Quote:
Originally Posted by biker1
I tend to believe the scientists who have done real research on building science. Being a scientist myself, I go with the facts. You don't seem to understand basic physics. Whatever, feel free to carry on.
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Then you will appreciate that the actual savings from radiant barriers are 3 to 5 percent of cooling costs as measured by users. Or one to two percent of actual electric bills
Your best guide is the real world. But if you want a scientific study here you go
National Renewable Energy Laboratory (NREL) Home Page | NREL › docsPDF
Internal Roof and Attic Thermal Radiation Control Retrofit Strategies for ... - NREL. It found 2.4 degrees Celsius cooler attics in those with radiant barriers. While 4.32 degrees is great a attic fan that can lower the temp ten to 20 degrees is better.
Guess what? That study found. Wait for it
Three percent savings in COOLING costs. So here we go scientific proof.
But feel free to carry on. Better yet do your own study as I have.