Haag's Accredited Testing Lab is Open, Accepting Assignments Now

Haag's Lab and Offices Relocated. Our expanded Lab is open now!

Haag Engineers Establish Scholarship for Engineering Students

Haag Engineers Terry Taylor and Stoney Kirkpatrick established the "John C. Westkaemper Scholarship in Aero...

Haag Welcomes David Ey, P.E., new Civil Engineer in Chicago!

Haag Welcomes David Ey, P.E., new Civil Engineer in Chicago!

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Principal Engineer

Robert N. Fleishmann P.E.

Principal Engineer

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Primary Areas of Failure and Damage Consulting

  • Mechanical Failures
    Industrial, commercial, residential
    Equipment failure evaluation
    HVAC equipment
    Process equipment
    Rotating equipment
    Failure to warn issues
    Fire and explosion analysis
  • Accident Analysis from Mechanical Failure
  • Vehicular Evaluations
    Fire causation
    Component malfunction 
  • Plumbing
    Piping and valves
    Fire protection systems
    Component failure
    Residential fixtures
    Product liability
  • Roofing Systems
    Quality of manufacture and application
    Cause, nature, and extent of damage from hail and wind
    Remaining service life
  • Code and Standards Compliance
Licensed Professional Engineer in the States of:
Alabama, Arkansas, Florida, Louisiana, Minnesota, Mississippi, New Mexico, Oklahoma, and Texas


  • American Society of Mechanical Engineers (ASME)
  • American Society of Plumbing Engineers
  • Certified Plumbing Engineer
  • Certified EPA Refrigerant Recovery Technician "Universal"
  • Society of Automotive Engineers

College Education

  • Bachelor of Science in Mechanical Engineering
    Tulane University, 1967

Testimony history available upon request.

1410 Lakeside Pkwy., Ste. 100, Flower Mound, TX 75028 * 214-614-6500 * HaagEngineering.com