Foam is inherently less effective than other materials such as compressed fiberglass, mineral wool and cotton.
I tried emailing them also, but never got a response.
I was able to talk to them (Dave Paxton) on the phone, and he was very helpful with suggestions about the best way to treat my room. He even suggested I send in a sketch of my room and he'd look at it and give me the best solution.
But after some research and Kal's suggestions, I ended up going a different route, and got some DIY frames and cotton insulation. I'm quite happy with the results.