I've install pex tubing between joist with aluminum plates in my house. I have a full basement but its not living space so I don't need to heat it to living space temp. Which reflective barrier and insulation would be better a reflective barrier with fiberglass or an reflective bubble foil? I know with the fiberglass and reflective barrier it is recommend 1-2" gap between barrier and tubing but if I use the reflective bubble foil how much gap should be left?
Post by Christopher on Oct 20, 2011 10:53:41 GMT -6
The foil-faced fiberglass insulation would be your best choice. The bubble insulation tends to not have as much of an R-value as stated, and over time the bubbles are going to deflate and you'll lose most of the insulating factor. Even if you do go with a bubble-foil, you'll still need that 2" air gap.