About Us
As co-owner of QED LAB / Q.E.D., Inc., Charlie Klingner brings over 15 years of industry expertise to the precise work of FGIA/AAMA-certified window testing. His extensive knowledge of building envelope science informs both quality assurance and forensic testing regimens. Prior to taking over management of QED, Charlie worked as a forensic observer for a prominent Northwest forensic consulting firm. His duties included testing, observations, inspections, current condition assessments, EIFS/stucco investigations, remediation protocols, building science and thermography, mediation and litigation support, writing scope of repairs and technical reports. He oversaw the construction and remediation of building envelopes, including roofs, siding, rain screen systems, flashing, deck membranes, and window installations.
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