ZS-INSUL radiant barrier foil insulation

Double Layer Bubble

We refer to the second style as "Foil-Double Bubble-White Poly", which consists of a double layer of polyethylene bubbles that are sandwiched between a layer of 99% pure aluminum radiant barrier foil and a smooth white polyethylene sheet. The white poly surface is water resistant and is very easy to keep clean. The smooth white side also provides a nice finished appearance to the interior of your building. The double bubble center provides maximum R-Value as well as creating a vapor barrier which eliminates condensation.