John Wegscheider is the Product Validation Manager for our St. Paul and Wausau laboratories. John began his career in construction and today manages a team of 6 experts with over 70 years’ combined experience in the fenestration testing field. Under his watch, his team performs a number of fenestration tests including: Acoustic testing, Thermal Simulation & Physical Testing, and Air/Water/Structural testing.

John specializes in certifying materials for NAFS, Energy Star, the National Fenestration Ratings Program, Miami/Dade, Florida Building Code and the City of Chicago Department of Aviation Sound Insulation Program. His sector specific experience includes the following:

  • Acoustic Testing
  • Sound Transmission
  • Sound Absorption
  • NFRC
  • Thermal Transmittance
  • Thermal Resistance
  • Condensation Resistance
  • Air Infiltration
  • Water Penetration
  • Impact

John is currently a member of several fenestration related organizations that include:

  • ASTM Committee E33 – Building and Environmental Acoustics
  • AAMA- American Architectural Manufacturers Association
  • WDMA- Window and Door Manufacturers Association
  • National Fenestration Rating Council
    • Ratings Committee
    • Research and Technology Committee
    • Technical Committee
    • NFRC 700 Certification Process Streamline Task Group
    • Testing Laboratory Task Group
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