Plastic Fiber Insulation
The recycled content and clean manufacturing process of plastic fiber insulation are expected to make this product quite popular when it enters the marketplace in the near future. Plastic fiber batts are made from recycled polyethylene terephthalate (PET), commonly used to make milk containers. Although the batts are difficult to cut with standard tools, the insulation does not cause skin irritation. The batt insulation is extremely soft yet looks like high-density fiberglass.
R-values vary depending on the density of the product. Revalues range from 3.8 to 4.3 per inch. The material does not burn when exposed to an open flame, but it melts at a low temperature. Major U. S. insulation manufacturers are expected to produce plastic fiber insulation products within the next few years.15