The primary function of reflective insulation is to reduce radiant heat transfer across open spaces, which is a major contributor of heat gain or heat loss in different weather conditions. The RMI Reflective Foil is engineered to provide an extremely effective, low-cost system to help keep temperatures balanced. Once installed in a building cavity, air is trapped, reducing heat flow by convection. Foil stops radiant heat flow by both reflectivity and emissivity. The foil also resists fungus, mildew, insects and rodents.
