The imager must also have real time control of level and gain settings.
Roof infrared inspection standard.
The standard covers procedures for both ground based and aerial inspections.
An astm standard c 1153 standard practice for location of wet insulation in roofing systems using infrared imaging describes how to conduct a roof moisture inspection and is also highly recommended reading for anyone doing this type of work.
This application standard outlines practices and procedures for specifying and safely performing infrared inspections of insulated roofing systems.
Standard for infrared inspection of insulated roofs.