During summer POLYNUM SUPER reflective insulation material radiant barrier can block up to 97% portion of the sun radiated heat from being transferred in to the building and balance heat enters by conduction and convection. During winter, radiant barrier keeps heat from escaping from your building by reflecting 97% portion of the radiant heat back in, in turn requiring less work by your heating system. Thus, POLYNUM SUPER effective insulation is the only insulation, which is equally efficient and saves substantial energy in both summer and winter, which is not the case with the conventional insulation material.