Daniel A. Gach

Associate Principal


Daniel Gach specializes in facade assessment and investigations. He performs field investigations and condition surveys to investigate the causes of deterioration, water leakage, and air infiltration in various building types using standardized test methods. Mr. Gach also prepares repair documents and provides construction phase services for a variety of projects containing different materials, including brick masonry, terra cotta, stone, concrete, stucco, EIFS, metal, and glass.

Mr. Gach consults on building envelopes of residential, commercial, and civic projects, using knowledge and experience gained from investigating system failures. As a senior member of WJE’s Difficult Access Team, he has assisted in developing internal standards for conducting inspections via industrial rope access techniques.


Curtain Wall Systems

  • Sears Tower (now Willis Tower) - Chicago, IL: In situ testing of applied window film
  • Soldier Field - Chicago, IL: Investigation of staining of glass curtain wall
  • Sprint Center - Kansas City, MO: Third-party review of curtain wall


Difficult Access Inspections

  • Colorado State Capitol - Denver: Condition assessment of cast iron dome
  • Eisenhower Executive Office Building - Washington, D.C.: Facade inspection of granite exterior
  • Washington Monument - Washington, D.C.: Condition assessment of postseismic damage using industrial rope access techniques and repair recommendations


Facade Assessment

  • 1999 Broadway - Denver, CO: Condition assessment of stone and glass facade
  • Granite Tower Building - Denver, CO: Condition assessment of aluminum and glass curtain wall
  • Tribune Tower - Chicago, IL: Facade inspection of limestone exterior​


Glass Breakage Investigation

  • CNA Plaza (now CNA Center) - Chicago, IL: Investigation of glass breakage and development of repair at building’s south tower
  • Richard J. Daley Center - Chicago, IL: Investigation of glass breakage and repair recommendations


Leakage Investigation

  • Green Mountain High School - Lakewood, CO: Investigation of water leakage and development of repairs
  • Hertz Administration Building - Oklahoma City, OK: Investigation of leakage of curtain wall
  • One Denver Highlands - Denver, CO: Investigation of water leakage and development of repairs


Water Penetration Testing

  • 1600 Glenarm Place - Denver, CO: Water infiltration testing
  • Northwestern University, Kresge Hall - Evanston, IL: Air and water infiltration tests at addition
  • Platte Valley Medical Center - Brighton, CO: Water infiltration testing
Professional Affiliations

Building Enclosure Council - Colorado Chapter


Architect in CO and IL
National Council of Architectural Registration Boards Certificate
Society of Professional Rope Access Technicians - Level 3 Supervisor


University of Illinois at Urbana-Champaign
Bachelor of Science in Architectural Studies, 1998
Master of Architecture, 2000