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Originally Posted by malconium
Reflective foil works by blocking the flow of radiant energy. Radiant energy is what you feel when you stand out in the sunshine. Something like 85% of the heat that is lost through the walls during the winter is of type radiant. The number is more like 95% through the roof. Foil type insulation is most effective when it is installed with an air gap on both sides. Some tests that I have done indicate that the foil does a better job than the 1-1/2" of fiberglass insulation that was stock in our Airstreams. There are other tests being done now too. Take a look at the following threads:
Insulation - real test results...
Insulation effectiveness tests
The following thread has some tips and tricks that I used for foil insulation installation:
http://www.airforums.com/forums/f46/...cks-30196.html
Malcolm |
Thanks.
That's a lot of information!! I do believe that I am going to do the foil insulation in one form or another. I won't be getting to it until this summer. I will be gone for a couple months for work starting at the end of this month, so I'm sure when I get back to it, there will be even more info. I'm pretty curious about the van that was insulated with the paint and foil process in one of the threads.
Shell is coming off this weekend. I have all new sheets of marine plywood, por 15, and a couple new outriggers, so I'm ready to get moving again.