DIY Home Repair Forum: Roofing and Siding
07-13-2007, 01:01 PM
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Replies: 14
Views: 15,551
Radiant barrier & bubble insulation
Actually the bubble wrap does have an R-Value. It's the radiant barrier by itself that doesn't. R Values are tested using what is called a Hot Box Test. Basically, an insulating material is put in...
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