Does rFOIL™ keep a substance cool as well?
rFOIL™ does not necessarily ‘cool’ a substance. Rather, it prevents it from taking on heat. For example, an ice-cooler that is lined with reflective insulation can keep it’s contents cool, by reflecting the Sun’s radiant heat away from the interior of the cooler. Consider the following simple experiment: Ice was placed in 3 separate boxes and it’s rate of melting was recorded. In the boxes insulated with fiberglass and foam, the bags of ice took 24 hours to melt. The bag of ice placed in the box lined with reflective aluminum took 4 days to melt! This test clearly exposes the fallacy of the R-Value test: A higher r-value does not necessarily mean a better insulator.
