1. 1 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – September 2012eere.energy.gov QUALITY CONTROL INSPECTOR Interpreting Infrared

2. 2 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – September 2012eere.energy.gov Learning Objectives By attending this session, participants will be able to: Explain the benefits and limitations of infrared (IR) thermography. Interpret infrared images as they relate to weatherization opportunities. Demonstrate how to assess the quality of weatherization measure installation using IR images. Utilize IR imaging in conjunction with the blower door to track infiltration and guide air sealing activities. INTERPRETING INFRARED

3. 3 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – September 2012eere.energy.gov Infrared Capability INTERPRETING INFRARED Cannot see through anything Sees surface temperatures only Cannot see color Cannot see air

4. 4 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – September 2012eere.energy.gov Insulation Settled in End Wall Bays INTERPRETING INFRARED

5. 5 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – September 2012eere.energy.gov Missed Bay, Low Density Bays, Infiltration INTERPRETING INFRARED

6. 6 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – September 2012eere.energy.gov Poorly Blown Cellulose in a Sloped Ceiling INTERPRETING INFRARED

7. 7 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – September 2012eere.energy.gov Wind-Driven Infiltration at Dropped Soffit INTERPRETING INFRARED

8. 8 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – September 2012eere.energy.gov Wind-Driven Infiltration Wind-driven infiltration over ceiling at eaves side of house INTERPRETING INFRARED

9. 9 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – September 2012eere.energy.gov IR and the Blower Door With Blower Door RunningWithout Blower Door Kitchen SoffitCabinets INTERPRETING INFRARED

10. 10 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – September 2012eere.energy.gov IR and the Blower Door INTERPRETING INFRARED

11. 11 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – September 2012eere.energy.gov Blower Door-Driven Infiltration #1 Infiltration at light fixture Infiltration at ceiling/wall junction INTERPRETING INFRARED

12. 12 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – September 2012eere.energy.gov Blower Door-Driven Infiltration #2 Infiltration at bath ceiling fan/light fixture INTERPRETING INFRARED

13. 13 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – September 2012eere.energy.gov IR imaging sees surface temperature only. Interpreting IR requires putting images in context. IR imaging cannot see through anything. Images are easiest to interpret when there is a large temperature difference but always require a trained technician for accurate interpretation. In conjunction with the blower door, IR imaging is a powerful tool for diagnosing infiltration and targeting air sealing activities. Summary INTERPRETING INFRARED