NONDESTRUCTIVE TESTING

 

FCG uses infrared, capacitance and nuclear equipment to perform

 nondestructive testing.  The following is a review of the equipment

and testing procedures:

Infrared Thermal Imaging Radiometer

 

The Radiometer is used to detect the presence of moisture in roof

systems due to the differential heat loss between wet and dry insulation.

 

Nucleare Moisture Meter

 

The nuclear gage we use is a noninvasive moisture detector (AM241 Be).

The depth of accurate readings of the nuclear moisture detector is

approximately 6 inches.

 

Capacitance Leak Seeker

 

The capacitance scanner detects the presence of moisture in the roof system due to the differences in the dielectric constant between water and roofing materials.

 

Each of these systems has unique limitation and neither should be used in the presence of standing water; therefore utilizing two of them in combination provides a desirable cross check with a correspondingly higher confidence level in the results obtained.