[70gtorag]

My experience with the product was primarily for acoustic properties. The thermal properties of the products were also important, but did not influence the decision. The goal was to reduce noise caused by vibration, engine noise, road noise, etc. As well I installed an awesome stereo system and wanted to keep the sound within the vehicle, and cut down vibration. The result is a much quieter ride, and much less heat transmission from the engine/tranny area. The website www.b-quiet.com will only give you the acoustic properties, and will also price compare their product to the waaayyy expensive Dynamat, which is mainly why I chimed in on the thread. As I said, for my install I did the entire interior of the car, from the bottom edge of the front windshield to the back of the seats, and from door glass to door glass. The product is easy to install, as it forms and molds itself to the contours of the metal, with some persuasion of course, and in the difficult areas the aid of a blow dryer or heat gun help it flow better.
I wish I could help you answer the real question you are after about thermal resistance but I do not know. You could try the contact us button on the web page and ask if a tech can help you. Good Luck.