What is reflective insulation?

Since all building materials have radiant properties, when dealing with the concept of energy efficient buildings, it is important to look at the issue of radiant heat transfer. The best way to block radiant heat transfer is either to reduce its intensity at its source or simply to reflect it. Bizofol accomplishes the former, by reducing radiant heat transfer with its low emmisivity and by reflecting the heat radiating from the surrounding building materials with its high reflectivity ..