The building envelope is what separates the exterior of the building from the interior conditioned areas of the building. Infrared inspections can be used to evaluate the envelope. Due to the rising cost of energy it is important to reduce energy loss. An infrared survey can detect insulation voids, air leakage, structural defects, poor workmanship, and moisture ingress in structure to name a few. These are causes of unnecessary energy loss
With the appropriate temperature difference between the condition and the unconditioned space the infrared imaging radiometer is able to reveal areas where the insulation has settled, was improperly installed, or not installed at all. This type of infrared inspection is also capable of revealing these exceptions on various types of building systems such as wood frame, metal building and concrete block walls. If the insulation is properly installed and in place, it can still lose significant energy because of moisture intrusion. Because insulation and building components are moist or saturated it causes conductive energy loss
Another major cause of energy loss in a building envelope is due to air leakage. Exterior air can leak into the building or conditioned air can leak out of the building at numerous locations. With the proper weather conditions and site conditions, an infrared inspection identify areas of leakage regardless how insignificant they may seem. To identify areas were air is leaking into the building envelopethe infrared survey will be performed on the interior of the building. For identifying areas where interior conditioned air is escaping from the build the survey will be done from the exterior of the building.
When an area or a building component is located that has an abnormal thermal pattern or thermal anomaly an infrared image will be produced of the area, combined with an explanation of the problem and other information that would be necessary to correct the problem.
With an appropriate temperature difference between the condition and the unconditioned space the thermal camera will show areas where the insulation has settled or not installed correctly or just plain missing. It will also show where air may be leaking in or out of the conditioned space.