How to Use Heat Containment Foil

BLUEBERRYinPROCESS

Active Member
Hey guys iv purchased some heat containment foil from my local hydro store. It is a greyish silver on one side and black on the other. Im just wondering how it used. Is it black side against the walls or the greyish silver side against the walls??

How do you rate this stuff ?
 
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