[Tom Struble]

are you sure you want to know?

there is way more to know about building science than taking thermal images plus you have to be educated enough to be able to interpet them properly

you may be better off using an independent energy auditing firm,or maybe your cusomers would be better off

 

[Tom Struble]

if you do get the proper training first there are organizations your able to join that usually greatly discount the equipment you need to it's members

i really think you should talk with a energy auditing co.
if nothing else so you can familiarize yourself with the right way to it and analyze the results and make recomedations