How does CoEm-Tek coatings compare with “traditional” insulation?
Traditional insulation is meant to be mass insulation for protection against heat transferred by conduction (see explanation of Heat Transfer Mechanisms). CoEm-Tek coatings on the other hand prevents heat transfer by radiation. Traditional insulation and radiant barriers have value and one does not necessarily replace the other. In many cases radiation control coatings compliment traditional mass insulation. Traditional insulation is typically installed on the underside of roofs, or inside the walls of buildings. As the outside temperature warms the roof or wall the heat is absorbed into the mass insulation. Once the mass insulation is saturated it re-radiates that heat back into the building. CoEm-Tek coatings keep 85% of the heat from solar radiation from ever getting into the roof because of its high solar reflectivity. The 15% that is absorbed by the coating is quickly dissipated through the ceramic particles by the products high rate of emissivity.
