Comparative Analysis of Thermographic Inspections Performed on Retrofitted Homes

摘要

An applied research program was sponsored by the Department of Energy to analyze and compare the results from inspections that utilized infrared sensing systems to identify thermal deficiencies in buildings. This research consisted of both the laboratory evaluation of the commonly used infrared sensing equipment for building inspections and the field evaluation of the accuracy and consistency of the results of thermographic surveys performed by various thermographic inspectors. The field evaluation of thermographic inspection performed by infrared contractors was undertaken using residences previously inspected by the National Bureau of Standards (NBS) as part of the Community Services Administration Weatherization Program. The results of the first phase was carried out in 1978-79 and published in a previous report. The present report contains the analysis and comparison of thermal anomalies detected by NBS and infrared contractors, during the second phase of this research program, on twenty single-family residences in five cities in 1980-81.