This group is dedicated to knowledge sharing and discussion of infrared thermography for building sciences and energy applications.

Members: 186
Latest Activity: Apr 5

Discussion Forum

New building thermography 360 pages ebook - including blower door and heat flux meter !

Started by Davide Lanzoni. Last reply by Don Fitchett Jan 10, 2015. 3 Replies

Link to buying and pdf preview page: is a rich handbook (over 300 pages in original printed edition, much more in this ebook) about thermography applied…Continue

Tags: door, airtightness, blower, infrared, building

Expert Eye Needed

Started by Matthew P. Last reply by Ed Minch Nov 15, 2014. 17 Replies

Hi AllWanted to get the opinion of an expert.Attached is a photo of a customer's window.... as you can see there is a large cold spot above the window... Here's my I right?The large horizontal cold spot is thermal bridging from the…Continue

Tags: windows, ir

Google Thermal View?

Started by Joshua Knittel. Last reply by tedkidd May 31, 2013. 4 Replies

As most of you know, there is more to an energy audit or energy rating (such as a HERS rating) than just the thermal imaging - but this start up company is using it to get a nationwide database going.........Here's a link to the article on…Continue

Tags: Audit, business, Energy, Google, imaging

Infrared Image - What is it?

Started by Fluke Thermal Imaging. Last reply by Dale Sherman Apr 26, 2012. 6 Replies

We thought it'd be fit to share this infrared image we received from group member, CK Ang, in New Zealand. Just wanted to spark some discussion here on what you guys think this image is of, and what the problem could be. A little background on the…Continue

Tags: Fluke, Ti55FT, telephoto, lens, Ang

Timber Home with no effective air barrier

Started by Davide Lanzoni. Last reply by Sean Lintow Sr Apr 11, 2012. 1 Reply

Hi folks,just another image of a brand new timber home without an effective air barrier, and without sealing tapes.…Continue

New article on infrared thermography

Started by John Snell. Last reply by Jim Klebes Nov 17, 2011. 1 Reply

The Journal of Light Construction has long been respected as a place where builders can educate themselves and share information. I was recently asked to write an article introducing their readers to thermography and how it can be used in the…Continue

Moisture detection, a fascinating thermal signature

Started by John Snell Sep 9, 2011. 0 Replies

I don't mean to derail folks from this website to ours (I often send folks here too!) but that is exactly what I'm going to do because has a fascinating discussion about thermal signatures of…Continue

New York first passivhaus ...

Started by Davide Lanzoni. Last reply by John Snell Aug 25, 2011. 4 Replies

... with windows with a better R-value than walls ?…Continue

Using thermal imagers in the summer

Started by John Snell. Last reply by Tyson Pischel Jul 7, 2011. 5 Replies

Too many thermographers leave their imagers in the case during the summer. This comes, in part, from the way we used to work when imagers were not nearly as sensitive and our understanding of how to use them was limited to winter work.Get the darned…Continue

IR and Moisture Meters

Started by Bret Monroe. Last reply by allen p tanner Jun 23, 2011. 12 Replies

As many of you know the new RESNET Guidelines are being worked on and I am advocating for the use of Moisture Meters to ensure potential serious moisture problems in sidewalls and building substrate material is not being overlooked when identified…Continue

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Comment by John Wes on July 8, 2013 at 3:39pm

Looking to buy a thermal imaging camera soon. Want to know what is the best one out there for the features and price?




Comment by Judi Lyall on May 30, 2013 at 4:20pm

Hello Folks,

     I have decided to retire and would like to sell my equipment. I have a rarely used 2 year old FLUKE TiR. I used it for checking insulation and building science stuff. Asking 3490.00, my number is 818.625.0987 Here is the details: FLUKE%20001.JPG

Includes IR-Fusion® Technology both in camera and software (combines visible image with IR image in full screen or picture-in-picture views) for easy identification and reporting of problems
Rugged and reliable: Engineered to withstand a 2 m (6.5 ft) drop
9.1 cm (3.6 in) diagonal landscape color VGA (640 x 480) LCD
Temperature range and thermal sensitivity optimized for building diagnostics applications
Perfect for any application and budget
Excellent thermal sensitivity for seeing even small temperature differences (which could indicate problems)
Adjustable hand strap for left- or right-handed users
Everything needed to get started is included.
Training DVD is now included free. See how easy it is to set up your thermal imager, create professional reports with SmartView software and learn thermography theory with step-by-step video instructions.
Manufactured in the U.S.A.

