Name:   John C - Subject:   spray foam Date:   12/20/2016 5:00:02 PM

so far I don't have a fair test with the system running, but once I do I will post. Keep in mind my AC is an old package unit that is at least 25 years young. I did get them to spray the ductwork underneath the house. 

The best result I have seen is: before we sprayed on a cold day I went by there. It was like 48 outside and I promise the thermostadt read 46 inside. 

After spraying, I went by on a cold day last week and it made careful note: 39 outside, 51 inside.