Found this page on the DOE site this morning.
I like this part… I use this all the time…
“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.”
No ever seems to mention this line:
“Thermographic scans are also commonly used with a blower door test](http://apps1.eere.energy.gov/consumer/your_home/energy_audits/index.cfm/mytopic=11190) running. The blower door helps exaggerate air leaking through defects in the building shell.”
Not only does the blower exaggerate the air leaks but reverses air exfiltration at points that IR won’t pick up because the exiting air is the same temperature or very close to the interior drywall temps…therefor the exfiltration points are missed. Also with IR you cannot quantify the the extent/amount of air leakage and what the potential is for improvement…Is the house a sieve with high potential for air sealing savings or is it quite tight…in which case, move on to other issues.
Is this type of IR scan patented also?:roll:
The blower door with an infrared camera is also required for EnergyStar energy audits. We have had a ton of people calling in about getting set up for this type of energy audit.
Jason Kaylor – JJ
VP of Sales
AC Tool Supply](http://www.aikencolon.com/)
Fluke Thermal Imagers
FLIR Thermal Imagers
Fluke TiR1 Resources
FLIR B60 Resources](http://www.flir-b60.com/)
Retrotec Blower Door Systems](http://www.retrotecblowerdoor.com/)
Retrotec Duct Blower Systems](http://www.aikencolon.com/Retrotec-Air-Blower-Systems_c_1074.html)
Not by me!!!
Ya know I was joking, right?
won’t be equivalent to a blower door but closing all fireplace flues (don’t make this mistake unless you want a cleaning bill) and turning on all hvac fans and all exhaust fans, kitchen, bath, laundry… will create enough negative pressure to reveal most thermal infiltration anomalies during a home inspection as long as there is a good enough indoor outdoor difference in temp
not talking air leakage, energy audits, just breeches in framing and insulation issues…
agree that blower door is optimal
Yep! But might be worth looking into it! There’s money to be made. Have you been paying your IR fees to that other HI company?
i’m using my IR patent fees to assist with the bailouts :roll:
*Don’t forget to turn off all combustion heating sources also.
that’s why i said hvac fans
should have been fans ONLY, ok :twisted:
way to early to be pickin’ :mrgreen:
OK!!! OK!!! Just didn’t want some newbie pulling combustion gases into the house.