Infrared Thermography for Residential Retrofits

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Infrared Thermographyfor Residential Retrofits

• Visual Cue Thermal Imaging

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Energy Efficiency vs. Conservation

• Green Building - New Construction
• Production Builders on Board Now
• Green Retrofits Can Go Upside Down
• Demand Water Heaters
• Home Run Plumbing
• Dual Pane Windows
• Insulation and Weatherization are Key

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DOE Recommends Thermography

• In addition to using thermography during an
  energy audit, you should have a scan done before
  purchasing a house even new houses can have
  defects in their thermal envelopes. You may wish
  to include a clause in the contract requiring a
  thermographic scan of the house. A thermographic
  scan performed by a certified technician is
  usually accurate enough to use as documentation
  in court proceedings.
• http//www.eere.energy.gov/consumer/your_home/ene
  rgy_audits/index.cfm/mytopic11200

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Background

• Thermal imaging detects surface temperature
  differences. Originally, it was used in the
  military service to observe enemy movement at
  night and in hospitals to monitor the temperature
  change of organs and tissues.
• Honeywell Adapted the Technology

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Everything Emits Infrared Energy

• Surface Temperatures Are Just Indicators
• Object May Reflect Other Objects Emissions
• Atmosphere Plays a Big Part
• Density and Thermal Capacitance Do Too
• Imager Calculates Temperature
• Scientific Visualization

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Heat Transfer

• Conduction Moves through Solids and Between
  Solids That Touch
• Frying
• Convection Through Gases Fluids
• Actually mass conduction
• Radiation In Waves as Particles
• Direct sun

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Infrared Applications

• Building Sciences
• Motor and Electric Circuits
• PV Solar Troubleshooting
• Equine
• Marine
• Medical

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Building Science Uses

• Locate Water Intrusion in Roofing
• Locate Air Gaps, Insulation Problems
• Identify Cooling Losses through Ducting
• Create Framing Maps
• Monitor Retrofit Insulation Work
• Confirm Quality of Work Completed

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Is this wall insulated? Red is hot, blue is
cold. Its cooling season, and youre inside the
building.










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Does this picture convey more or less information?
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Thank you for your time!

• Questions or comments?

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