Thermo cover window insulation 1,5 x 1,7 m. many older homes still have single pane windows that are not up to modern insulation. thermo cover is a unique non-adhesive window insulation film. it functions as the insulating air cushion film capable of replacing the second missing window pane. at the same time. this insulating window film functionally reduces annoying window condensation. its easy application is carried out with the help of a traditional hair dryer