Whats the difference between “Reflective” and “Poly?”
Single Bubble Reflective Insulation is also called Reflective/Bubble/Reflective, because it’s made up of a layer of bubbles sandwiched between two layers of reflective surfaces; Single Bubble Poly is also called Reflective/Bubble/Poly because there is a layer of white poly replacing one of the layers of foil. And of course, the same is true for the Double Bubble products.