Thermal Signatures Styrofoam/Fiberboard Roof

[MH]

I have not completed many flat roof surveys for water contaminaton and need a little help. I have surveyed my plants roof and found water under a newly installed section of roof. The replacement roof is suppose to be composed from fiber board and styrofoam. The only problem I see in my survey is that the water appears to be a large lake type formation. This would suggest to me that the roof installed is of fiber board only. If styrofoam had been installed I should see the thermals of the water giving up its signature through or between the butt joints lines between each installed piece of styrofoam. Am I correct? I am trying to solve this mystery if there is one. I am sure that I should not see all of the water along with all of its thermal signature unimpeeded. Am I correct? I have never posted an image and am not having luck in doing so. Therefore, is anyone would like an image and it would aid in helping me. Would you mail me with a request Jbryant@kcp.com and I will send an image. Pre Thanks for any help I will be most grateful![/img]