous studies on wind loads on wall and roof elements using ASCE, ANSI, and FM guidelines.

NON-WOVEN POLYESTER MAT. Expert has extensive laboratory and field experience with non-woven polyester mat embedded in hot bitumen, cold process, or prefabricated modified bitumen sheets for use as a roofing material.


building material development


building materials testing


modified bitumen (roofing)




rigid insulation




roofing material


roofing membrane


roofing system


construction defect




modified bitumen roof


EPDM roof

Show Secondary and Basic Areas of Expertise
Expert may consult nationally and internationally, and is also local to the following cities: Milwaukee, Wisconsin;  Madison, Wisconsin;  Kenosha, Wisconsin;  Racine, Wisconsin;  Appleton, Wisconsin;  Rockford, Illinois;  Aurora, Illinois;  Elgin, Illinois;  Waukegan, Illinois;  and Schaumburg, Illinois.

Often requested
with this expert:

Engineering, Manufacturing Operations, and Building Products
Asphalt Materials, Paving, Pavements, Roads, Roofing,...
Construction Materials
Portland-Based Building Materials, Particularly Cellulose...

Year   Degree   Subject   Institution  
1973   PhD   Civil Engineering   University of Wisconsin  
1969   MS   Structural Engineering   University of Wisconsin  
1968   BS   Civil Engineering   University of Wisconsin  
1967   BS   Agriculture   University of Wisconsin  

Work History:
Years   Employer   Department   Title  

1978 to





Vice President and President


1974 to 1978


Engineering Research Consultants, Inc.



Vice President


1973 to 1974


State University of New York, Buffalo


Civil Engineering Department


Assistant Professor


1972 to 1973


University of Wisconsin, Madison


Engineering Experiment Station


Project Assistant


Career Accomplishments:

Expert a member of the American Society of Civil Engineers (ASCE), National Society of Professional Engineers (NSPE), Construction Specifications Institute (CSI), American Arbitration Association-Panel of Arbitrators, and the American Society for Testing and Materials (ASTM).


Expert is a registered Professional Engineer in Wisconsin.

Professional Appointments

Expert is a member of the CIB/RILEM International Committee on Single Layer Roofing, and currently serves on the Roof Advisory Panel for the DOE/Oak Ridge National Laboratory's Roof Test Center. He has served on the Board of Regents for the Roofing Industry Education Institute (RIEI), and has served as Technical Advisor to the Midwest Roofing Contractors Association for over a decade.

Selected Publications and Publishers  
 - Conference on Roofing Technology at the National Bureau of Standards  
 - Research Report  
 - RSI Magazine  
 - Roofing Research and Standards Development, American Society of Testing and Materials (ASTM)  

Consulting Services:
Recent Client Requests:
  • Expert in material testing building products imports for consulting on roofing and sheathing imports.
  • Commercial Roofing expert for advice on prevention of mold, loss of heat, and rain penetration avoidance.
  • Expert for consulting on Metal Roof.
  • Acrylicresin expert for consulting on acrylic waterproofing.
  • Marketing expert for roofing for consulting on synthetic roofing underlayment.
Click the green button above to contact Expert for a free initial screening call regarding your expert consulting needs.  Expert is available for consulting to corporate, legal and government clients.  Remember, your initial screening call to speak with Expert is free.

Expert Witness:
Recent Litigation Client Requests:
  • Polymer failure analysis expert needed for consulting on single-ply roofing membrane.
  • Expert in roofing materials for consulting on roofing materials.
  • Asbestos roof expert for consulting on litigation.
  • Expert in Roofing.
  • Metal roof expert witness for consulting on metal roof construction.
  • Expert in roof inspections and review for duplex style condos.
  • Chemical analysis expert in Illinois for consulting on chemical for testing a commercial roof.
  • Expert in asphalt materials for consulting on asphalt shingle case.
  • Litigation engineering expert prefabricated buildings for consulting on Project management and integrity ofdesign of a metal prefabricated building.
Click the green button above to contact Expert for a free initial screening call regarding expert testimony, litigation consulting and support, forensic services, or any related expert witness services.  A few litigation needs include product liability, personal injury, economic loss, intellectual property (patent, trademark, trade secret, copyright), and insurance matters.  Remember, your initial screening call to speak with Expert is free.

Additional Skills and Services:

Expert has conducted numerous seminars and participated in many roofing conferences throughout the U.S. and Canada, as well as International Symposiums on Roofing Technology in Europe.


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