From Jersey Infrared Consultants
The requirements listed below are based on current industry standards, including those published by ASTM, RCI and Infraspection Institute. Compromising on any of these requirements may adversely affect the results of the Infrared Flat Roof Moisture Survey.
Dry Roof Membrane:
The roof membrane must be dry at Sunrise. Areas that had moisture at Sunrise may not have enough solar loading to show the necessary thermal patterns. Since an infrared imager cannot “see through water”, any areas with the presence of ice, snow, or standing water cannot be surveyed.
Solar Loading:
The day of the Survey should be a mostly sunny day, providing good solar loading. A general rule of thumb is if the roof surface or a nearby similar surface (i.e. parking lot, street or sidewalk) is warm to the touch, the roof will be warm.
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