ONLY 3490.00                       CALL ME 818.625.0987

Thanks Judi Lyall 

Comment by Joshua Knittel on May 21, 2012 at 4:46am

As most of you know, there is more to an energy audit or energy rating (such as a HERS rating) than just the thermal imaging - but this start up company has a good idea on how to get a nationwide database going.....

Here's a link to the Treehugger article:

Comment by John Snell on May 26, 2011 at 5:09pm
No, despite what some suggest, it is not a simple process to determine R-value or otherwise quantify heat transfer based on a single thermal image. Still, images can be very compelling and other tests can fill in the numbers.
Comment by Hal Skinner on May 26, 2011 at 5:02pm

That was what I had somewhat envisioned for that test.


One room in a home.  Half the wall painted with the coating and half with regular paint and thermal picture from the outside to show the heat energy reduction.


The 2nd test would be painting the coating on a section of a wall and regular paint on the EXTERIOR wall, again both on the same wall of a room - half and half, to show the reduction.


What I am most curious to see is if what it shows on the thermal picture can be measured in some form.  Or, is that going to require other measuring equipment to determine exactly what % of reduction we are looking at in the thermal picture.


What radiation / heat energy they see on one half vs what they see on the other.  Can a thermal inage akone determine that?

Comment by John Snell on May 26, 2011 at 4:50pm

Hal, One of the issues you run right into using thermography to show the impact of insulating coatings is that the imagers SEE radiation. Thus if the coating reflects radiation in the wavelengths detected by the imager, you'll see that but that doesn't necessarily show how effective the coating is. Better to paint some of the interior wall surfaces and leave others unpainted and then look at the wall from the exterior; of course this assumes all walls are same construction (except the coating) and that all thermal influences on both sides of the wall are similar. 

I know some folks have tried this sort of test but I'm not convinced they "dotted all their i's and crossed all their t's" if you know what I mean.

It might be more effective to design a demonstration on a smaller scale, say a couple of cardboard boxes with the same internal heat source. If the coating actually reduced heat transfer, it would show up on the exterior side. John N. is correct, however, in that most people would not accept a couple of cardboard boxes as good science!

Comment by John Nicholas on May 26, 2011 at 9:04am



If you set it up so you could follow a standardized testing protocol, such as RESNET, ANSI, or ASTM perhaps you could make a claim.  Would your claim be accepted by the building performance industry?  Some would, some wouldn't.


Your best bet to establish a insulative value for any product claiming to retard heat transfer is to pay an independent lab to do a guarded hot box test on it.  That will actually measure the heat loss per sf in each sample.  The test is repeatable, and is not subject to interpretation.  With this independent test, you can get DOE, RESNET, BPI and other entities that are recognized within the industry to use the information.

Comment by Hal Skinner on May 26, 2011 at 7:57am

Hi Michael.


I have a question;  How exact a science is thermal imaging?  I have many years working with an insulating coating but ZERO experiences with thermal imaging.


Hypothetical situation;  If we painted an insulating coating on the interior sheetrock of a home, say we painted half a wall, I would expect a themal image showing a reduction in the loss of heat through that wall to the outside colder air.


Is thermal imaging an exact enough science so that those images can be analyzed to determine the exact amount of heat loss reduced and thereby calculate it's equivolent R-rating? 


Thanks and my apologies if this sounds like a dumb question.

Comment by Michael Stuart on February 3, 2011 at 4:14pm
I apologize that I have not posted anything interesting the group lately... but I have been a busy guy!   However, I attended ACI Northwest this week down in Portland, Oregon and had a great time.   On Monday of this week, I had an opportunity to perform a fun infrared inspection and blower door test with some other colleagues on a south Portland home.   I will share some of the images as soon as I get a chance to get them out of my Ti32 imager.  I also strongly encourage all other members of this group to post examples of your work, ask questions, and prod us into meaningful discussions.
Comment by Michael Stuart on December 23, 2010 at 10:19am

Happy Holidays to all on HEP!  May all of your season's wishes come true!  And may we all have a prosperous New Year!


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